./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product55.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product55.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1741a5d4e19b6faba6ff51056891b76c8b4c0acd4f550f71706571820842dcfa --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:12:52,571 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:12:52,639 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:12:52,645 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:12:52,646 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:12:52,672 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:12:52,673 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:12:52,674 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:12:52,674 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:12:52,675 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:12:52,676 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:12:52,677 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:12:52,677 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:12:52,678 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:12:52,679 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:12:52,679 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:12:52,680 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:12:52,680 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:12:52,681 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:12:52,682 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:12:52,682 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:12:52,683 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:12:52,684 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:12:52,684 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:12:52,685 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:12:52,686 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:12:52,686 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:12:52,687 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:12:52,687 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:12:52,688 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:12:52,689 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:12:52,689 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:12:52,690 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:12:52,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:12:52,691 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:12:52,691 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:12:52,691 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:12:52,692 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:12:52,692 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:12:52,692 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1741a5d4e19b6faba6ff51056891b76c8b4c0acd4f550f71706571820842dcfa [2023-11-12 02:12:52,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:12:52,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:12:52,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:12:52,998 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:12:52,999 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:12:53,000 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/product-lines/minepump_spec4_product55.cil.c [2023-11-12 02:12:56,126 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:12:56,383 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:12:56,384 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/sv-benchmarks/c/product-lines/minepump_spec4_product55.cil.c [2023-11-12 02:12:56,403 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/data/cee593f2d/9cea56e0afe942188a064b7ac750dcfd/FLAG53e942679 [2023-11-12 02:12:56,432 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/data/cee593f2d/9cea56e0afe942188a064b7ac750dcfd [2023-11-12 02:12:56,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:12:56,442 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:12:56,446 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:12:56,447 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:12:56,453 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:12:56,457 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:12:56" (1/1) ... [2023-11-12 02:12:56,459 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43031ae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:56, skipping insertion in model container [2023-11-12 02:12:56,459 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:12:56" (1/1) ... [2023-11-12 02:12:56,543 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:12:56,860 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/sv-benchmarks/c/product-lines/minepump_spec4_product55.cil.c[6887,6900] [2023-11-12 02:12:56,976 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:12:56,991 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:12:57,003 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2023-11-12 02:12:57,004 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] [2023-11-12 02:12:57,004 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [369] [2023-11-12 02:12:57,005 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [397] [2023-11-12 02:12:57,005 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [435] [2023-11-12 02:12:57,005 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [444] [2023-11-12 02:12:57,005 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [540] [2023-11-12 02:12:57,006 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [906] [2023-11-12 02:12:57,025 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/sv-benchmarks/c/product-lines/minepump_spec4_product55.cil.c[6887,6900] [2023-11-12 02:12:57,080 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:12:57,100 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:12:57,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:57 WrapperNode [2023-11-12 02:12:57,101 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:12:57,102 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:12:57,103 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:12:57,103 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:12:57,111 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:57" (1/1) ... [2023-11-12 02:12:57,144 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:57" (1/1) ... [2023-11-12 02:12:57,180 INFO L138 Inliner]: procedures = 57, calls = 104, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 233 [2023-11-12 02:12:57,181 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:12:57,182 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:12:57,182 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:12:57,182 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:12:57,197 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:57" (1/1) ... [2023-11-12 02:12:57,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:57" (1/1) ... [2023-11-12 02:12:57,213 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:57" (1/1) ... [2023-11-12 02:12:57,214 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:57" (1/1) ... [2023-11-12 02:12:57,221 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:57" (1/1) ... [2023-11-12 02:12:57,239 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:57" (1/1) ... [2023-11-12 02:12:57,241 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:57" (1/1) ... [2023-11-12 02:12:57,243 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:57" (1/1) ... [2023-11-12 02:12:57,250 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:12:57,252 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:12:57,267 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:12:57,267 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:12:57,269 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:57" (1/1) ... [2023-11-12 02:12:57,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:12:57,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:12:57,311 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:12:57,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:12:57,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:12:57,359 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-12 02:12:57,360 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-12 02:12:57,360 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-12 02:12:57,360 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-12 02:12:57,360 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-12 02:12:57,361 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-12 02:12:57,361 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-11-12 02:12:57,361 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-11-12 02:12:57,361 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-12 02:12:57,361 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-12 02:12:57,362 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2023-11-12 02:12:57,362 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2023-11-12 02:12:57,362 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-11-12 02:12:57,362 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-11-12 02:12:57,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:12:57,363 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-12 02:12:57,363 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-12 02:12:57,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:12:57,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:12:57,510 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:12:57,515 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:12:57,867 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:12:57,881 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:12:57,881 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 02:12:57,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:12:57 BoogieIcfgContainer [2023-11-12 02:12:57,889 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:12:57,894 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:12:57,894 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:12:57,898 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:12:57,898 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:12:56" (1/3) ... [2023-11-12 02:12:57,899 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@537c8e9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:12:57, skipping insertion in model container [2023-11-12 02:12:57,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:57" (2/3) ... [2023-11-12 02:12:57,900 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@537c8e9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:12:57, skipping insertion in model container [2023-11-12 02:12:57,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:12:57" (3/3) ... [2023-11-12 02:12:57,902 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product55.cil.c [2023-11-12 02:12:57,932 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:12:57,933 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:12:57,999 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:12:58,008 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7e5a029a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:12:58,008 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:12:58,017 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 74 states have (on average 1.3918918918918919) internal successors, (103), 85 states have internal predecessors, (103), 15 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 02:12:58,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 02:12:58,026 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:12:58,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:12:58,027 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:12:58,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:58,032 INFO L85 PathProgramCache]: Analyzing trace with hash -405346600, now seen corresponding path program 1 times [2023-11-12 02:12:58,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:12:58,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77117422] [2023-11-12 02:12:58,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:58,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:12:58,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:58,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:12:58,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:12:58,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77117422] [2023-11-12 02:12:58,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77117422] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:12:58,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:12:58,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:12:58,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969188417] [2023-11-12 02:12:58,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:12:58,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:12:58,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:12:58,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:12:58,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:12:58,370 INFO L87 Difference]: Start difference. First operand has 99 states, 74 states have (on average 1.3918918918918919) internal successors, (103), 85 states have internal predecessors, (103), 15 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:12:58,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:12:58,409 INFO L93 Difference]: Finished difference Result 190 states and 261 transitions. [2023-11-12 02:12:58,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:12:58,411 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-11-12 02:12:58,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:12:58,420 INFO L225 Difference]: With dead ends: 190 [2023-11-12 02:12:58,421 INFO L226 Difference]: Without dead ends: 90 [2023-11-12 02:12:58,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:12:58,429 INFO L413 NwaCegarLoop]: 127 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, 127 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 [2023-11-12 02:12:58,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:12:58,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-11-12 02:12:58,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2023-11-12 02:12:58,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 67 states have (on average 1.328358208955224) internal successors, (89), 77 states have internal predecessors, (89), 15 states have call successors, (15), 8 states have call predecessors, (15), 7 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-12 02:12:58,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 118 transitions. [2023-11-12 02:12:58,479 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 118 transitions. Word has length 19 [2023-11-12 02:12:58,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:12:58,482 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 118 transitions. [2023-11-12 02:12:58,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:12:58,483 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 118 transitions. [2023-11-12 02:12:58,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-12 02:12:58,486 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:12:58,486 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:12:58,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:12:58,487 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:12:58,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:58,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1370466006, now seen corresponding path program 1 times [2023-11-12 02:12:58,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:12:58,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106641527] [2023-11-12 02:12:58,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:58,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:12:58,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:58,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:12:58,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:12:58,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106641527] [2023-11-12 02:12:58,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106641527] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:12:58,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:12:58,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:12:58,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903031446] [2023-11-12 02:12:58,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:12:58,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:12:58,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:12:58,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:12:58,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:12:58,623 INFO L87 Difference]: Start difference. First operand 90 states and 118 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:12:58,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:12:58,647 INFO L93 Difference]: Finished difference Result 142 states and 186 transitions. [2023-11-12 02:12:58,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:12:58,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-11-12 02:12:58,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:12:58,650 INFO L225 Difference]: With dead ends: 142 [2023-11-12 02:12:58,650 INFO L226 Difference]: Without dead ends: 81 [2023-11-12 02:12:58,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:12:58,654 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 16 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 189 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 [2023-11-12 02:12:58,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 189 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:12:58,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-11-12 02:12:58,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2023-11-12 02:12:58,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 61 states have (on average 1.3442622950819672) internal successors, (82), 71 states have internal predecessors, (82), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 7 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-12 02:12:58,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 106 transitions. [2023-11-12 02:12:58,676 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 106 transitions. Word has length 20 [2023-11-12 02:12:58,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:12:58,677 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 106 transitions. [2023-11-12 02:12:58,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:12:58,677 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 106 transitions. [2023-11-12 02:12:58,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-12 02:12:58,679 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:12:58,679 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] [2023-11-12 02:12:58,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:12:58,680 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:12:58,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:58,680 INFO L85 PathProgramCache]: Analyzing trace with hash 412043634, now seen corresponding path program 1 times [2023-11-12 02:12:58,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:12:58,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232347218] [2023-11-12 02:12:58,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:58,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:12:58,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:58,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:12:58,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:12:58,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232347218] [2023-11-12 02:12:58,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232347218] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:12:58,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:12:58,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:12:58,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737792211] [2023-11-12 02:12:58,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:12:58,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:12:58,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:12:58,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:12:58,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:12:58,947 INFO L87 Difference]: Start difference. First operand 81 states and 106 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:12:59,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:12:59,247 INFO L93 Difference]: Finished difference Result 266 states and 355 transitions. [2023-11-12 02:12:59,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:12:59,248 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2023-11-12 02:12:59,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:12:59,252 INFO L225 Difference]: With dead ends: 266 [2023-11-12 02:12:59,253 INFO L226 Difference]: Without dead ends: 192 [2023-11-12 02:12:59,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:12:59,262 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 270 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:12:59,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 469 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:12:59,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-12 02:12:59,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 186. [2023-11-12 02:12:59,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 139 states have (on average 1.3741007194244603) internal successors, (191), 161 states have internal predecessors, (191), 28 states have call successors, (28), 18 states have call predecessors, (28), 18 states have return successors, (29), 16 states have call predecessors, (29), 28 states have call successors, (29) [2023-11-12 02:12:59,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 248 transitions. [2023-11-12 02:12:59,304 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 248 transitions. Word has length 24 [2023-11-12 02:12:59,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:12:59,305 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 248 transitions. [2023-11-12 02:12:59,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:12:59,305 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 248 transitions. [2023-11-12 02:12:59,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-12 02:12:59,308 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:12:59,308 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] [2023-11-12 02:12:59,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:12:59,308 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:12:59,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:59,309 INFO L85 PathProgramCache]: Analyzing trace with hash 2062247464, now seen corresponding path program 1 times [2023-11-12 02:12:59,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:12:59,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056745877] [2023-11-12 02:12:59,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:59,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:12:59,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:59,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:12:59,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:12:59,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056745877] [2023-11-12 02:12:59,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056745877] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:12:59,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:12:59,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:12:59,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334750455] [2023-11-12 02:12:59,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:12:59,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:12:59,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:12:59,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:12:59,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:12:59,509 INFO L87 Difference]: Start difference. First operand 186 states and 248 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:12:59,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:12:59,628 INFO L93 Difference]: Finished difference Result 527 states and 733 transitions. [2023-11-12 02:12:59,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:12:59,629 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2023-11-12 02:12:59,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:12:59,638 INFO L225 Difference]: With dead ends: 527 [2023-11-12 02:12:59,638 INFO L226 Difference]: Without dead ends: 348 [2023-11-12 02:12:59,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:12:59,641 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 75 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:12:59,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 387 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:12:59,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-11-12 02:12:59,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2023-11-12 02:12:59,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 258 states have (on average 1.3488372093023255) internal successors, (348), 298 states have internal predecessors, (348), 56 states have call successors, (56), 36 states have call predecessors, (56), 33 states have return successors, (62), 29 states have call predecessors, (62), 56 states have call successors, (62) [2023-11-12 02:12:59,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 466 transitions. [2023-11-12 02:12:59,740 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 466 transitions. Word has length 28 [2023-11-12 02:12:59,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:12:59,740 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 466 transitions. [2023-11-12 02:12:59,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:12:59,741 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 466 transitions. [2023-11-12 02:12:59,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-12 02:12:59,757 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:12:59,757 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] [2023-11-12 02:12:59,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:12:59,758 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:12:59,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:59,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1056507795, now seen corresponding path program 1 times [2023-11-12 02:12:59,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:12:59,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399305590] [2023-11-12 02:12:59,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:59,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:12:59,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:59,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:12:59,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:12:59,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399305590] [2023-11-12 02:12:59,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399305590] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:12:59,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:12:59,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:12:59,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047198409] [2023-11-12 02:12:59,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:12:59,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:12:59,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:12:59,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:12:59,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:12:59,877 INFO L87 Difference]: Start difference. First operand 348 states and 466 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:12:59,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:12:59,976 INFO L93 Difference]: Finished difference Result 794 states and 1093 transitions. [2023-11-12 02:12:59,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:12:59,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2023-11-12 02:12:59,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:12:59,982 INFO L225 Difference]: With dead ends: 794 [2023-11-12 02:12:59,983 INFO L226 Difference]: Without dead ends: 453 [2023-11-12 02:12:59,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:12:59,996 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 58 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:12:59,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 173 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:12:59,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2023-11-12 02:13:00,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 442. [2023-11-12 02:13:00,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 336 states have (on average 1.2916666666666667) internal successors, (434), 361 states have internal predecessors, (434), 55 states have call successors, (55), 51 states have call predecessors, (55), 50 states have return successors, (83), 49 states have call predecessors, (83), 55 states have call successors, (83) [2023-11-12 02:13:00,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 572 transitions. [2023-11-12 02:13:00,055 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 572 transitions. Word has length 30 [2023-11-12 02:13:00,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:13:00,056 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 572 transitions. [2023-11-12 02:13:00,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:13:00,056 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 572 transitions. [2023-11-12 02:13:00,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-12 02:13:00,058 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:13:00,058 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] [2023-11-12 02:13:00,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:13:00,058 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:13:00,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:00,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1410993586, now seen corresponding path program 1 times [2023-11-12 02:13:00,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:00,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309304657] [2023-11-12 02:13:00,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:00,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:00,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:00,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:13:00,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:00,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:13:00,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:13:00,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309304657] [2023-11-12 02:13:00,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309304657] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:13:00,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:13:00,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:13:00,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819023157] [2023-11-12 02:13:00,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:13:00,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:13:00,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:13:00,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:13:00,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:13:00,211 INFO L87 Difference]: Start difference. First operand 442 states and 572 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:13:00,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:13:00,569 INFO L93 Difference]: Finished difference Result 529 states and 684 transitions. [2023-11-12 02:13:00,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-12 02:13:00,570 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 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 32 [2023-11-12 02:13:00,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:13:00,575 INFO L225 Difference]: With dead ends: 529 [2023-11-12 02:13:00,576 INFO L226 Difference]: Without dead ends: 527 [2023-11-12 02:13:00,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:13:00,578 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 136 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:13:00,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 279 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:13:00,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2023-11-12 02:13:00,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 506. [2023-11-12 02:13:00,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 385 states have (on average 1.2727272727272727) internal successors, (490), 421 states have internal predecessors, (490), 61 states have call successors, (61), 51 states have call predecessors, (61), 59 states have return successors, (102), 53 states have call predecessors, (102), 61 states have call successors, (102) [2023-11-12 02:13:00,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 653 transitions. [2023-11-12 02:13:00,651 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 653 transitions. Word has length 32 [2023-11-12 02:13:00,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:13:00,653 INFO L495 AbstractCegarLoop]: Abstraction has 506 states and 653 transitions. [2023-11-12 02:13:00,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:13:00,654 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 653 transitions. [2023-11-12 02:13:00,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-12 02:13:00,658 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:13:00,658 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:13:00,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:13:00,659 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:13:00,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:00,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1995340570, now seen corresponding path program 1 times [2023-11-12 02:13:00,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:00,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854758936] [2023-11-12 02:13:00,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:00,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:00,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:00,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:13:00,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:00,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:13:00,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:00,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:13:00,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:00,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:13:00,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:13:00,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854758936] [2023-11-12 02:13:00,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854758936] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:13:00,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:13:00,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:13:00,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122033337] [2023-11-12 02:13:00,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:13:00,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:13:00,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:13:00,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:13:00,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:13:00,832 INFO L87 Difference]: Start difference. First operand 506 states and 653 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 02:13:01,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:13:01,229 INFO L93 Difference]: Finished difference Result 1119 states and 1470 transitions. [2023-11-12 02:13:01,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:13:01,230 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 47 [2023-11-12 02:13:01,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:13:01,234 INFO L225 Difference]: With dead ends: 1119 [2023-11-12 02:13:01,234 INFO L226 Difference]: Without dead ends: 620 [2023-11-12 02:13:01,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:13:01,240 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 144 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:13:01,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 313 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 02:13:01,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2023-11-12 02:13:01,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 566. [2023-11-12 02:13:01,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 435 states have (on average 1.2551724137931035) internal successors, (546), 471 states have internal predecessors, (546), 61 states have call successors, (61), 51 states have call predecessors, (61), 69 states have return successors, (116), 61 states have call predecessors, (116), 61 states have call successors, (116) [2023-11-12 02:13:01,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 723 transitions. [2023-11-12 02:13:01,299 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 723 transitions. Word has length 47 [2023-11-12 02:13:01,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:13:01,299 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 723 transitions. [2023-11-12 02:13:01,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 02:13:01,300 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 723 transitions. [2023-11-12 02:13:01,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-12 02:13:01,301 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:13:01,301 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:13:01,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:13:01,301 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:13:01,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:01,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1278558372, now seen corresponding path program 1 times [2023-11-12 02:13:01,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:01,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061407862] [2023-11-12 02:13:01,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:01,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:01,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:01,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:13:01,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:01,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:13:01,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:01,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:13:01,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:01,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:13:01,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:13:01,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061407862] [2023-11-12 02:13:01,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061407862] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:13:01,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:13:01,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 02:13:01,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337270481] [2023-11-12 02:13:01,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:13:01,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:13:01,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:13:01,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:13:01,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:13:01,434 INFO L87 Difference]: Start difference. First operand 566 states and 723 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 02:13:01,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:13:01,825 INFO L93 Difference]: Finished difference Result 1112 states and 1461 transitions. [2023-11-12 02:13:01,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:13:01,826 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 47 [2023-11-12 02:13:01,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:13:01,830 INFO L225 Difference]: With dead ends: 1112 [2023-11-12 02:13:01,830 INFO L226 Difference]: Without dead ends: 553 [2023-11-12 02:13:01,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:13:01,833 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 195 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:13:01,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 313 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 02:13:01,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2023-11-12 02:13:01,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 457. [2023-11-12 02:13:01,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 350 states have (on average 1.2514285714285713) internal successors, (438), 379 states have internal predecessors, (438), 52 states have call successors, (52), 44 states have call predecessors, (52), 54 states have return successors, (88), 48 states have call predecessors, (88), 52 states have call successors, (88) [2023-11-12 02:13:01,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 578 transitions. [2023-11-12 02:13:01,879 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 578 transitions. Word has length 47 [2023-11-12 02:13:01,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:13:01,880 INFO L495 AbstractCegarLoop]: Abstraction has 457 states and 578 transitions. [2023-11-12 02:13:01,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 02:13:01,880 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 578 transitions. [2023-11-12 02:13:01,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-12 02:13:01,881 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:13:01,882 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:13:01,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:13:01,882 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:13:01,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:01,883 INFO L85 PathProgramCache]: Analyzing trace with hash -715586334, now seen corresponding path program 1 times [2023-11-12 02:13:01,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:01,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409486571] [2023-11-12 02:13:01,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:01,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:02,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:13:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:02,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:13:02,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:02,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:13:02,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:02,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:13:02,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:13:02,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409486571] [2023-11-12 02:13:02,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409486571] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:13:02,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:13:02,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:13:02,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848483230] [2023-11-12 02:13:02,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:13:02,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:13:02,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:13:02,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:13:02,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:13:02,051 INFO L87 Difference]: Start difference. First operand 457 states and 578 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 02:13:02,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:13:02,636 INFO L93 Difference]: Finished difference Result 1035 states and 1392 transitions. [2023-11-12 02:13:02,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-12 02:13:02,637 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 47 [2023-11-12 02:13:02,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:13:02,643 INFO L225 Difference]: With dead ends: 1035 [2023-11-12 02:13:02,644 INFO L226 Difference]: Without dead ends: 702 [2023-11-12 02:13:02,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2023-11-12 02:13:02,652 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 203 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:13:02,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 422 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 02:13:02,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2023-11-12 02:13:02,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 677. [2023-11-12 02:13:02,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 521 states have (on average 1.2284069097888675) internal successors, (640), 558 states have internal predecessors, (640), 76 states have call successors, (76), 66 states have call predecessors, (76), 79 states have return successors, (157), 78 states have call predecessors, (157), 76 states have call successors, (157) [2023-11-12 02:13:02,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 873 transitions. [2023-11-12 02:13:02,756 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 873 transitions. Word has length 47 [2023-11-12 02:13:02,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:13:02,757 INFO L495 AbstractCegarLoop]: Abstraction has 677 states and 873 transitions. [2023-11-12 02:13:02,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 02:13:02,757 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 873 transitions. [2023-11-12 02:13:02,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-12 02:13:02,762 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:13:02,762 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2023-11-12 02:13:02,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:13:02,763 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:13:02,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:02,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1870420981, now seen corresponding path program 1 times [2023-11-12 02:13:02,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:02,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859311187] [2023-11-12 02:13:02,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:02,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:02,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:02,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:13:02,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:02,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-12 02:13:02,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:03,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:13:03,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:03,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:13:03,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:03,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-12 02:13:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:03,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-12 02:13:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:03,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:13:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:03,074 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 02:13:03,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:13:03,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859311187] [2023-11-12 02:13:03,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859311187] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:13:03,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872288183] [2023-11-12 02:13:03,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:03,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:13:03,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:13:03,079 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:13:03,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:13:03,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:03,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:13:03,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:13:03,371 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:13:03,371 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:13:03,555 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 02:13:03,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872288183] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:13:03,556 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:13:03,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 9 [2023-11-12 02:13:03,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669647637] [2023-11-12 02:13:03,556 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:13:03,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:13:03,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:13:03,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:13:03,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:13:03,559 INFO L87 Difference]: Start difference. First operand 677 states and 873 transitions. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 6 states have internal predecessors, (88), 3 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-12 02:13:04,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:13:04,475 INFO L93 Difference]: Finished difference Result 1624 states and 2213 transitions. [2023-11-12 02:13:04,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-12 02:13:04,476 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 6 states have internal predecessors, (88), 3 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 89 [2023-11-12 02:13:04,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:13:04,484 INFO L225 Difference]: With dead ends: 1624 [2023-11-12 02:13:04,485 INFO L226 Difference]: Without dead ends: 1071 [2023-11-12 02:13:04,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 191 SyntacticMatches, 8 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=227, Invalid=585, Unknown=0, NotChecked=0, Total=812 [2023-11-12 02:13:04,488 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 263 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-12 02:13:04,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 536 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-12 02:13:04,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2023-11-12 02:13:04,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 936. [2023-11-12 02:13:04,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 712 states have (on average 1.2359550561797752) internal successors, (880), 767 states have internal predecessors, (880), 111 states have call successors, (111), 95 states have call predecessors, (111), 112 states have return successors, (242), 105 states have call predecessors, (242), 111 states have call successors, (242) [2023-11-12 02:13:04,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1233 transitions. [2023-11-12 02:13:04,581 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1233 transitions. Word has length 89 [2023-11-12 02:13:04,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:13:04,582 INFO L495 AbstractCegarLoop]: Abstraction has 936 states and 1233 transitions. [2023-11-12 02:13:04,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 6 states have internal predecessors, (88), 3 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-12 02:13:04,582 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1233 transitions. [2023-11-12 02:13:04,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-12 02:13:04,587 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:13:04,588 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:13:04,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:13:04,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-12 02:13:04,794 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:13:04,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:04,795 INFO L85 PathProgramCache]: Analyzing trace with hash 309477364, now seen corresponding path program 2 times [2023-11-12 02:13:04,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:04,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701356223] [2023-11-12 02:13:04,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:04,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:05,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:13:05,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:05,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-12 02:13:05,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:05,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:13:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:05,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:13:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:05,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-12 02:13:05,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:05,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:13:05,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:05,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-12 02:13:05,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:05,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:13:05,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:05,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-12 02:13:05,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:05,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-12 02:13:05,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:05,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:13:05,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:05,327 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 49 proven. 23 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-12 02:13:05,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:13:05,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701356223] [2023-11-12 02:13:05,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701356223] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:13:05,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165776991] [2023-11-12 02:13:05,327 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:13:05,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:13:05,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:13:05,329 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:13:05,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:13:05,461 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-12 02:13:05,462 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:13:05,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-12 02:13:05,470 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:13:05,557 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 02:13:05,557 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:13:05,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165776991] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:13:05,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:13:05,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 12 [2023-11-12 02:13:05,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875013848] [2023-11-12 02:13:05,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:13:05,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:13:05,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:13:05,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:13:05,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:13:05,560 INFO L87 Difference]: Start difference. First operand 936 states and 1233 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-12 02:13:05,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:13:05,997 INFO L93 Difference]: Finished difference Result 2509 states and 3457 transitions. [2023-11-12 02:13:05,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:13:05,998 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 131 [2023-11-12 02:13:05,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:13:06,012 INFO L225 Difference]: With dead ends: 2509 [2023-11-12 02:13:06,012 INFO L226 Difference]: Without dead ends: 1695 [2023-11-12 02:13:06,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 152 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2023-11-12 02:13:06,018 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 203 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:13:06,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 608 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:13:06,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695 states. [2023-11-12 02:13:06,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695 to 1659. [2023-11-12 02:13:06,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1659 states, 1262 states have (on average 1.2345483359746434) internal successors, (1558), 1344 states have internal predecessors, (1558), 192 states have call successors, (192), 170 states have call predecessors, (192), 204 states have return successors, (394), 194 states have call predecessors, (394), 192 states have call successors, (394) [2023-11-12 02:13:06,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1659 states to 1659 states and 2144 transitions. [2023-11-12 02:13:06,176 INFO L78 Accepts]: Start accepts. Automaton has 1659 states and 2144 transitions. Word has length 131 [2023-11-12 02:13:06,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:13:06,176 INFO L495 AbstractCegarLoop]: Abstraction has 1659 states and 2144 transitions. [2023-11-12 02:13:06,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-12 02:13:06,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1659 states and 2144 transitions. [2023-11-12 02:13:06,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-12 02:13:06,182 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:13:06,183 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:13:06,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:13:06,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-12 02:13:06,389 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:13:06,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:06,390 INFO L85 PathProgramCache]: Analyzing trace with hash -107919242, now seen corresponding path program 1 times [2023-11-12 02:13:06,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:06,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223411183] [2023-11-12 02:13:06,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:06,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:06,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:06,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:13:06,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:06,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-12 02:13:06,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:06,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:13:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:06,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:13:06,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:06,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-12 02:13:06,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:06,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:13:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:06,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-12 02:13:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:06,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:13:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:06,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-12 02:13:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:06,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-12 02:13:06,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:06,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:13:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:06,670 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 43 proven. 6 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-12 02:13:06,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:13:06,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223411183] [2023-11-12 02:13:06,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223411183] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:13:06,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323004431] [2023-11-12 02:13:06,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:06,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:13:06,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:13:06,672 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:13:06,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:13:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:06,808 INFO L262 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:13:06,812 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:13:06,848 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-12 02:13:06,848 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:13:06,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323004431] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:13:06,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:13:06,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 12 [2023-11-12 02:13:06,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403069246] [2023-11-12 02:13:06,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:13:06,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:13:06,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:13:06,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:13:06,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:13:06,851 INFO L87 Difference]: Start difference. First operand 1659 states and 2144 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 02:13:06,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:13:06,958 INFO L93 Difference]: Finished difference Result 2287 states and 2930 transitions. [2023-11-12 02:13:06,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:13:06,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 131 [2023-11-12 02:13:06,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:13:06,959 INFO L225 Difference]: With dead ends: 2287 [2023-11-12 02:13:06,960 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 02:13:06,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-11-12 02:13:06,966 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 6 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:13:06,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 400 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:13:06,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 02:13:06,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 02:13:06,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:13:06,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 02:13:06,967 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 131 [2023-11-12 02:13:06,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:13:06,968 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:13:06,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 02:13:06,968 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 02:13:06,968 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 02:13:06,971 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:13:06,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:13:07,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-12 02:13:07,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 02:13:08,664 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 252 259) no Hoare annotation was computed. [2023-11-12 02:13:08,664 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 252 259) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< ~waterLevel~0 1) (= 0 ~systemActive~0)) [2023-11-12 02:13:08,665 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 252 259) no Hoare annotation was computed. [2023-11-12 02:13:08,665 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 159 165) no Hoare annotation was computed. [2023-11-12 02:13:08,665 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 159 165) the Hoare annotation is: true [2023-11-12 02:13:08,665 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 933 944) the Hoare annotation is: true [2023-11-12 02:13:08,665 INFO L899 garLoopResultBuilder]: For program point L937-1(lines 933 944) no Hoare annotation was computed. [2023-11-12 02:13:08,665 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 933 944) no Hoare annotation was computed. [2023-11-12 02:13:08,665 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 446 475) no Hoare annotation was computed. [2023-11-12 02:13:08,665 INFO L899 garLoopResultBuilder]: For program point L471(lines 446 475) no Hoare annotation was computed. [2023-11-12 02:13:08,666 INFO L899 garLoopResultBuilder]: For program point L467(line 467) no Hoare annotation was computed. [2023-11-12 02:13:08,666 INFO L899 garLoopResultBuilder]: For program point L460(lines 460 464) no Hoare annotation was computed. [2023-11-12 02:13:08,666 INFO L902 garLoopResultBuilder]: At program point L460-1(lines 460 464) the Hoare annotation is: true [2023-11-12 02:13:08,666 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 446 475) the Hoare annotation is: true [2023-11-12 02:13:08,666 INFO L899 garLoopResultBuilder]: For program point L457(line 457) no Hoare annotation was computed. [2023-11-12 02:13:08,666 INFO L902 garLoopResultBuilder]: At program point L456-2(lines 456 470) the Hoare annotation is: true [2023-11-12 02:13:08,666 INFO L902 garLoopResultBuilder]: At program point L452(line 452) the Hoare annotation is: true [2023-11-12 02:13:08,667 INFO L899 garLoopResultBuilder]: For program point L452-1(line 452) no Hoare annotation was computed. [2023-11-12 02:13:08,667 INFO L899 garLoopResultBuilder]: For program point L440(line 440) no Hoare annotation was computed. [2023-11-12 02:13:08,667 INFO L895 garLoopResultBuilder]: At program point L238(line 238) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= 0 ~systemActive~0))) (and (or (< |old(~waterLevel~0)| 2) .cse0 .cse1) (or (not .cse0) (< |old(~waterLevel~0)| 1) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0) (not .cse1))))) [2023-11-12 02:13:08,667 INFO L899 garLoopResultBuilder]: For program point L238-1(lines 219 243) no Hoare annotation was computed. [2023-11-12 02:13:08,667 INFO L899 garLoopResultBuilder]: For program point L139-1(lines 138 157) no Hoare annotation was computed. [2023-11-12 02:13:08,667 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 135 158) no Hoare annotation was computed. [2023-11-12 02:13:08,667 INFO L899 garLoopResultBuilder]: For program point getWaterLevel_returnLabel#1(lines 977 985) no Hoare annotation was computed. [2023-11-12 02:13:08,668 INFO L899 garLoopResultBuilder]: For program point L227(lines 227 235) no Hoare annotation was computed. [2023-11-12 02:13:08,668 INFO L899 garLoopResultBuilder]: For program point L384(lines 384 390) no Hoare annotation was computed. [2023-11-12 02:13:08,668 INFO L899 garLoopResultBuilder]: For program point L223(lines 223 240) no Hoare annotation was computed. [2023-11-12 02:13:08,668 INFO L899 garLoopResultBuilder]: For program point L380(lines 380 393) no Hoare annotation was computed. [2023-11-12 02:13:08,668 INFO L899 garLoopResultBuilder]: For program point L380-1(lines 372 396) no Hoare annotation was computed. [2023-11-12 02:13:08,668 INFO L899 garLoopResultBuilder]: For program point L913(lines 913 917) no Hoare annotation was computed. [2023-11-12 02:13:08,668 INFO L899 garLoopResultBuilder]: For program point L913-2(lines 909 920) no Hoare annotation was computed. [2023-11-12 02:13:08,668 INFO L899 garLoopResultBuilder]: For program point __automaton_fail_returnLabel#1(lines 436 443) no Hoare annotation was computed. [2023-11-12 02:13:08,669 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 135 158) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (and (= ~pumpRunning~0 0) .cse0)) (or (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) (= 0 ~systemActive~0)))) [2023-11-12 02:13:08,669 INFO L899 garLoopResultBuilder]: For program point L146-1(lines 146 152) no Hoare annotation was computed. [2023-11-12 02:13:08,669 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCritical_returnLabel#1(lines 945 953) no Hoare annotation was computed. [2023-11-12 02:13:08,669 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 135 158) no Hoare annotation was computed. [2023-11-12 02:13:08,669 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarm_returnLabel#1(lines 260 270) no Hoare annotation was computed. [2023-11-12 02:13:08,670 INFO L895 garLoopResultBuilder]: At program point L233(line 233) the Hoare annotation is: (let ((.cse0 (< |old(~waterLevel~0)| 2)) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) (or .cse1 .cse0) (or .cse1 (not (= |old(~waterLevel~0)| 1))))) [2023-11-12 02:13:08,670 INFO L899 garLoopResultBuilder]: For program point isPumpRunning_returnLabel#1(lines 271 279) no Hoare annotation was computed. [2023-11-12 02:13:08,670 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 440) no Hoare annotation was computed. [2023-11-12 02:13:08,670 INFO L895 garLoopResultBuilder]: At program point L229(line 229) the Hoare annotation is: (let ((.cse0 (< |old(~waterLevel~0)| 2)) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) (or .cse1 .cse0) (or .cse1 (not (= |old(~waterLevel~0)| 1))))) [2023-11-12 02:13:08,670 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 91) no Hoare annotation was computed. [2023-11-12 02:13:08,670 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 85 91) no Hoare annotation was computed. [2023-11-12 02:13:08,670 INFO L899 garLoopResultBuilder]: For program point L527(lines 527 534) no Hoare annotation was computed. [2023-11-12 02:13:08,671 INFO L899 garLoopResultBuilder]: For program point runTest_returnLabel#1(lines 507 516) no Hoare annotation was computed. [2023-11-12 02:13:08,671 INFO L895 garLoopResultBuilder]: At program point L110(lines 65 112) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= |ULTIMATE.start_main_~tmp~7#1| 1)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse3 (<= 2 ~waterLevel~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse4 (= ~waterLevel~0 1)) (and .cse0 .cse2 .cse3 .cse4 (not (= 0 ~systemActive~0))))) [2023-11-12 02:13:08,671 INFO L895 garLoopResultBuilder]: At program point L77(line 77) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= |ULTIMATE.start_main_~tmp~7#1| 1)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse3 (<= 2 ~waterLevel~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse4 (= ~waterLevel~0 1)) (and .cse0 .cse2 .cse3 .cse4 (not (= 0 ~systemActive~0))))) [2023-11-12 02:13:08,671 INFO L899 garLoopResultBuilder]: For program point L527-2(lines 527 534) no Hoare annotation was computed. [2023-11-12 02:13:08,671 INFO L899 garLoopResultBuilder]: For program point select_features_returnLabel#1(lines 412 418) no Hoare annotation was computed. [2023-11-12 02:13:08,672 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 517 539) no Hoare annotation was computed. [2023-11-12 02:13:08,672 INFO L899 garLoopResultBuilder]: For program point L358(lines 358 364) no Hoare annotation was computed. [2023-11-12 02:13:08,672 INFO L899 garLoopResultBuilder]: For program point L358-1(lines 358 364) no Hoare annotation was computed. [2023-11-12 02:13:08,672 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-12 02:13:08,672 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-12 02:13:08,672 INFO L899 garLoopResultBuilder]: For program point setup_returnLabel#1(lines 500 506) no Hoare annotation was computed. [2023-11-12 02:13:08,672 INFO L899 garLoopResultBuilder]: For program point L66(lines 65 112) no Hoare annotation was computed. [2023-11-12 02:13:08,672 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 02:13:08,672 INFO L899 garLoopResultBuilder]: For program point L95(lines 95 108) no Hoare annotation was computed. [2023-11-12 02:13:08,673 INFO L895 garLoopResultBuilder]: At program point L87(line 87) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= |ULTIMATE.start_main_~tmp~7#1| 1)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse3 (<= 2 ~waterLevel~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse4 (= ~waterLevel~0 1)) (and .cse0 .cse2 .cse3 .cse4 (not (= 0 ~systemActive~0))))) [2023-11-12 02:13:08,673 INFO L899 garLoopResultBuilder]: For program point L116(lines 55 120) no Hoare annotation was computed. [2023-11-12 02:13:08,673 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 81) no Hoare annotation was computed. [2023-11-12 02:13:08,673 INFO L899 garLoopResultBuilder]: For program point L75-1(lines 75 81) no Hoare annotation was computed. [2023-11-12 02:13:08,673 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 02:13:08,673 INFO L899 garLoopResultBuilder]: For program point select_helpers_returnLabel#1(lines 419 425) no Hoare annotation was computed. [2023-11-12 02:13:08,674 INFO L895 garLoopResultBuilder]: At program point L360(line 360) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~7#1| 1) (= |ULTIMATE.start_valid_product_#res#1| 1) (<= 2 ~waterLevel~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (not (= 0 ~systemActive~0))) [2023-11-12 02:13:08,674 INFO L899 garLoopResultBuilder]: For program point L67(lines 67 71) no Hoare annotation was computed. [2023-11-12 02:13:08,674 INFO L899 garLoopResultBuilder]: For program point stopSystem_returnLabel#1(lines 354 368) no Hoare annotation was computed. [2023-11-12 02:13:08,674 INFO L895 garLoopResultBuilder]: At program point L113(lines 64 114) the Hoare annotation is: false [2023-11-12 02:13:08,674 INFO L899 garLoopResultBuilder]: For program point valid_product_returnLabel#1(lines 426 434) no Hoare annotation was computed. [2023-11-12 02:13:08,674 INFO L899 garLoopResultBuilder]: For program point L101(lines 101 107) no Hoare annotation was computed. [2023-11-12 02:13:08,674 INFO L895 garLoopResultBuilder]: At program point L101-2(lines 95 108) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= |ULTIMATE.start_main_~tmp~7#1| 1)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse3 (<= 2 ~waterLevel~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse4 (= ~waterLevel~0 1)) (and .cse0 .cse2 .cse3 .cse4 (not (= 0 ~systemActive~0))))) [2023-11-12 02:13:08,675 INFO L899 garLoopResultBuilder]: For program point activatePump_returnLabel#1(lines 244 251) no Hoare annotation was computed. [2023-11-12 02:13:08,675 INFO L895 garLoopResultBuilder]: At program point L186(line 186) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (< ~waterLevel~0 1) (= 0 ~systemActive~0)) [2023-11-12 02:13:08,675 INFO L899 garLoopResultBuilder]: For program point L186-1(lines 167 191) no Hoare annotation was computed. [2023-11-12 02:13:08,675 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 167 191) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (< ~waterLevel~0 1) (= 0 ~systemActive~0)) [2023-11-12 02:13:08,682 INFO L899 garLoopResultBuilder]: For program point L325(lines 325 329) no Hoare annotation was computed. [2023-11-12 02:13:08,682 INFO L899 garLoopResultBuilder]: For program point L325-2(lines 325 329) no Hoare annotation was computed. [2023-11-12 02:13:08,683 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 986 999) no Hoare annotation was computed. [2023-11-12 02:13:08,683 INFO L899 garLoopResultBuilder]: For program point L990(lines 990 996) no Hoare annotation was computed. [2023-11-12 02:13:08,683 INFO L899 garLoopResultBuilder]: For program point isHighWaterLevel_returnLabel#1(lines 316 334) no Hoare annotation was computed. [2023-11-12 02:13:08,683 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 167 191) no Hoare annotation was computed. [2023-11-12 02:13:08,683 INFO L895 garLoopResultBuilder]: At program point L181(line 181) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or (not (= ~waterLevel~0 1)) .cse0 (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)) .cse1) (or .cse0 (< ~waterLevel~0 1) (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~1#1| 0)) .cse1))) [2023-11-12 02:13:08,683 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 183) no Hoare annotation was computed. [2023-11-12 02:13:08,684 INFO L899 garLoopResultBuilder]: For program point L171(lines 171 188) no Hoare annotation was computed. [2023-11-12 02:13:08,684 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 921 932) no Hoare annotation was computed. [2023-11-12 02:13:08,684 INFO L899 garLoopResultBuilder]: For program point L925-1(lines 921 932) no Hoare annotation was computed. [2023-11-12 02:13:08,684 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 921 932) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (< |old(~waterLevel~0)| 2)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (or .cse1 .cse2 (= 0 ~systemActive~0)))) [2023-11-12 02:13:08,684 INFO L895 garLoopResultBuilder]: At program point L207(line 207) the Hoare annotation is: (or (< ~waterLevel~0 1) (= 0 ~systemActive~0)) [2023-11-12 02:13:08,684 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDry_returnLabel#1(lines 1000 1008) no Hoare annotation was computed. [2023-11-12 02:13:08,685 INFO L895 garLoopResultBuilder]: At program point L203(line 203) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_#res#1|) (<= 1 |processEnvironment__wrappee__lowWaterSensor_~tmp~2#1|) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterSensorDry_#res#1| 0))))) [2023-11-12 02:13:08,685 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 193 217) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< ~waterLevel~0 1) (= 0 ~systemActive~0)) [2023-11-12 02:13:08,685 INFO L899 garLoopResultBuilder]: For program point L201(lines 201 209) no Hoare annotation was computed. [2023-11-12 02:13:08,685 INFO L899 garLoopResultBuilder]: For program point L197(lines 197 214) no Hoare annotation was computed. [2023-11-12 02:13:08,686 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevel_returnLabel#1(lines 335 353) no Hoare annotation was computed. [2023-11-12 02:13:08,686 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 193 217) no Hoare annotation was computed. [2023-11-12 02:13:08,686 INFO L899 garLoopResultBuilder]: For program point L344(lines 344 348) no Hoare annotation was computed. [2023-11-12 02:13:08,686 INFO L899 garLoopResultBuilder]: For program point L344-2(lines 344 348) no Hoare annotation was computed. [2023-11-12 02:13:08,686 INFO L895 garLoopResultBuilder]: At program point L212(line 212) the Hoare annotation is: (or (< ~waterLevel~0 1) (= 0 ~systemActive~0) (and (= ~pumpRunning~0 0) (= |old(~pumpRunning~0)| 0))) [2023-11-12 02:13:08,687 INFO L899 garLoopResultBuilder]: For program point L212-1(lines 193 217) no Hoare annotation was computed. [2023-11-12 02:13:08,689 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:13:08,691 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:13:08,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:13:08 BoogieIcfgContainer [2023-11-12 02:13:08,709 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:13:08,709 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:13:08,709 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:13:08,710 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:13:08,710 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:12:57" (3/4) ... [2023-11-12 02:13:08,712 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:13:08,716 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2023-11-12 02:13:08,717 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-12 02:13:08,717 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-12 02:13:08,717 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-12 02:13:08,717 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-12 02:13:08,717 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2023-11-12 02:13:08,718 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-12 02:13:08,718 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2023-11-12 02:13:08,730 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-12 02:13:08,731 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-12 02:13:08,732 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-12 02:13:08,733 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:13:08,733 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:13:08,773 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((tmp == 1) && (pumpRunning == 0)) && (\result == 1)) && (2 <= waterLevel)) && (splverifierCounter == 0)) || (((((tmp == 1) && (pumpRunning == 0)) && (\result == 1)) && (splverifierCounter == 0)) && (waterLevel == 1))) || (((((tmp == 1) && (\result == 1)) && (2 <= waterLevel)) && (splverifierCounter == 0)) && !((0 == systemActive)))) [2023-11-12 02:13:08,812 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((tmp == 1) && (pumpRunning == 0)) && (\result == 1)) && (2 <= waterLevel)) && (splverifierCounter == 0)) || (((((tmp == 1) && (pumpRunning == 0)) && (\result == 1)) && (splverifierCounter == 0)) && (waterLevel == 1))) || (((((tmp == 1) && (\result == 1)) && (2 <= waterLevel)) && (splverifierCounter == 0)) && !((0 == systemActive)))) [2023-11-12 02:13:08,863 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:13:08,863 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:13:08,863 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:13:08,864 INFO L158 Benchmark]: Toolchain (without parser) took 12421.93ms. Allocated memory was 151.0MB in the beginning and 220.2MB in the end (delta: 69.2MB). Free memory was 107.2MB in the beginning and 78.3MB in the end (delta: 29.0MB). Peak memory consumption was 98.6MB. Max. memory is 16.1GB. [2023-11-12 02:13:08,864 INFO L158 Benchmark]: CDTParser took 0.66ms. Allocated memory is still 107.0MB. Free memory is still 52.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:13:08,865 INFO L158 Benchmark]: CACSL2BoogieTranslator took 655.22ms. Allocated memory is still 151.0MB. Free memory was 106.8MB in the beginning and 87.2MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:13:08,865 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.94ms. Allocated memory is still 151.0MB. Free memory was 87.2MB in the beginning and 84.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:13:08,865 INFO L158 Benchmark]: Boogie Preprocessor took 69.00ms. Allocated memory is still 151.0MB. Free memory was 84.7MB in the beginning and 83.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:13:08,866 INFO L158 Benchmark]: RCFGBuilder took 638.13ms. Allocated memory is still 151.0MB. Free memory was 83.0MB in the beginning and 110.0MB in the end (delta: -27.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 02:13:08,866 INFO L158 Benchmark]: TraceAbstraction took 10815.20ms. Allocated memory was 151.0MB in the beginning and 220.2MB in the end (delta: 69.2MB). Free memory was 109.4MB in the beginning and 86.6MB in the end (delta: 22.8MB). Peak memory consumption was 120.5MB. Max. memory is 16.1GB. [2023-11-12 02:13:08,867 INFO L158 Benchmark]: Witness Printer took 154.10ms. Allocated memory is still 220.2MB. Free memory was 86.6MB in the beginning and 78.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 02:13:08,869 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66ms. Allocated memory is still 107.0MB. Free memory is still 52.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 655.22ms. Allocated memory is still 151.0MB. Free memory was 106.8MB in the beginning and 87.2MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.94ms. Allocated memory is still 151.0MB. Free memory was 87.2MB in the beginning and 84.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.00ms. Allocated memory is still 151.0MB. Free memory was 84.7MB in the beginning and 83.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 638.13ms. Allocated memory is still 151.0MB. Free memory was 83.0MB in the beginning and 110.0MB in the end (delta: -27.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 10815.20ms. Allocated memory was 151.0MB in the beginning and 220.2MB in the end (delta: 69.2MB). Free memory was 109.4MB in the beginning and 86.6MB in the end (delta: 22.8MB). Peak memory consumption was 120.5MB. Max. memory is 16.1GB. * Witness Printer took 154.10ms. Allocated memory is still 220.2MB. Free memory was 86.6MB in the beginning and 78.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] - GenericResultAtLocation [Line: 121]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] - GenericResultAtLocation [Line: 369]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [369] - GenericResultAtLocation [Line: 397]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [397] - GenericResultAtLocation [Line: 435]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [435] - GenericResultAtLocation [Line: 444]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [444] - GenericResultAtLocation [Line: 540]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [540] - GenericResultAtLocation [Line: 906]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [906] * 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: 440]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 99 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.7s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1590 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1569 mSDsluCounter, 4216 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3003 mSDsCounter, 363 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2192 IncrementalHoareTripleChecker+Invalid, 2555 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 363 mSolverCounterUnsat, 1213 mSDtfsCounter, 2192 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 665 GetRequests, 537 SyntacticMatches, 13 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1659occurred in iteration=11, InterpolantAutomatonStates: 108, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 12 MinimizatonAttempts, 384 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 25 LocationsWithAnnotation, 1523 PreInvPairs, 1621 NumberOfFragments, 515 HoareAnnotationTreeSize, 1523 FomulaSimplifications, 1920 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 25 FomulaSimplificationsInter, 4203 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 996 NumberOfCodeBlocks, 996 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1069 ConstructedInterpolants, 0 QuantifiedInterpolants, 1909 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1153 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 378/432 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: 456]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: (((((((tmp == 1) && (pumpRunning == 0)) && (\result == 1)) && (2 <= waterLevel)) && (splverifierCounter == 0)) || (((((tmp == 1) && (pumpRunning == 0)) && (\result == 1)) && (splverifierCounter == 0)) && (waterLevel == 1))) || (((((tmp == 1) && (\result == 1)) && (2 <= waterLevel)) && (splverifierCounter == 0)) && !((0 == systemActive)))) - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2023-11-12 02:13:08,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f43472f-565f-452a-b8b3-199b91d4028a/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE