./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f51bff6-2547-49c3-997d-7f88a126504e/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f51bff6-2547-49c3-997d-7f88a126504e/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f51bff6-2547-49c3-997d-7f88a126504e/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f51bff6-2547-49c3-997d-7f88a126504e/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f51bff6-2547-49c3-997d-7f88a126504e/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f51bff6-2547-49c3-997d-7f88a126504e/bin/utaipan-6cKwYrpEi9 --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 e5a4c274bc0fec0eeea8ea2f72c4bc5bbc7aef2fd24f2cf907e22c2c7f3759d4 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 21:07:19,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 21:07:19,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 21:07:19,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 21:07:19,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 21:07:19,543 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 21:07:19,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 21:07:19,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 21:07:19,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 21:07:19,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 21:07:19,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 21:07:19,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 21:07:19,551 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 21:07:19,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 21:07:19,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 21:07:19,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 21:07:19,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 21:07:19,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 21:07:19,559 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 21:07:19,561 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 21:07:19,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 21:07:19,564 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 21:07:19,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 21:07:19,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 21:07:19,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 21:07:19,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 21:07:19,571 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 21:07:19,572 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 21:07:19,572 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 21:07:19,573 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 21:07:19,574 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 21:07:19,574 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 21:07:19,575 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 21:07:19,576 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 21:07:19,577 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 21:07:19,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 21:07:19,578 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 21:07:19,578 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 21:07:19,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 21:07:19,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 21:07:19,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 21:07:19,588 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f51bff6-2547-49c3-997d-7f88a126504e/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-20 21:07:19,626 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 21:07:19,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 21:07:19,627 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 21:07:19,627 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 21:07:19,628 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 21:07:19,628 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 21:07:19,628 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 21:07:19,629 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 21:07:19,629 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 21:07:19,629 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 21:07:19,630 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 21:07:19,630 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 21:07:19,630 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 21:07:19,630 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 21:07:19,631 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 21:07:19,631 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 21:07:19,631 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 21:07:19,631 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 21:07:19,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 21:07:19,632 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 21:07:19,632 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 21:07:19,633 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 21:07:19,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 21:07:19,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 21:07:19,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 21:07:19,633 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 21:07:19,634 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 21:07:19,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 21:07:19,634 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 21:07:19,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 21:07:19,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 21:07:19,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 21:07:19,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:07:19,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 21:07:19,636 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 21:07:19,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 21:07:19,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 21:07:19,636 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 21:07:19,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 21:07:19,637 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 21:07:19,637 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 21:07:19,637 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f51bff6-2547-49c3-997d-7f88a126504e/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f51bff6-2547-49c3-997d-7f88a126504e/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e5a4c274bc0fec0eeea8ea2f72c4bc5bbc7aef2fd24f2cf907e22c2c7f3759d4 [2022-11-20 21:07:19,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 21:07:20,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 21:07:20,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 21:07:20,028 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 21:07:20,029 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 21:07:20,030 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f51bff6-2547-49c3-997d-7f88a126504e/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c [2022-11-20 21:07:23,136 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 21:07:23,368 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 21:07:23,369 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f51bff6-2547-49c3-997d-7f88a126504e/sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c [2022-11-20 21:07:23,385 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f51bff6-2547-49c3-997d-7f88a126504e/bin/utaipan-6cKwYrpEi9/data/d5f7bea43/7c71d1d811f6486cadb6fc58807cf9d5/FLAGae3de0e53 [2022-11-20 21:07:23,708 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f51bff6-2547-49c3-997d-7f88a126504e/bin/utaipan-6cKwYrpEi9/data/d5f7bea43/7c71d1d811f6486cadb6fc58807cf9d5 [2022-11-20 21:07:23,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 21:07:23,712 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 21:07:23,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 21:07:23,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 21:07:23,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 21:07:23,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:07:23" (1/1) ... [2022-11-20 21:07:23,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c2a97be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:07:23, skipping insertion in model container [2022-11-20 21:07:23,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:07:23" (1/1) ... [2022-11-20 21:07:23,734 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 21:07:23,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 21:07:24,068 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f51bff6-2547-49c3-997d-7f88a126504e/sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c[18537,18550] [2022-11-20 21:07:24,072 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:07:24,083 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 21:07:24,188 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f51bff6-2547-49c3-997d-7f88a126504e/sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c[18537,18550] [2022-11-20 21:07:24,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:07:24,211 INFO L208 MainTranslator]: Completed translation [2022-11-20 21:07:24,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:07:24 WrapperNode [2022-11-20 21:07:24,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 21:07:24,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 21:07:24,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 21:07:24,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 21:07:24,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:07:24" (1/1) ... [2022-11-20 21:07:24,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:07:24" (1/1) ... [2022-11-20 21:07:24,259 INFO L138 Inliner]: procedures = 56, calls = 100, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 202 [2022-11-20 21:07:24,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 21:07:24,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 21:07:24,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 21:07:24,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 21:07:24,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:07:24" (1/1) ... [2022-11-20 21:07:24,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:07:24" (1/1) ... [2022-11-20 21:07:24,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:07:24" (1/1) ... [2022-11-20 21:07:24,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:07:24" (1/1) ... [2022-11-20 21:07:24,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:07:24" (1/1) ... [2022-11-20 21:07:24,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:07:24" (1/1) ... [2022-11-20 21:07:24,298 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:07:24" (1/1) ... [2022-11-20 21:07:24,299 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:07:24" (1/1) ... [2022-11-20 21:07:24,302 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 21:07:24,303 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 21:07:24,303 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 21:07:24,303 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 21:07:24,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:07:24" (1/1) ... [2022-11-20 21:07:24,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:07:24,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f51bff6-2547-49c3-997d-7f88a126504e/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:07:24,349 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f51bff6-2547-49c3-997d-7f88a126504e/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 21:07:24,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f51bff6-2547-49c3-997d-7f88a126504e/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 21:07:24,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 21:07:24,384 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-20 21:07:24,384 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-20 21:07:24,384 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-20 21:07:24,385 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-20 21:07:24,385 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-20 21:07:24,385 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-20 21:07:24,385 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-20 21:07:24,385 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-20 21:07:24,385 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-11-20 21:07:24,385 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-11-20 21:07:24,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 21:07:24,386 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-20 21:07:24,386 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-20 21:07:24,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 21:07:24,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 21:07:24,468 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 21:07:24,471 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 21:07:24,717 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 21:07:24,989 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 21:07:25,004 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 21:07:25,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:07:25 BoogieIcfgContainer [2022-11-20 21:07:25,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 21:07:25,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 21:07:25,016 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 21:07:25,019 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 21:07:25,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:07:23" (1/3) ... [2022-11-20 21:07:25,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3680dab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:07:25, skipping insertion in model container [2022-11-20 21:07:25,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:07:24" (2/3) ... [2022-11-20 21:07:25,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3680dab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:07:25, skipping insertion in model container [2022-11-20 21:07:25,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:07:25" (3/3) ... [2022-11-20 21:07:25,023 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product43.cil.c [2022-11-20 21:07:25,050 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 21:07:25,050 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 21:07:25,109 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 21:07:25,116 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=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@707ce73e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 21:07:25,116 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 21:07:25,121 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-20 21:07:25,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-20 21:07:25,131 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:07:25,132 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:07:25,132 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:07:25,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:07:25,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1388192853, now seen corresponding path program 1 times [2022-11-20 21:07:25,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:07:25,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393835494] [2022-11-20 21:07:25,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:07:25,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:07:25,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:07:25,407 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 21:07:25,408 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:07:25,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393835494] [2022-11-20 21:07:25,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393835494] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:07:25,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:07:25,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 21:07:25,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871570523] [2022-11-20 21:07:25,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:07:25,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 21:07:25,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:07:25,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 21:07:25,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 21:07:25,480 INFO L87 Difference]: Start difference. First operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 21:07:25,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:07:25,556 INFO L93 Difference]: Finished difference Result 100 states and 135 transitions. [2022-11-20 21:07:25,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 21:07:25,558 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-11-20 21:07:25,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:07:25,567 INFO L225 Difference]: With dead ends: 100 [2022-11-20 21:07:25,567 INFO L226 Difference]: Without dead ends: 46 [2022-11-20 21:07:25,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 21:07:25,574 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 21:07:25,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 21:07:25,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-20 21:07:25,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-20 21:07:25,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.3) internal successors, (39), 35 states have internal predecessors, (39), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-20 21:07:25,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2022-11-20 21:07:25,617 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 21 [2022-11-20 21:07:25,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:07:25,617 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2022-11-20 21:07:25,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 21:07:25,618 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2022-11-20 21:07:25,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 21:07:25,620 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:07:25,620 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:07:25,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 21:07:25,620 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:07:25,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:07:25,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1382298679, now seen corresponding path program 1 times [2022-11-20 21:07:25,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:07:25,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378433540] [2022-11-20 21:07:25,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:07:25,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:07:25,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:07:25,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 21:07:25,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:07:25,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378433540] [2022-11-20 21:07:25,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378433540] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:07:25,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:07:25,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 21:07:25,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619322312] [2022-11-20 21:07:25,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:07:25,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 21:07:25,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:07:25,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 21:07:25,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:07:25,790 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 21:07:25,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:07:25,857 INFO L93 Difference]: Finished difference Result 69 states and 87 transitions. [2022-11-20 21:07:25,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 21:07:25,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-11-20 21:07:25,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:07:25,863 INFO L225 Difference]: With dead ends: 69 [2022-11-20 21:07:25,863 INFO L226 Difference]: Without dead ends: 38 [2022-11-20 21:07:25,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:07:25,870 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 7 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 21:07:25,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 61 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 21:07:25,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-20 21:07:25,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-11-20 21:07:25,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.32) internal successors, (33), 30 states have internal predecessors, (33), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-20 21:07:25,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2022-11-20 21:07:25,883 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 47 transitions. Word has length 22 [2022-11-20 21:07:25,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:07:25,883 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 47 transitions. [2022-11-20 21:07:25,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 21:07:25,884 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2022-11-20 21:07:25,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-20 21:07:25,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:07:25,885 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:07:25,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 21:07:25,885 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:07:25,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:07:25,886 INFO L85 PathProgramCache]: Analyzing trace with hash 987876177, now seen corresponding path program 1 times [2022-11-20 21:07:25,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:07:25,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980891540] [2022-11-20 21:07:25,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:07:25,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:07:25,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:07:26,199 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 21:07:26,200 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:07:26,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980891540] [2022-11-20 21:07:26,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980891540] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:07:26,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:07:26,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 21:07:26,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969108361] [2022-11-20 21:07:26,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:07:26,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 21:07:26,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:07:26,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 21:07:26,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-20 21:07:26,203 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 21:07:26,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:07:26,655 INFO L93 Difference]: Finished difference Result 145 states and 181 transitions. [2022-11-20 21:07:26,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 21:07:26,656 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2022-11-20 21:07:26,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:07:26,661 INFO L225 Difference]: With dead ends: 145 [2022-11-20 21:07:26,661 INFO L226 Difference]: Without dead ends: 109 [2022-11-20 21:07:26,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-11-20 21:07:26,670 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 77 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 21:07:26,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 289 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 21:07:26,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-20 21:07:26,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 76. [2022-11-20 21:07:26,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 50 states have (on average 1.26) internal successors, (63), 56 states have internal predecessors, (63), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (15), 12 states have call predecessors, (15), 13 states have call successors, (15) [2022-11-20 21:07:26,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 91 transitions. [2022-11-20 21:07:26,703 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 91 transitions. Word has length 24 [2022-11-20 21:07:26,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:07:26,704 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 91 transitions. [2022-11-20 21:07:26,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 21:07:26,705 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 91 transitions. [2022-11-20 21:07:26,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 21:07:26,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:07:26,708 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:07:26,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 21:07:26,708 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:07:26,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:07:26,712 INFO L85 PathProgramCache]: Analyzing trace with hash -2066109895, now seen corresponding path program 1 times [2022-11-20 21:07:26,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:07:26,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139189431] [2022-11-20 21:07:26,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:07:26,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:07:26,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:07:27,172 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 21:07:27,172 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:07:27,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139189431] [2022-11-20 21:07:27,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139189431] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:07:27,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:07:27,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 21:07:27,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421667553] [2022-11-20 21:07:27,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:07:27,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 21:07:27,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:07:27,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 21:07:27,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-20 21:07:27,175 INFO L87 Difference]: Start difference. First operand 76 states and 91 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 21:07:27,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:07:27,660 INFO L93 Difference]: Finished difference Result 250 states and 317 transitions. [2022-11-20 21:07:27,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 21:07:27,661 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2022-11-20 21:07:27,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:07:27,663 INFO L225 Difference]: With dead ends: 250 [2022-11-20 21:07:27,664 INFO L226 Difference]: Without dead ends: 176 [2022-11-20 21:07:27,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2022-11-20 21:07:27,666 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 136 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 21:07:27,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 328 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 21:07:27,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-11-20 21:07:27,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 146. [2022-11-20 21:07:27,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 97 states have (on average 1.2268041237113403) internal successors, (119), 108 states have internal predecessors, (119), 24 states have call successors, (24), 22 states have call predecessors, (24), 24 states have return successors, (33), 23 states have call predecessors, (33), 24 states have call successors, (33) [2022-11-20 21:07:27,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 176 transitions. [2022-11-20 21:07:27,698 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 176 transitions. Word has length 27 [2022-11-20 21:07:27,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:07:27,698 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 176 transitions. [2022-11-20 21:07:27,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 21:07:27,699 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 176 transitions. [2022-11-20 21:07:27,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-20 21:07:27,700 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:07:27,700 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:07:27,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 21:07:27,700 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:07:27,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:07:27,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1419551120, now seen corresponding path program 1 times [2022-11-20 21:07:27,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:07:27,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871396523] [2022-11-20 21:07:27,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:07:27,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:07:27,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:07:27,996 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 21:07:27,997 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:07:27,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871396523] [2022-11-20 21:07:27,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871396523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:07:27,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:07:27,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 21:07:27,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272693657] [2022-11-20 21:07:27,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:07:27,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 21:07:27,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:07:27,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 21:07:27,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-20 21:07:27,998 INFO L87 Difference]: Start difference. First operand 146 states and 176 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 21:07:28,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:07:28,506 INFO L93 Difference]: Finished difference Result 414 states and 509 transitions. [2022-11-20 21:07:28,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 21:07:28,506 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 30 [2022-11-20 21:07:28,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:07:28,509 INFO L225 Difference]: With dead ends: 414 [2022-11-20 21:07:28,509 INFO L226 Difference]: Without dead ends: 301 [2022-11-20 21:07:28,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2022-11-20 21:07:28,511 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 100 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 21:07:28,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 276 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 21:07:28,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2022-11-20 21:07:28,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 231. [2022-11-20 21:07:28,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 155 states have (on average 1.2258064516129032) internal successors, (190), 172 states have internal predecessors, (190), 37 states have call successors, (37), 33 states have call predecessors, (37), 38 states have return successors, (51), 36 states have call predecessors, (51), 37 states have call successors, (51) [2022-11-20 21:07:28,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 278 transitions. [2022-11-20 21:07:28,557 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 278 transitions. Word has length 30 [2022-11-20 21:07:28,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:07:28,558 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 278 transitions. [2022-11-20 21:07:28,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 21:07:28,558 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 278 transitions. [2022-11-20 21:07:28,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-20 21:07:28,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:07:28,560 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-20 21:07:28,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 21:07:28,561 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:07:28,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:07:28,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1598941202, now seen corresponding path program 1 times [2022-11-20 21:07:28,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:07:28,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705335255] [2022-11-20 21:07:28,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:07:28,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:07:28,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:07:28,644 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 21:07:28,645 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:07:28,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705335255] [2022-11-20 21:07:28,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705335255] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:07:28,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:07:28,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 21:07:28,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133875525] [2022-11-20 21:07:28,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:07:28,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 21:07:28,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:07:28,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 21:07:28,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:07:28,647 INFO L87 Difference]: Start difference. First operand 231 states and 278 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-20 21:07:28,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:07:28,731 INFO L93 Difference]: Finished difference Result 464 states and 572 transitions. [2022-11-20 21:07:28,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 21:07:28,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 47 [2022-11-20 21:07:28,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:07:28,733 INFO L225 Difference]: With dead ends: 464 [2022-11-20 21:07:28,733 INFO L226 Difference]: Without dead ends: 198 [2022-11-20 21:07:28,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:07:28,736 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 17 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 21:07:28,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 84 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 21:07:28,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-11-20 21:07:28,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2022-11-20 21:07:28,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 132 states have (on average 1.1818181818181819) internal successors, (156), 146 states have internal predecessors, (156), 33 states have call successors, (33), 30 states have call predecessors, (33), 32 states have return successors, (44), 32 states have call predecessors, (44), 33 states have call successors, (44) [2022-11-20 21:07:28,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 233 transitions. [2022-11-20 21:07:28,768 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 233 transitions. Word has length 47 [2022-11-20 21:07:28,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:07:28,768 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 233 transitions. [2022-11-20 21:07:28,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-20 21:07:28,769 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 233 transitions. [2022-11-20 21:07:28,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-20 21:07:28,770 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:07:28,771 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:07:28,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 21:07:28,771 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:07:28,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:07:28,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1315798111, now seen corresponding path program 1 times [2022-11-20 21:07:28,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:07:28,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461802496] [2022-11-20 21:07:28,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:07:28,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:07:28,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:07:28,992 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 21:07:28,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:07:28,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461802496] [2022-11-20 21:07:28,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461802496] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:07:28,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:07:28,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 21:07:28,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529468286] [2022-11-20 21:07:28,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:07:28,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 21:07:28,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:07:28,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 21:07:28,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-20 21:07:28,995 INFO L87 Difference]: Start difference. First operand 198 states and 233 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-20 21:07:29,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:07:29,195 INFO L93 Difference]: Finished difference Result 341 states and 406 transitions. [2022-11-20 21:07:29,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 21:07:29,196 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 53 [2022-11-20 21:07:29,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:07:29,198 INFO L225 Difference]: With dead ends: 341 [2022-11-20 21:07:29,198 INFO L226 Difference]: Without dead ends: 210 [2022-11-20 21:07:29,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-11-20 21:07:29,199 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 91 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 21:07:29,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 106 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 21:07:29,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-11-20 21:07:29,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 198. [2022-11-20 21:07:29,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 132 states have (on average 1.1742424242424243) internal successors, (155), 146 states have internal predecessors, (155), 33 states have call successors, (33), 30 states have call predecessors, (33), 32 states have return successors, (44), 32 states have call predecessors, (44), 33 states have call successors, (44) [2022-11-20 21:07:29,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 232 transitions. [2022-11-20 21:07:29,230 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 232 transitions. Word has length 53 [2022-11-20 21:07:29,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:07:29,230 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 232 transitions. [2022-11-20 21:07:29,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-20 21:07:29,231 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 232 transitions. [2022-11-20 21:07:29,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-20 21:07:29,232 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:07:29,232 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:07:29,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 21:07:29,233 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:07:29,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:07:29,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1457575136, now seen corresponding path program 1 times [2022-11-20 21:07:29,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:07:29,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414848406] [2022-11-20 21:07:29,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:07:29,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:07:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:07:29,752 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 21:07:29,752 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:07:29,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414848406] [2022-11-20 21:07:29,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414848406] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 21:07:29,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761259242] [2022-11-20 21:07:29,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:07:29,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:07:29,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f51bff6-2547-49c3-997d-7f88a126504e/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:07:29,757 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f51bff6-2547-49c3-997d-7f88a126504e/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 21:07:29,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f51bff6-2547-49c3-997d-7f88a126504e/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 21:07:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:07:29,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-20 21:07:29,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:07:30,576 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 21:07:30,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 21:07:31,075 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-20 21:07:31,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761259242] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 21:07:31,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1320715357] [2022-11-20 21:07:31,097 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2022-11-20 21:07:31,097 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 21:07:31,100 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 21:07:31,106 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 21:07:31,107 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 21:07:37,114 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 33 for LOIs [2022-11-20 21:07:37,120 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 55 for LOIs [2022-11-20 21:07:37,618 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 43 for LOIs [2022-11-20 21:07:37,624 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 30 for LOIs [2022-11-20 21:07:37,627 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 21:07:42,663 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4785#(and (<= 0 |timeShift_isHighWaterLevel_~retValue_acc~6#1|) (<= |timeShift_isHighWaterLevel_#res#1| 1) (<= 0 |timeShift_isHighWaterLevel_#res#1|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) (<= 0 |timeShift_isHighWaterSensorDry_~retValue_acc~9#1|) (= |timeShift_getWaterLevel_~retValue_acc~8#1| ~waterLevel~0) (<= ~pumpRunning~0 1) (<= 0 |timeShift_processEnvironment_~tmp~5#1|) (<= |timeShift_isHighWaterSensorDry_#res#1| 1) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~8#1| 2)) (= ~methaneLevelCritical~0 0) (<= 0 |old(~switchedOnBeforeTS~0)|) (= ~head~0.offset 0) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~8#1| |timeShift_getWaterLevel_#res#1|) (<= 0 |timeShift_isHighWaterSensorDry_#res#1|) (<= |old(~switchedOnBeforeTS~0)| 0) (= |old(~pumpRunning~0)| 0) (<= |timeShift_isHighWaterSensorDry_~retValue_acc~9#1| 1) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (<= 0 |timeShift_isHighWaterLevel_~tmp___0~1#1|) (<= 0 (+ 2147483648 |timeShift_getWaterLevel_#res#1|)) (<= |timeShift_processEnvironment_~tmp~5#1| 1) (<= 0 ~pumpRunning~0) (= ~head~0.base 0) (<= |timeShift_isHighWaterLevel_~retValue_acc~6#1| 1) (= |#NULL.offset| 0) (<= |timeShift_isHighWaterLevel_~tmp~7#1| 1) (<= |timeShift_isHighWaterLevel_~tmp___0~1#1| 1) (<= 0 |timeShift_isHighWaterLevel_~tmp~7#1|) (= ~switchedOnBeforeTS~0 0) (<= |timeShift_getWaterLevel_~retValue_acc~8#1| 2147483647) (<= 0 |#StackHeapBarrier|) (= |timeShift_getWaterLevel_~retValue_acc~8#1| |timeShift_getWaterLevel_#res#1|) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-20 21:07:42,663 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-20 21:07:42,663 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 21:07:42,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 10] total 22 [2022-11-20 21:07:42,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115485022] [2022-11-20 21:07:42,664 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 21:07:42,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-20 21:07:42,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:07:42,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-20 21:07:42,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=1989, Unknown=0, NotChecked=0, Total=2256 [2022-11-20 21:07:42,666 INFO L87 Difference]: Start difference. First operand 198 states and 232 transitions. Second operand has 22 states, 20 states have (on average 4.55) internal successors, (91), 22 states have internal predecessors, (91), 8 states have call successors, (22), 7 states have call predecessors, (22), 8 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2022-11-20 21:07:44,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:07:44,329 INFO L93 Difference]: Finished difference Result 409 states and 500 transitions. [2022-11-20 21:07:44,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-20 21:07:44,330 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 4.55) internal successors, (91), 22 states have internal predecessors, (91), 8 states have call successors, (22), 7 states have call predecessors, (22), 8 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) Word has length 58 [2022-11-20 21:07:44,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:07:44,331 INFO L225 Difference]: With dead ends: 409 [2022-11-20 21:07:44,331 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 21:07:44,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 137 SyntacticMatches, 8 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1760 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=719, Invalid=4683, Unknown=0, NotChecked=0, Total=5402 [2022-11-20 21:07:44,334 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 495 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 21:07:44,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 287 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 21:07:44,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 21:07:44,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 21:07:44,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 21:07:44,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 21:07:44,335 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2022-11-20 21:07:44,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:07:44,336 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 21:07:44,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 4.55) internal successors, (91), 22 states have internal predecessors, (91), 8 states have call successors, (22), 7 states have call predecessors, (22), 8 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2022-11-20 21:07:44,336 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 21:07:44,336 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 21:07:44,339 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 21:07:44,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f51bff6-2547-49c3-997d-7f88a126504e/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 21:07:44,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f51bff6-2547-49c3-997d-7f88a126504e/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-20 21:07:44,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 21:07:48,325 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 629 635) no Hoare annotation was computed. [2022-11-20 21:07:48,326 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 629 635) the Hoare annotation is: true [2022-11-20 21:07:48,326 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 814 825) the Hoare annotation is: true [2022-11-20 21:07:48,326 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 814 825) no Hoare annotation was computed. [2022-11-20 21:07:48,326 INFO L899 garLoopResultBuilder]: For program point L609-2(lines 605 627) no Hoare annotation was computed. [2022-11-20 21:07:48,327 INFO L899 garLoopResultBuilder]: For program point L915(lines 915 921) no Hoare annotation was computed. [2022-11-20 21:07:48,327 INFO L895 garLoopResultBuilder]: At program point L651(line 651) the Hoare annotation is: (let ((.cse0 (and (= ~pumpRunning~0 0) (<= ~waterLevel~0 1) (= |timeShift_processEnvironment_~tmp~5#1| 0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)))) (and (or (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 (= |old(~switchedOnBeforeTS~0)| 0)) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< |old(~waterLevel~0)| 3))) (not (= 0 ~systemActive~0)))) [2022-11-20 21:07:48,327 INFO L895 garLoopResultBuilder]: At program point L656(line 656) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse2 (not (< |old(~waterLevel~0)| 3)))) (and (or (and .cse0 (<= ~waterLevel~0 1) .cse1) (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or (not (= |old(~pumpRunning~0)| 0)) .cse2) (or (and .cse0 (or (not (< 0 ~waterLevel~0)) (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|)) (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse1) .cse2 (= |old(~switchedOnBeforeTS~0)| 0)) (not (= 0 ~systemActive~0)))) [2022-11-20 21:07:48,328 INFO L895 garLoopResultBuilder]: At program point L912(line 912) the Hoare annotation is: (let ((.cse0 (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~8#1| |old(~waterLevel~0)|)) (.cse1 (<= ~waterLevel~0 1)) (.cse13 (= 0 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse12 (= ~pumpRunning~0 0))) (let ((.cse8 (not .cse12)) (.cse3 (and .cse13 .cse2)) (.cse11 (not .cse13)) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (<= 2 |old(~waterLevel~0)|))) (.cse6 (not (<= |old(~waterLevel~0)| 1))) (.cse9 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (and .cse12 .cse0 .cse1 (= |timeShift_processEnvironment_~tmp~5#1| 0) (= |old(~waterLevel~0)| ~waterLevel~0) .cse2)) (.cse10 (and .cse12 .cse13 .cse2))) (and (or (and .cse0 .cse1 .cse2) .cse3 .cse4 .cse5) (or .cse6 .cse7 (and .cse8 (not (< 0 ~waterLevel~0)) .cse0 (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse2) .cse3 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse9 .cse10 .cse11) (or .cse8 (and (<= 2 ~waterLevel~0) (<= ~waterLevel~0 2)) .cse4 .cse5) (or .cse3 .cse11) (or .cse9 .cse10 .cse4 .cse5) (or .cse6 .cse9 .cse1) (or .cse6 .cse9 .cse7 .cse10)))) [2022-11-20 21:07:48,328 INFO L895 garLoopResultBuilder]: At program point L656-1(lines 637 661) the Hoare annotation is: (let ((.cse8 (<= 2 |old(~waterLevel~0)|)) (.cse3 (<= ~waterLevel~0 1)) (.cse9 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse10 (= ~pumpRunning~0 0))) (let ((.cse2 (not .cse10)) (.cse1 (and .cse10 .cse3 (= |timeShift_processEnvironment_~tmp~5#1| 0) .cse9 .cse4)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (and (= |timeShift_processEnvironment_~tmp~5#1| 1) .cse8 .cse9 (< ~waterLevel~0 3))) (.cse6 (not (<= |old(~waterLevel~0)| 2))) (.cse7 (not .cse8))) (and (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1) (or (and .cse2 .cse3 .cse4) .cse5 .cse6 .cse7) (or (and .cse2 (or (not (< 0 ~waterLevel~0)) (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|)) (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse4) .cse5 .cse1 (not (< |old(~waterLevel~0)| 3)) (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse0 .cse5 .cse6 .cse7) (not (= 0 ~systemActive~0))))) [2022-11-20 21:07:48,328 INFO L899 garLoopResultBuilder]: For program point L912-1(line 912) no Hoare annotation was computed. [2022-11-20 21:07:48,329 INFO L895 garLoopResultBuilder]: At program point L971(line 971) the Hoare annotation is: (and (or (not (= |old(~pumpRunning~0)| 0)) (not (< |old(~waterLevel~0)| 3))) (or (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (not (= 0 ~systemActive~0)) (or (not (<= |old(~waterLevel~0)| 1)) (= |old(~switchedOnBeforeTS~0)| 0))) [2022-11-20 21:07:48,329 INFO L895 garLoopResultBuilder]: At program point L616-1(lines 616 622) the Hoare annotation is: (let ((.cse9 (<= ~waterLevel~0 1)) (.cse11 (= |timeShift_processEnvironment_~tmp~5#1| 1)) (.cse13 (<= 2 |old(~waterLevel~0)|)) (.cse12 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse10 (= 0 ~systemActive~0)) (.cse5 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse14 (= ~pumpRunning~0 0))) (let ((.cse4 (not .cse14)) (.cse7 (and .cse10 .cse5)) (.cse2 (not .cse10)) (.cse3 (and .cse11 .cse13 .cse12)) (.cse1 (and .cse14 .cse10 .cse5)) (.cse6 (and .cse14 .cse9 (= |timeShift_processEnvironment_~tmp~5#1| 0) .cse12 .cse5)) (.cse8 (not (< |old(~waterLevel~0)| 3))) (.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 (and .cse4 (or (not (< 0 ~waterLevel~0)) (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|)) (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse5) .cse6 .cse7 .cse8 (= |old(~switchedOnBeforeTS~0)| 0)) (or (and .cse4 .cse9 .cse5) (and (or .cse4 (and (<= 2 ~waterLevel~0) (<= ~waterLevel~0 2))) .cse10) (and .cse11 .cse12) (not (<= |old(~waterLevel~0)| 2)) (not .cse13)) (or .cse7 .cse2) (or .cse0 .cse3 .cse1 .cse6 .cse8) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse9)))) [2022-11-20 21:07:48,329 INFO L895 garLoopResultBuilder]: At program point L645(lines 645 653) the Hoare annotation is: (let ((.cse2 (= |timeShift_processEnvironment_~tmp~5#1| 1)) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse0 (and (let ((.cse6 (< ~waterLevel~0 2))) (or (and (= |timeShift_processEnvironment_~tmp~5#1| 0) .cse6) (and .cse2 (not .cse6)))) .cse3 .cse4 .cse5)) (.cse1 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 (= |old(~switchedOnBeforeTS~0)| 0)) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or (and .cse2 .cse3 .cse4 .cse5) (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (not (= 0 ~systemActive~0))))) [2022-11-20 21:07:48,330 INFO L895 garLoopResultBuilder]: At program point L897(line 897) the Hoare annotation is: (let ((.cse0 (not (= ~switchedOnBeforeTS~0 0))) (.cse5 (not (= 0 ~systemActive~0))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~pumpRunning~0 0)) (.cse1 (not (< |old(~waterLevel~0)| 3))) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (= |old(~switchedOnBeforeTS~0)| 0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5) (or .cse6 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse6 .cse5) (or .cse0 .cse5 .cse2) (or .cse3 (and .cse4 .cse6) .cse1) (or (not (<= |old(~waterLevel~0)| 1)) .cse6 .cse2))) [2022-11-20 21:07:48,330 INFO L895 garLoopResultBuilder]: At program point L641(lines 641 658) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse1 (<= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse2 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (or (not .cse4) .cse1)) (.cse5 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse6 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or .cse0 .cse1 (not (< |old(~waterLevel~0)| 3))) (or .cse2 (and .cse3 (or .cse4 (not (< 0 ~waterLevel~0))) .cse5 .cse6) (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse2 .cse0 (and .cse4 .cse5 .cse6)) (or (and (or .cse4 (< ~waterLevel~0 2)) .cse3 .cse5 .cse6) (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (not (= 0 ~systemActive~0))))) [2022-11-20 21:07:48,330 INFO L895 garLoopResultBuilder]: At program point L897-1(line 897) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse4 (not (= 0 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= ~pumpRunning~0 0)) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (and (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__2_#t~ret49#1|) (= |old(~waterLevel~0)| ~waterLevel~0)))) (and (or .cse0 .cse1 .cse2) (or .cse1 .cse3 .cse4) (or .cse0 .cse2 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse2 .cse4) (or .cse1 .cse3 .cse5) (or .cse5 .cse2 (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-20 21:07:48,331 INFO L899 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2022-11-20 21:07:48,331 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 602 628) the Hoare annotation is: (let ((.cse0 (not (= ~switchedOnBeforeTS~0 0))) (.cse5 (not (= 0 ~systemActive~0))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~pumpRunning~0 0)) (.cse1 (not (< |old(~waterLevel~0)| 3))) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (= |old(~switchedOnBeforeTS~0)| 0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5) (or .cse6 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse6 .cse5) (or .cse0 .cse5 .cse2) (or .cse3 (and .cse4 .cse6) .cse1) (or (not (<= |old(~waterLevel~0)| 1)) .cse6 .cse2))) [2022-11-20 21:07:48,331 INFO L899 garLoopResultBuilder]: For program point L910(lines 910 927) no Hoare annotation was computed. [2022-11-20 21:07:48,331 INFO L895 garLoopResultBuilder]: At program point L910-1(lines 902 930) the Hoare annotation is: (let ((.cse13 (<= 2 |old(~waterLevel~0)|)) (.cse2 (= 0 ~systemActive~0)) (.cse5 (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~8#1| |old(~waterLevel~0)|)) (.cse6 (<= ~waterLevel~0 1)) (.cse14 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse15 (= ~pumpRunning~0 0))) (let ((.cse4 (not (= ~switchedOnBeforeTS~0 0))) (.cse8 (not .cse15)) (.cse11 (and (<= |timeShift_processEnvironment_~tmp~5#1| 0) (< 0 (+ |timeShift_processEnvironment_~tmp~5#1| 1)) .cse15 .cse5 .cse6 .cse14)) (.cse12 (and .cse15 .cse2)) (.cse0 (and (= |timeShift_processEnvironment_~tmp~5#1| 1) (< 1 |timeShift___utac_acc__Specification5_spec__3_~tmp~8#1|) .cse14 (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~8#1| 2))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse7 (not .cse13)) (.cse9 (not (<= |old(~waterLevel~0)| 1))) (.cse10 (not (= |old(~pumpRunning~0)| 0)))) (and (let ((.cse1 (or .cse8 (and (<= 2 ~waterLevel~0) (<= ~waterLevel~0 2))))) (or .cse0 (and .cse1 .cse2) .cse3 (and .cse4 .cse5 .cse6 .cse1) .cse7)) (or .cse9 .cse10 .cse11 .cse12) (or .cse13 (and .cse4 .cse8 (not (< 0 ~waterLevel~0)) .cse5 (<= ~waterLevel~0 |old(~waterLevel~0)|)) .cse2 .cse11 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse10 (not .cse2) .cse12) (or .cse10 .cse0 .cse2 .cse3 .cse7) (or .cse9 .cse10 .cse6)))) [2022-11-20 21:07:48,332 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 602 628) no Hoare annotation was computed. [2022-11-20 21:07:48,332 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 971) no Hoare annotation was computed. [2022-11-20 21:07:48,332 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 418 447) no Hoare annotation was computed. [2022-11-20 21:07:48,332 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 418 447) the Hoare annotation is: true [2022-11-20 21:07:48,332 INFO L902 garLoopResultBuilder]: At program point L443(lines 418 447) the Hoare annotation is: true [2022-11-20 21:07:48,332 INFO L899 garLoopResultBuilder]: For program point L439(line 439) no Hoare annotation was computed. [2022-11-20 21:07:48,332 INFO L899 garLoopResultBuilder]: For program point L432(lines 432 436) no Hoare annotation was computed. [2022-11-20 21:07:48,332 INFO L902 garLoopResultBuilder]: At program point L432-1(lines 432 436) the Hoare annotation is: true [2022-11-20 21:07:48,332 INFO L902 garLoopResultBuilder]: At program point L428-2(lines 428 442) the Hoare annotation is: true [2022-11-20 21:07:48,333 INFO L902 garLoopResultBuilder]: At program point L424(line 424) the Hoare annotation is: true [2022-11-20 21:07:48,333 INFO L899 garLoopResultBuilder]: For program point L424-1(line 424) no Hoare annotation was computed. [2022-11-20 21:07:48,333 INFO L899 garLoopResultBuilder]: For program point L543(lines 543 549) no Hoare annotation was computed. [2022-11-20 21:07:48,333 INFO L899 garLoopResultBuilder]: For program point L543-1(lines 543 549) no Hoare annotation was computed. [2022-11-20 21:07:48,333 INFO L895 garLoopResultBuilder]: At program point L581(lines 532 582) the Hoare annotation is: false [2022-11-20 21:07:48,333 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-20 21:07:48,333 INFO L895 garLoopResultBuilder]: At program point L569-2(lines 563 576) the Hoare annotation is: (let ((.cse1 (<= ~waterLevel~0 1)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 (<= ~waterLevel~0 2)) (and .cse0 (= 0 ~systemActive~0)) (and (= ~pumpRunning~0 0) .cse1 .cse0) (and (not (= ~switchedOnBeforeTS~0 0)) .cse1 .cse0))) [2022-11-20 21:07:48,333 INFO L899 garLoopResultBuilder]: For program point L553(lines 553 559) no Hoare annotation was computed. [2022-11-20 21:07:48,334 INFO L895 garLoopResultBuilder]: At program point L553-1(lines 553 559) the Hoare annotation is: (let ((.cse1 (<= ~waterLevel~0 1)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 (<= ~waterLevel~0 2)) (and .cse0 (= 0 ~systemActive~0)) (and (= ~pumpRunning~0 0) .cse1 .cse0) (and (not (= ~switchedOnBeforeTS~0 0)) .cse1 .cse0))) [2022-11-20 21:07:48,334 INFO L895 garLoopResultBuilder]: At program point L578(lines 533 580) the Hoare annotation is: (let ((.cse1 (<= ~waterLevel~0 1)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 (<= ~waterLevel~0 2)) (and .cse0 (= 0 ~systemActive~0)) (and (= ~pumpRunning~0 0) .cse1 .cse0) (and (not (= ~switchedOnBeforeTS~0 0)) .cse1 .cse0))) [2022-11-20 21:07:48,334 INFO L895 garLoopResultBuilder]: At program point L545(line 545) the Hoare annotation is: (let ((.cse1 (<= ~waterLevel~0 1)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 (<= ~waterLevel~0 2)) (and .cse0 (= 0 ~systemActive~0)) (and (= ~pumpRunning~0 0) .cse1 .cse0) (and (not (= ~switchedOnBeforeTS~0 0)) .cse1 .cse0))) [2022-11-20 21:07:48,334 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 21:07:48,334 INFO L895 garLoopResultBuilder]: At program point L508(lines 508 515) the Hoare annotation is: (and (= ~pumpRunning~0 0) (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_main_~tmp~3#1| 1) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) [2022-11-20 21:07:48,334 INFO L902 garLoopResultBuilder]: At program point L508-2(lines 508 515) the Hoare annotation is: true [2022-11-20 21:07:48,334 INFO L899 garLoopResultBuilder]: For program point L534(lines 533 580) no Hoare annotation was computed. [2022-11-20 21:07:48,335 INFO L895 garLoopResultBuilder]: At program point L555(line 555) the Hoare annotation is: (let ((.cse1 (<= ~waterLevel~0 1)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 (<= ~waterLevel~0 2)) (and .cse0 (= 0 ~systemActive~0)) (and (= ~pumpRunning~0 0) .cse1 .cse0) (and (not (= ~switchedOnBeforeTS~0 0)) .cse1 .cse0))) [2022-11-20 21:07:48,335 INFO L902 garLoopResultBuilder]: At program point L584(lines 523 588) the Hoare annotation is: true [2022-11-20 21:07:48,335 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 802 813) no Hoare annotation was computed. [2022-11-20 21:07:48,335 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 802 813) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 (= ~switchedOnBeforeTS~0 0)) (or .cse0 (not (= ~pumpRunning~0 0)) .cse1) (or .cse1 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse1 (not (= 0 ~systemActive~0))))) [2022-11-20 21:07:48,335 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 707 715) no Hoare annotation was computed. [2022-11-20 21:07:48,335 INFO L902 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 707 715) the Hoare annotation is: true [2022-11-20 21:07:48,338 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:07:48,339 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 21:07:48,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:07:48 BoogieIcfgContainer [2022-11-20 21:07:48,369 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 21:07:48,369 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 21:07:48,369 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 21:07:48,370 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 21:07:48,370 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:07:25" (3/4) ... [2022-11-20 21:07:48,373 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 21:07:48,378 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-20 21:07:48,379 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-20 21:07:48,379 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-20 21:07:48,379 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-20 21:07:48,379 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-20 21:07:48,379 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2022-11-20 21:07:48,386 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 51 nodes and edges [2022-11-20 21:07:48,386 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-20 21:07:48,387 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-20 21:07:48,387 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 21:07:48,388 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 21:07:48,413 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && ((!(\old(waterLevel) <= 1) || (pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel)) || \old(switchedOnBeforeTS) == 0)) && ((pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) || !(0 == systemActive))) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(waterLevel) <= 2))) && ((!(\old(waterLevel) <= 2) || (pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) [2022-11-20 21:07:48,414 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && 0 == systemActive) && pumpRunning == switchedOnBeforeTS)) || !(0 == systemActive)) && (((((((tmp == 1 && 2 <= \old(waterLevel)) && \old(waterLevel) == waterLevel) || (((!(pumpRunning == 0) && (!(0 < waterLevel) || waterLevel + 1 <= \old(waterLevel))) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS)) || ((((pumpRunning == 0 && waterLevel <= 1) && tmp == 0) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || (0 == systemActive && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) < 3)) || \old(switchedOnBeforeTS) == 0)) && ((((((!(pumpRunning == 0) && waterLevel <= 1) && pumpRunning == switchedOnBeforeTS) || ((!(pumpRunning == 0) || (2 <= waterLevel && waterLevel <= 2)) && 0 == systemActive)) || (tmp == 1 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((0 == systemActive && pumpRunning == switchedOnBeforeTS) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || ((tmp == 1 && 2 <= \old(waterLevel)) && \old(waterLevel) == waterLevel)) || ((pumpRunning == 0 && 0 == systemActive) && pumpRunning == switchedOnBeforeTS)) || ((((pumpRunning == 0 && waterLevel <= 1) && tmp == 0) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) < 3))) && ((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || waterLevel <= 1) [2022-11-20 21:07:48,414 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((tmp == 1 && 1 < tmp) && \old(waterLevel) == waterLevel) && tmp <= 2) || ((!(pumpRunning == 0) || (2 <= waterLevel && waterLevel <= 2)) && 0 == systemActive)) || !(\old(waterLevel) <= 2)) || (((!(switchedOnBeforeTS == 0) && tmp <= \old(waterLevel)) && waterLevel <= 1) && (!(pumpRunning == 0) || (2 <= waterLevel && waterLevel <= 2)))) || !(2 <= \old(waterLevel))) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (((((tmp <= 0 && 0 < tmp + 1) && pumpRunning == 0) && tmp <= \old(waterLevel)) && waterLevel <= 1) && \old(waterLevel) == waterLevel)) || (pumpRunning == 0 && 0 == systemActive))) && ((((2 <= \old(waterLevel) || ((((!(switchedOnBeforeTS == 0) && !(pumpRunning == 0)) && !(0 < waterLevel)) && tmp <= \old(waterLevel)) && waterLevel <= \old(waterLevel))) || 0 == systemActive) || (((((tmp <= 0 && 0 < tmp + 1) && pumpRunning == 0) && tmp <= \old(waterLevel)) && waterLevel <= 1) && \old(waterLevel) == waterLevel)) || \old(switchedOnBeforeTS) == 0)) && ((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || (pumpRunning == 0 && 0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || (((tmp == 1 && 1 < tmp) && \old(waterLevel) == waterLevel) && tmp <= 2)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || waterLevel <= 1) [2022-11-20 21:07:48,415 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || \old(waterLevel) <= waterLevel) || !(\old(waterLevel) < 3)) && ((!(\old(waterLevel) <= 1) || ((((!(pumpRunning == 0) || \old(waterLevel) <= waterLevel) && (pumpRunning == 0 || !(0 < waterLevel))) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0)) && ((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || ((pumpRunning == 0 && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS))) && ((((((pumpRunning == 0 || waterLevel < 2) && (!(pumpRunning == 0) || \old(waterLevel) <= waterLevel)) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && !(0 == systemActive) [2022-11-20 21:07:48,415 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) < 3)) && (!(\old(waterLevel) <= 2) || !(2 <= \old(waterLevel)))) && !(0 == systemActive)) && (!(\old(waterLevel) <= 1) || \old(switchedOnBeforeTS) == 0) [2022-11-20 21:07:48,415 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || ((((pumpRunning == 0 && waterLevel <= 1) && tmp == 0) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) && (((((!(pumpRunning == 0) && waterLevel <= 1) && pumpRunning == switchedOnBeforeTS) || (((tmp == 1 && 2 <= \old(waterLevel)) && \old(waterLevel) == waterLevel) && waterLevel < 3)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((((((!(pumpRunning == 0) && (!(0 < waterLevel) || waterLevel + 1 <= \old(waterLevel))) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS) || (((tmp == 1 && 2 <= \old(waterLevel)) && \old(waterLevel) == waterLevel) && waterLevel < 3)) || ((((pumpRunning == 0 && waterLevel <= 1) && tmp == 0) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) < 3)) || \old(switchedOnBeforeTS) == 0)) && (((!(\old(pumpRunning) == 0) || (((tmp == 1 && 2 <= \old(waterLevel)) && \old(waterLevel) == waterLevel) && waterLevel < 3)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && !(0 == systemActive) [2022-11-20 21:07:48,416 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((tmp == 0 && waterLevel < 2) || (tmp == 1 && !(waterLevel < 2))) && pumpRunning == 0) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) < 3)) || \old(switchedOnBeforeTS) == 0) && ((!(\old(pumpRunning) == 0) || (((((tmp == 0 && waterLevel < 2) || (tmp == 1 && !(waterLevel < 2))) && pumpRunning == 0) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) < 3))) && (((((tmp == 1 && pumpRunning == 0) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && !(0 == systemActive) [2022-11-20 21:07:48,441 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f51bff6-2547-49c3-997d-7f88a126504e/bin/utaipan-6cKwYrpEi9/witness.graphml [2022-11-20 21:07:48,441 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 21:07:48,442 INFO L158 Benchmark]: Toolchain (without parser) took 24730.64ms. Allocated memory was 167.8MB in the beginning and 499.1MB in the end (delta: 331.4MB). Free memory was 131.8MB in the beginning and 328.4MB in the end (delta: -196.6MB). Peak memory consumption was 134.7MB. Max. memory is 16.1GB. [2022-11-20 21:07:48,442 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 130.0MB. Free memory is still 98.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 21:07:48,443 INFO L158 Benchmark]: CACSL2BoogieTranslator took 499.24ms. Allocated memory is still 167.8MB. Free memory was 131.8MB in the beginning and 125.6MB in the end (delta: 6.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-20 21:07:48,443 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.81ms. Allocated memory is still 167.8MB. Free memory was 125.6MB in the beginning and 123.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 21:07:48,443 INFO L158 Benchmark]: Boogie Preprocessor took 41.60ms. Allocated memory is still 167.8MB. Free memory was 123.5MB in the beginning and 122.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 21:07:48,444 INFO L158 Benchmark]: RCFGBuilder took 704.59ms. Allocated memory is still 167.8MB. Free memory was 122.1MB in the beginning and 94.9MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-20 21:07:48,444 INFO L158 Benchmark]: TraceAbstraction took 23359.55ms. Allocated memory was 167.8MB in the beginning and 499.1MB in the end (delta: 331.4MB). Free memory was 94.2MB in the beginning and 333.7MB in the end (delta: -239.5MB). Peak memory consumption was 260.0MB. Max. memory is 16.1GB. [2022-11-20 21:07:48,444 INFO L158 Benchmark]: Witness Printer took 72.36ms. Allocated memory is still 499.1MB. Free memory was 333.7MB in the beginning and 328.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 21:07:48,446 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 130.0MB. Free memory is still 98.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 499.24ms. Allocated memory is still 167.8MB. Free memory was 131.8MB in the beginning and 125.6MB in the end (delta: 6.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.81ms. Allocated memory is still 167.8MB. Free memory was 125.6MB in the beginning and 123.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.60ms. Allocated memory is still 167.8MB. Free memory was 123.5MB in the beginning and 122.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 704.59ms. Allocated memory is still 167.8MB. Free memory was 122.1MB in the beginning and 94.9MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 23359.55ms. Allocated memory was 167.8MB in the beginning and 499.1MB in the end (delta: 331.4MB). Free memory was 94.2MB in the beginning and 333.7MB in the end (delta: -239.5MB). Peak memory consumption was 260.0MB. Max. memory is 16.1GB. * Witness Printer took 72.36ms. Allocated memory is still 499.1MB. Free memory was 333.7MB in the beginning and 328.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 971]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 23.2s, OverallIterations: 8, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 942 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 923 mSDsluCounter, 1480 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1084 mSDsCounter, 458 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1622 IncrementalHoareTripleChecker+Invalid, 2080 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 458 mSolverCounterUnsat, 396 mSDtfsCounter, 1622 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 306 GetRequests, 162 SyntacticMatches, 8 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1913 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=231occurred in iteration=5, InterpolantAutomatonStates: 101, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 145 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 31 LocationsWithAnnotation, 618 PreInvPairs, 814 NumberOfFragments, 1620 HoareAnnotationTreeSize, 618 FomulaSimplifications, 4098 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 31 FomulaSimplificationsInter, 10611 FormulaSimplificationTreeSizeReductionInter, 3.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 340 NumberOfCodeBlocks, 340 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 388 ConstructedInterpolants, 0 QuantifiedInterpolants, 1286 SizeOfPredicates, 19 NumberOfNonLiveVariables, 313 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 116/144 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: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 897]: Loop Invariant Derived loop invariant: ((((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && ((!(\old(waterLevel) <= 1) || (pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel)) || \old(switchedOnBeforeTS) == 0)) && ((pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) || !(0 == systemActive))) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(waterLevel) <= 2))) && ((!(\old(waterLevel) <= 2) || (pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 641]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || \old(waterLevel) <= waterLevel) || !(\old(waterLevel) < 3)) && ((!(\old(waterLevel) <= 1) || ((((!(pumpRunning == 0) || \old(waterLevel) <= waterLevel) && (pumpRunning == 0 || !(0 < waterLevel))) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0)) && ((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || ((pumpRunning == 0 && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS))) && ((((((pumpRunning == 0 || waterLevel < 2) && (!(pumpRunning == 0) || \old(waterLevel) <= waterLevel)) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && !(0 == systemActive) - InvariantResult [Line: 553]: Loop Invariant Derived loop invariant: ((((2 <= waterLevel && splverifierCounter == 0) && waterLevel <= 2) || (splverifierCounter == 0 && 0 == systemActive)) || ((pumpRunning == 0 && waterLevel <= 1) && splverifierCounter == 0)) || ((!(switchedOnBeforeTS == 0) && waterLevel <= 1) && splverifierCounter == 0) - InvariantResult [Line: 902]: Loop Invariant Derived loop invariant: (((((((((((tmp == 1 && 1 < tmp) && \old(waterLevel) == waterLevel) && tmp <= 2) || ((!(pumpRunning == 0) || (2 <= waterLevel && waterLevel <= 2)) && 0 == systemActive)) || !(\old(waterLevel) <= 2)) || (((!(switchedOnBeforeTS == 0) && tmp <= \old(waterLevel)) && waterLevel <= 1) && (!(pumpRunning == 0) || (2 <= waterLevel && waterLevel <= 2)))) || !(2 <= \old(waterLevel))) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (((((tmp <= 0 && 0 < tmp + 1) && pumpRunning == 0) && tmp <= \old(waterLevel)) && waterLevel <= 1) && \old(waterLevel) == waterLevel)) || (pumpRunning == 0 && 0 == systemActive))) && ((((2 <= \old(waterLevel) || ((((!(switchedOnBeforeTS == 0) && !(pumpRunning == 0)) && !(0 < waterLevel)) && tmp <= \old(waterLevel)) && waterLevel <= \old(waterLevel))) || 0 == systemActive) || (((((tmp <= 0 && 0 < tmp + 1) && pumpRunning == 0) && tmp <= \old(waterLevel)) && waterLevel <= 1) && \old(waterLevel) == waterLevel)) || \old(switchedOnBeforeTS) == 0)) && ((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || (pumpRunning == 0 && 0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || (((tmp == 1 && 1 < tmp) && \old(waterLevel) == waterLevel) && tmp <= 2)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || waterLevel <= 1) - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 428]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 971]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) < 3)) && (!(\old(waterLevel) <= 2) || !(2 <= \old(waterLevel)))) && !(0 == systemActive)) && (!(\old(waterLevel) <= 1) || \old(switchedOnBeforeTS) == 0) - InvariantResult [Line: 533]: Loop Invariant Derived loop invariant: ((((2 <= waterLevel && splverifierCounter == 0) && waterLevel <= 2) || (splverifierCounter == 0 && 0 == systemActive)) || ((pumpRunning == 0 && waterLevel <= 1) && splverifierCounter == 0)) || ((!(switchedOnBeforeTS == 0) && waterLevel <= 1) && splverifierCounter == 0) - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && 0 == systemActive) && pumpRunning == switchedOnBeforeTS)) || !(0 == systemActive)) && (((((((tmp == 1 && 2 <= \old(waterLevel)) && \old(waterLevel) == waterLevel) || (((!(pumpRunning == 0) && (!(0 < waterLevel) || waterLevel + 1 <= \old(waterLevel))) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS)) || ((((pumpRunning == 0 && waterLevel <= 1) && tmp == 0) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || (0 == systemActive && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) < 3)) || \old(switchedOnBeforeTS) == 0)) && ((((((!(pumpRunning == 0) && waterLevel <= 1) && pumpRunning == switchedOnBeforeTS) || ((!(pumpRunning == 0) || (2 <= waterLevel && waterLevel <= 2)) && 0 == systemActive)) || (tmp == 1 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((0 == systemActive && pumpRunning == switchedOnBeforeTS) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || ((tmp == 1 && 2 <= \old(waterLevel)) && \old(waterLevel) == waterLevel)) || ((pumpRunning == 0 && 0 == systemActive) && pumpRunning == switchedOnBeforeTS)) || ((((pumpRunning == 0 && waterLevel <= 1) && tmp == 0) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) < 3))) && ((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || waterLevel <= 1) - InvariantResult [Line: 508]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && waterLevel <= 1) && 1 <= waterLevel) && tmp == 1) && pumpRunning == switchedOnBeforeTS - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 645]: Loop Invariant Derived loop invariant: (((((((((tmp == 0 && waterLevel < 2) || (tmp == 1 && !(waterLevel < 2))) && pumpRunning == 0) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) < 3)) || \old(switchedOnBeforeTS) == 0) && ((!(\old(pumpRunning) == 0) || (((((tmp == 0 && waterLevel < 2) || (tmp == 1 && !(waterLevel < 2))) && pumpRunning == 0) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) < 3))) && (((((tmp == 1 && pumpRunning == 0) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && !(0 == systemActive) - InvariantResult [Line: 637]: Loop Invariant Derived loop invariant: (((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || ((((pumpRunning == 0 && waterLevel <= 1) && tmp == 0) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) && (((((!(pumpRunning == 0) && waterLevel <= 1) && pumpRunning == switchedOnBeforeTS) || (((tmp == 1 && 2 <= \old(waterLevel)) && \old(waterLevel) == waterLevel) && waterLevel < 3)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((((((!(pumpRunning == 0) && (!(0 < waterLevel) || waterLevel + 1 <= \old(waterLevel))) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS) || (((tmp == 1 && 2 <= \old(waterLevel)) && \old(waterLevel) == waterLevel) && waterLevel < 3)) || ((((pumpRunning == 0 && waterLevel <= 1) && tmp == 0) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) < 3)) || \old(switchedOnBeforeTS) == 0)) && (((!(\old(pumpRunning) == 0) || (((tmp == 1 && 2 <= \old(waterLevel)) && \old(waterLevel) == waterLevel) && waterLevel < 3)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && !(0 == systemActive) - InvariantResult [Line: 508]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-20 21:07:48,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f51bff6-2547-49c3-997d-7f88a126504e/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE