./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e82973d9-d4b5-470b-b326-e8d03142023e/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e82973d9-d4b5-470b-b326-e8d03142023e/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e82973d9-d4b5-470b-b326-e8d03142023e/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e82973d9-d4b5-470b-b326-e8d03142023e/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e82973d9-d4b5-470b-b326-e8d03142023e/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e82973d9-d4b5-470b-b326-e8d03142023e/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d436abf98cab5db4fbcf1977ce5628e2227cd7aa643df1d726e32cf2e71cb81f --- 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-dbf71c6-m [2022-10-17 10:54:27,188 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:54:27,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:54:27,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:54:27,239 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:54:27,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:54:27,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:54:27,251 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:54:27,254 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:54:27,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:54:27,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:54:27,264 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:54:27,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:54:27,267 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:54:27,270 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:54:27,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:54:27,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:54:27,275 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:54:27,277 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:54:27,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:54:27,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:54:27,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:54:27,291 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:54:27,292 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:54:27,303 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:54:27,303 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:54:27,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:54:27,306 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:54:27,307 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:54:27,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:54:27,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:54:27,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:54:27,314 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:54:27,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:54:27,317 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:54:27,317 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:54:27,318 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:54:27,319 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:54:27,319 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:54:27,320 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:54:27,321 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:54:27,323 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e82973d9-d4b5-470b-b326-e8d03142023e/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:54:27,367 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:54:27,368 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:54:27,369 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:54:27,369 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:54:27,370 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:54:27,370 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:54:27,371 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:54:27,372 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:54:27,372 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:54:27,373 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:54:27,374 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:54:27,374 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:54:27,374 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:54:27,375 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:54:27,375 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:54:27,375 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:54:27,376 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:54:27,376 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:54:27,376 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:54:27,377 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:54:27,377 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:54:27,377 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:54:27,378 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:54:27,378 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:54:27,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:54:27,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:54:27,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:54:27,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:54:27,381 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:54:27,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:54:27,382 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:54:27,382 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:54:27,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:54:27,383 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_e82973d9-d4b5-470b-b326-e8d03142023e/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e82973d9-d4b5-470b-b326-e8d03142023e/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d436abf98cab5db4fbcf1977ce5628e2227cd7aa643df1d726e32cf2e71cb81f [2022-10-17 10:54:27,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:54:27,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:54:27,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:54:27,741 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:54:27,742 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:54:27,743 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e82973d9-d4b5-470b-b326-e8d03142023e/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2022-10-17 10:54:27,803 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e82973d9-d4b5-470b-b326-e8d03142023e/bin/uautomizer-J5u9QxTXDZ/data/e78a74bcd/1e5525f0fda740a9904848e697f5013f/FLAG6563f723c [2022-10-17 10:54:28,277 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:54:28,278 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e82973d9-d4b5-470b-b326-e8d03142023e/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2022-10-17 10:54:28,301 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e82973d9-d4b5-470b-b326-e8d03142023e/bin/uautomizer-J5u9QxTXDZ/data/e78a74bcd/1e5525f0fda740a9904848e697f5013f/FLAG6563f723c [2022-10-17 10:54:28,613 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e82973d9-d4b5-470b-b326-e8d03142023e/bin/uautomizer-J5u9QxTXDZ/data/e78a74bcd/1e5525f0fda740a9904848e697f5013f [2022-10-17 10:54:28,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:54:28,617 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:54:28,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:54:28,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:54:28,622 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:54:28,623 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:54:28" (1/1) ... [2022-10-17 10:54:28,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13e4afa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:54:28, skipping insertion in model container [2022-10-17 10:54:28,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:54:28" (1/1) ... [2022-10-17 10:54:28,631 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:54:28,672 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:54:28,984 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e82973d9-d4b5-470b-b326-e8d03142023e/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c[19022,19035] [2022-10-17 10:54:28,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:54:28,997 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:54:29,068 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e82973d9-d4b5-470b-b326-e8d03142023e/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c[19022,19035] [2022-10-17 10:54:29,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:54:29,098 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:54:29,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:54:29 WrapperNode [2022-10-17 10:54:29,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:54:29,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:54:29,100 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:54:29,100 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:54:29,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:54:29" (1/1) ... [2022-10-17 10:54:29,125 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:54:29" (1/1) ... [2022-10-17 10:54:29,161 INFO L138 Inliner]: procedures = 59, calls = 164, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 288 [2022-10-17 10:54:29,161 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:54:29,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:54:29,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:54:29,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:54:29,171 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:54:29" (1/1) ... [2022-10-17 10:54:29,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:54:29" (1/1) ... [2022-10-17 10:54:29,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:54:29" (1/1) ... [2022-10-17 10:54:29,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:54:29" (1/1) ... [2022-10-17 10:54:29,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:54:29" (1/1) ... [2022-10-17 10:54:29,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:54:29" (1/1) ... [2022-10-17 10:54:29,195 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:54:29" (1/1) ... [2022-10-17 10:54:29,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:54:29" (1/1) ... [2022-10-17 10:54:29,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:54:29,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:54:29,201 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:54:29,202 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:54:29,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:54:29" (1/1) ... [2022-10-17 10:54:29,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:54:29,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e82973d9-d4b5-470b-b326-e8d03142023e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:54:29,235 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e82973d9-d4b5-470b-b326-e8d03142023e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:54:29,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e82973d9-d4b5-470b-b326-e8d03142023e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:54:29,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:54:29,296 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-10-17 10:54:29,296 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-10-17 10:54:29,296 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-10-17 10:54:29,296 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-10-17 10:54:29,297 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-10-17 10:54:29,297 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-10-17 10:54:29,297 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-10-17 10:54:29,297 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-10-17 10:54:29,298 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-10-17 10:54:29,298 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-10-17 10:54:29,298 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-10-17 10:54:29,298 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-10-17 10:54:29,298 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-10-17 10:54:29,299 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-10-17 10:54:29,299 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-10-17 10:54:29,299 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-10-17 10:54:29,299 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-10-17 10:54:29,300 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-10-17 10:54:29,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:54:29,300 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-10-17 10:54:29,300 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-10-17 10:54:29,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:54:29,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:54:29,370 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:54:29,377 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:54:29,875 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:54:29,890 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:54:29,890 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 10:54:29,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:54:29 BoogieIcfgContainer [2022-10-17 10:54:29,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:54:29,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:54:29,896 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:54:29,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:54:29,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:54:28" (1/3) ... [2022-10-17 10:54:29,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a451a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:54:29, skipping insertion in model container [2022-10-17 10:54:29,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:54:29" (2/3) ... [2022-10-17 10:54:29,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a451a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:54:29, skipping insertion in model container [2022-10-17 10:54:29,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:54:29" (3/3) ... [2022-10-17 10:54:29,910 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2022-10-17 10:54:29,929 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:54:29,930 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:54:30,019 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:54:30,036 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6a4e347d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:54:30,036 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:54:30,045 INFO L276 IsEmpty]: Start isEmpty. Operand has 115 states, 84 states have (on average 1.369047619047619) internal successors, (115), 95 states have internal predecessors, (115), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) [2022-10-17 10:54:30,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-17 10:54:30,064 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:54:30,065 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:54:30,065 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:54:30,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:54:30,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1815405350, now seen corresponding path program 1 times [2022-10-17 10:54:30,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:54:30,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561567180] [2022-10-17 10:54:30,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:54:30,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:54:30,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:54:30,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:54:30,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:54:30,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:54:30,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:54:30,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561567180] [2022-10-17 10:54:30,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561567180] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:54:30,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:54:30,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:54:30,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777522500] [2022-10-17 10:54:30,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:54:30,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 10:54:30,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:54:30,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 10:54:30,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:54:30,350 INFO L87 Difference]: Start difference. First operand has 115 states, 84 states have (on average 1.369047619047619) internal successors, (115), 95 states have internal predecessors, (115), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:54:30,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:54:30,421 INFO L93 Difference]: Finished difference Result 222 states and 301 transitions. [2022-10-17 10:54:30,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:54:30,423 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-10-17 10:54:30,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:54:30,439 INFO L225 Difference]: With dead ends: 222 [2022-10-17 10:54:30,439 INFO L226 Difference]: Without dead ends: 106 [2022-10-17 10:54:30,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:54:30,451 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:54:30,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:54:30,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-10-17 10:54:30,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2022-10-17 10:54:30,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 77 states have (on average 1.3116883116883118) internal successors, (101), 87 states have internal predecessors, (101), 19 states have call successors, (19), 10 states have call predecessors, (19), 9 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2022-10-17 10:54:30,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 138 transitions. [2022-10-17 10:54:30,507 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 138 transitions. Word has length 25 [2022-10-17 10:54:30,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:54:30,508 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 138 transitions. [2022-10-17 10:54:30,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:54:30,509 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 138 transitions. [2022-10-17 10:54:30,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-17 10:54:30,512 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:54:30,512 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:54:30,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:54:30,513 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:54:30,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:54:30,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1446667371, now seen corresponding path program 1 times [2022-10-17 10:54:30,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:54:30,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91664101] [2022-10-17 10:54:30,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:54:30,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:54:30,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:54:30,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-17 10:54:30,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:54:30,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:54:30,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:54:30,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91664101] [2022-10-17 10:54:30,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91664101] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:54:30,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:54:30,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:54:30,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346810879] [2022-10-17 10:54:30,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:54:30,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:54:30,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:54:30,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:54:30,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:54:30,757 INFO L87 Difference]: Start difference. First operand 106 states and 138 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:54:30,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:54:30,799 INFO L93 Difference]: Finished difference Result 173 states and 225 transitions. [2022-10-17 10:54:30,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:54:30,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-10-17 10:54:30,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:54:30,807 INFO L225 Difference]: With dead ends: 173 [2022-10-17 10:54:30,808 INFO L226 Difference]: Without dead ends: 97 [2022-10-17 10:54:30,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:54:30,811 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 17 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:54:30,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 228 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:54:30,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-10-17 10:54:30,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2022-10-17 10:54:30,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 71 states have (on average 1.323943661971831) internal successors, (94), 81 states have internal predecessors, (94), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2022-10-17 10:54:30,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 126 transitions. [2022-10-17 10:54:30,842 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 126 transitions. Word has length 26 [2022-10-17 10:54:30,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:54:30,842 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 126 transitions. [2022-10-17 10:54:30,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:54:30,843 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 126 transitions. [2022-10-17 10:54:30,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-17 10:54:30,844 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:54:30,845 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:54:30,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:54:30,845 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:54:30,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:54:30,846 INFO L85 PathProgramCache]: Analyzing trace with hash -752091658, now seen corresponding path program 1 times [2022-10-17 10:54:30,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:54:30,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766433382] [2022-10-17 10:54:30,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:54:30,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:54:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:54:30,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-17 10:54:30,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:54:30,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:54:30,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:54:30,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766433382] [2022-10-17 10:54:30,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766433382] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:54:30,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:54:30,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:54:30,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289434455] [2022-10-17 10:54:30,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:54:30,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:54:30,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:54:30,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:54:30,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:54:30,996 INFO L87 Difference]: Start difference. First operand 97 states and 126 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:54:31,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:54:31,044 INFO L93 Difference]: Finished difference Result 275 states and 363 transitions. [2022-10-17 10:54:31,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:54:31,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-10-17 10:54:31,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:54:31,048 INFO L225 Difference]: With dead ends: 275 [2022-10-17 10:54:31,051 INFO L226 Difference]: Without dead ends: 185 [2022-10-17 10:54:31,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:54:31,058 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 118 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:54:31,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 274 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:54:31,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-10-17 10:54:31,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 182. [2022-10-17 10:54:31,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 131 states have (on average 1.3435114503816794) internal successors, (176), 150 states have internal predecessors, (176), 32 states have call successors, (32), 18 states have call predecessors, (32), 18 states have return successors, (32), 21 states have call predecessors, (32), 32 states have call successors, (32) [2022-10-17 10:54:31,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 240 transitions. [2022-10-17 10:54:31,115 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 240 transitions. Word has length 31 [2022-10-17 10:54:31,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:54:31,115 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 240 transitions. [2022-10-17 10:54:31,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:54:31,116 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 240 transitions. [2022-10-17 10:54:31,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-17 10:54:31,123 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:54:31,124 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:54:31,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:54:31,125 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:54:31,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:54:31,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1994729148, now seen corresponding path program 1 times [2022-10-17 10:54:31,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:54:31,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772067442] [2022-10-17 10:54:31,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:54:31,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:54:31,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:54:31,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-17 10:54:31,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:54:31,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:54:31,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:54:31,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772067442] [2022-10-17 10:54:31,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772067442] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:54:31,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:54:31,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:54:31,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149749504] [2022-10-17 10:54:31,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:54:31,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:54:31,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:54:31,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:54:31,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:54:31,376 INFO L87 Difference]: Start difference. First operand 182 states and 240 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:54:31,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:54:31,500 INFO L93 Difference]: Finished difference Result 526 states and 715 transitions. [2022-10-17 10:54:31,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:54:31,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2022-10-17 10:54:31,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:54:31,510 INFO L225 Difference]: With dead ends: 526 [2022-10-17 10:54:31,510 INFO L226 Difference]: Without dead ends: 351 [2022-10-17 10:54:31,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:54:31,513 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 95 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:54:31,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 522 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:54:31,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-10-17 10:54:31,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 345. [2022-10-17 10:54:31,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 246 states have (on average 1.3252032520325203) internal successors, (326), 281 states have internal predecessors, (326), 64 states have call successors, (64), 36 states have call predecessors, (64), 34 states have return successors, (66), 40 states have call predecessors, (66), 64 states have call successors, (66) [2022-10-17 10:54:31,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 456 transitions. [2022-10-17 10:54:31,560 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 456 transitions. Word has length 34 [2022-10-17 10:54:31,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:54:31,560 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 456 transitions. [2022-10-17 10:54:31,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:54:31,561 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 456 transitions. [2022-10-17 10:54:31,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-17 10:54:31,563 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:54:31,563 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:54:31,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 10:54:31,564 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:54:31,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:54:31,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1105434487, now seen corresponding path program 1 times [2022-10-17 10:54:31,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:54:31,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137218104] [2022-10-17 10:54:31,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:54:31,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:54:31,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:54:31,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:54:31,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:54:31,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:54:31,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:54:31,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137218104] [2022-10-17 10:54:31,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137218104] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:54:31,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:54:31,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:54:31,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430139807] [2022-10-17 10:54:31,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:54:31,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:54:31,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:54:31,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:54:31,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:54:31,726 INFO L87 Difference]: Start difference. First operand 345 states and 456 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:54:31,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:54:31,872 INFO L93 Difference]: Finished difference Result 897 states and 1216 transitions. [2022-10-17 10:54:31,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:54:31,873 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2022-10-17 10:54:31,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:54:31,879 INFO L225 Difference]: With dead ends: 897 [2022-10-17 10:54:31,880 INFO L226 Difference]: Without dead ends: 559 [2022-10-17 10:54:31,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:54:31,891 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 84 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:54:31,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 599 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:54:31,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-10-17 10:54:31,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 547. [2022-10-17 10:54:31,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 398 states have (on average 1.2738693467336684) internal successors, (507), 431 states have internal predecessors, (507), 84 states have call successors, (84), 68 states have call predecessors, (84), 64 states have return successors, (108), 70 states have call predecessors, (108), 84 states have call successors, (108) [2022-10-17 10:54:31,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 699 transitions. [2022-10-17 10:54:31,973 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 699 transitions. Word has length 36 [2022-10-17 10:54:31,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:54:31,974 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 699 transitions. [2022-10-17 10:54:31,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:54:31,974 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 699 transitions. [2022-10-17 10:54:31,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-17 10:54:31,977 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:54:31,977 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:54:31,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 10:54:31,978 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:54:31,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:54:31,979 INFO L85 PathProgramCache]: Analyzing trace with hash 695972842, now seen corresponding path program 1 times [2022-10-17 10:54:31,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:54:31,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874750716] [2022-10-17 10:54:31,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:54:31,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:54:32,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:54:32,025 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:54:32,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:54:32,076 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:54:32,077 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-17 10:54:32,078 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-10-17 10:54:32,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 10:54:32,083 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-10-17 10:54:32,088 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 10:54:32,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 10:54:32 BoogieIcfgContainer [2022-10-17 10:54:32,173 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 10:54:32,174 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:54:32,175 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:54:32,175 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:54:32,176 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:54:29" (3/4) ... [2022-10-17 10:54:32,178 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 10:54:32,263 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e82973d9-d4b5-470b-b326-e8d03142023e/bin/uautomizer-J5u9QxTXDZ/witness.graphml [2022-10-17 10:54:32,263 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:54:32,264 INFO L158 Benchmark]: Toolchain (without parser) took 3646.88ms. Allocated memory was 98.6MB in the beginning and 130.0MB in the end (delta: 31.5MB). Free memory was 60.0MB in the beginning and 70.8MB in the end (delta: -10.8MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2022-10-17 10:54:32,264 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 98.6MB. Free memory is still 77.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:54:32,265 INFO L158 Benchmark]: CACSL2BoogieTranslator took 480.54ms. Allocated memory is still 98.6MB. Free memory was 59.9MB in the beginning and 61.8MB in the end (delta: -1.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 10:54:32,265 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.77ms. Allocated memory is still 98.6MB. Free memory was 61.8MB in the beginning and 59.2MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 10:54:32,265 INFO L158 Benchmark]: Boogie Preprocessor took 38.36ms. Allocated memory is still 98.6MB. Free memory was 59.2MB in the beginning and 57.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:54:32,266 INFO L158 Benchmark]: RCFGBuilder took 691.84ms. Allocated memory was 98.6MB in the beginning and 130.0MB in the end (delta: 31.5MB). Free memory was 57.4MB in the beginning and 100.4MB in the end (delta: -43.0MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2022-10-17 10:54:32,266 INFO L158 Benchmark]: TraceAbstraction took 2277.88ms. Allocated memory is still 130.0MB. Free memory was 99.3MB in the beginning and 75.0MB in the end (delta: 24.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-10-17 10:54:32,267 INFO L158 Benchmark]: Witness Printer took 89.06ms. Allocated memory is still 130.0MB. Free memory was 75.0MB in the beginning and 70.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 10:54:32,270 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 98.6MB. Free memory is still 77.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 480.54ms. Allocated memory is still 98.6MB. Free memory was 59.9MB in the beginning and 61.8MB in the end (delta: -1.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.77ms. Allocated memory is still 98.6MB. Free memory was 61.8MB in the beginning and 59.2MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.36ms. Allocated memory is still 98.6MB. Free memory was 59.2MB in the beginning and 57.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 691.84ms. Allocated memory was 98.6MB in the beginning and 130.0MB in the end (delta: 31.5MB). Free memory was 57.4MB in the beginning and 100.4MB in the end (delta: -43.0MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2277.88ms. Allocated memory is still 130.0MB. Free memory was 99.3MB in the beginning and 75.0MB in the end (delta: 24.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 89.06ms. Allocated memory is still 130.0MB. Free memory was 75.0MB in the beginning and 70.8MB in the end (delta: 4.2MB). 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 - CounterExampleResult [Line: 1006]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L100] int pumpRunning = 0; [L101] int systemActive = 1; [L437] int waterLevel = 1; [L438] int methaneLevelCritical = 0; [L709] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L906] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L979] int retValue_acc ; [L980] int tmp ; [L984] FCALL select_helpers() [L985] FCALL select_features() [L986] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L986] RET, EXPR valid_product() [L986] tmp = valid_product() [L988] COND TRUE \read(tmp) [L990] FCALL setup() [L991] CALL runTest() [L973] CALL test() [L368] int splverifierCounter ; [L369] int tmp ; [L370] int tmp___0 ; [L371] int tmp___1 ; [L372] int tmp___2 ; [L375] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L377] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L379] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L385] tmp = __VERIFIER_nondet_int() [L387] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L389] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L455] COND TRUE waterLevel < 2 [L456] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L389] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L395] tmp___0 = __VERIFIER_nondet_int() [L397] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L405] tmp___2 = __VERIFIER_nondet_int() [L407] COND FALSE !(\read(tmp___2)) [L413] tmp___1 = __VERIFIER_nondet_int() [L415] COND TRUE \read(tmp___1) [L417] CALL stopSystem() [L344] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L351] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L417] RET stopSystem() [L424] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L108] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L115] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L123] CALL __utac_acc__Specification3_spec__1() [L1012] int tmp ; [L1013] int tmp___0 ; [L1014] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1018] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L476] int retValue_acc ; [L479] retValue_acc = methaneLevelCritical [L480] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L1018] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1018] tmp = isMethaneLevelCritical() [L1020] COND FALSE !(\read(tmp)) [L1024] CALL, EXPR getWaterLevel() [L508] int retValue_acc ; [L511] retValue_acc = waterLevel [L512] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L1024] RET, EXPR getWaterLevel() [L1024] tmp___0 = getWaterLevel() [L1026] COND TRUE tmp___0 == 2 [L1028] CALL, EXPR isPumpRunning() [L258] int retValue_acc ; [L261] retValue_acc = pumpRunning [L262] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L1028] RET, EXPR isPumpRunning() [L1028] tmp___1 = isPumpRunning() [L1030] COND FALSE !(\read(tmp___1)) [L1034] CALL __automaton_fail() [L1006] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 115 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 318 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 314 mSDsluCounter, 1770 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1030 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 68 IncrementalHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 740 mSDtfsCounter, 68 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=547occurred in iteration=5, InterpolantAutomatonStates: 19, 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, 5 MinimizatonAttempts, 21 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 246 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-10-17 10:54:32,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e82973d9-d4b5-470b-b326-e8d03142023e/bin/uautomizer-J5u9QxTXDZ/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE