./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme --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 02fb1fa00f2030f7900be70496baf2f4c44344da378fa11ef09f1f26dc14ae9d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:57:53,658 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:57:53,766 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 11:57:53,773 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:57:53,774 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:57:53,802 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:57:53,803 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:57:53,804 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:57:53,805 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:57:53,806 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:57:53,806 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:57:53,807 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:57:53,808 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:57:53,809 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:57:53,809 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:57:53,810 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:57:53,811 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:57:53,811 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:57:53,812 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:57:53,813 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:57:53,813 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:57:53,814 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:57:53,814 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:57:53,815 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:57:53,815 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:57:53,816 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:57:53,816 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:57:53,817 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:57:53,818 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:57:53,818 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:57:53,819 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:57:53,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:57:53,819 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:57:53,820 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:57:53,820 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:57:53,820 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:57:53,821 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:57:53,821 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:57:53,821 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:57:53,822 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:57:53,822 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:57:53,822 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:57:53,823 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_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02fb1fa00f2030f7900be70496baf2f4c44344da378fa11ef09f1f26dc14ae9d [2023-11-26 11:57:54,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:57:54,156 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:57:54,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:57:54,162 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:57:54,162 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:57:54,164 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c [2023-11-26 11:57:57,485 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:57:57,841 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:57:57,841 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c [2023-11-26 11:57:57,857 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/data/0ccc5dc69/6d9e1cdcdd1743d0bafc48fee2fa8e82/FLAG509e29114 [2023-11-26 11:57:57,877 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/data/0ccc5dc69/6d9e1cdcdd1743d0bafc48fee2fa8e82 [2023-11-26 11:57:57,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:57:57,885 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:57:57,889 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:57:57,889 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:57:57,895 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:57:57,896 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:57:57" (1/1) ... [2023-11-26 11:57:57,897 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16dde453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:57, skipping insertion in model container [2023-11-26 11:57:57,897 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:57:57" (1/1) ... [2023-11-26 11:57:57,969 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:57:58,259 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_01ec81ff-69f4-4686-9917-e511e04b8f13/sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c[17174,17187] [2023-11-26 11:57:58,269 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:57:58,282 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:57:58,294 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2023-11-26 11:57:58,296 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [87] [2023-11-26 11:57:58,296 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [453] [2023-11-26 11:57:58,297 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [554] [2023-11-26 11:57:58,297 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [655] [2023-11-26 11:57:58,297 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [863] [2023-11-26 11:57:58,298 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [872] [2023-11-26 11:57:58,298 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [911] [2023-11-26 11:57:58,361 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_01ec81ff-69f4-4686-9917-e511e04b8f13/sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c[17174,17187] [2023-11-26 11:57:58,367 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:57:58,388 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:57:58,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:58 WrapperNode [2023-11-26 11:57:58,389 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:57:58,390 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:57:58,390 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:57:58,391 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:57:58,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:58" (1/1) ... [2023-11-26 11:57:58,416 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:58" (1/1) ... [2023-11-26 11:57:58,448 INFO L138 Inliner]: procedures = 56, calls = 101, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 196 [2023-11-26 11:57:58,449 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:57:58,450 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:57:58,450 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:57:58,450 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:57:58,464 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:58" (1/1) ... [2023-11-26 11:57:58,465 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:58" (1/1) ... [2023-11-26 11:57:58,500 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:58" (1/1) ... [2023-11-26 11:57:58,519 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 11:57:58,520 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:58" (1/1) ... [2023-11-26 11:57:58,520 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:58" (1/1) ... [2023-11-26 11:57:58,529 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:58" (1/1) ... [2023-11-26 11:57:58,536 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:58" (1/1) ... [2023-11-26 11:57:58,539 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:58" (1/1) ... [2023-11-26 11:57:58,541 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:58" (1/1) ... [2023-11-26 11:57:58,545 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:57:58,546 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:57:58,546 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:57:58,546 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:57:58,548 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:58" (1/1) ... [2023-11-26 11:57:58,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:57:58,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:58,600 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:58,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:57:58,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:57:58,644 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-26 11:57:58,644 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-26 11:57:58,644 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-26 11:57:58,645 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-26 11:57:58,645 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-26 11:57:58,645 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-26 11:57:58,645 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-26 11:57:58,645 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-26 11:57:58,645 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-26 11:57:58,645 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-26 11:57:58,645 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-11-26 11:57:58,646 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-11-26 11:57:58,646 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-11-26 11:57:58,646 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-11-26 11:57:58,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:57:58,646 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-26 11:57:58,646 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-26 11:57:58,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:57:58,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:57:58,771 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:57:58,773 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:57:59,149 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:57:59,240 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:57:59,241 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 11:57:59,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:57:59 BoogieIcfgContainer [2023-11-26 11:57:59,241 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:57:59,245 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:57:59,245 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:57:59,250 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:57:59,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:57:57" (1/3) ... [2023-11-26 11:57:59,251 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a538a7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:57:59, skipping insertion in model container [2023-11-26 11:57:59,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:58" (2/3) ... [2023-11-26 11:57:59,252 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a538a7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:57:59, skipping insertion in model container [2023-11-26 11:57:59,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:57:59" (3/3) ... [2023-11-26 11:57:59,253 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product46.cil.c [2023-11-26 11:57:59,278 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:57:59,278 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:57:59,344 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:57:59,353 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;@51a795e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:57:59,353 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:57:59,361 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 52 states have (on average 1.5192307692307692) internal successors, (79), 60 states have internal predecessors, (79), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-26 11:57:59,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-26 11:57:59,373 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:57:59,374 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:59,375 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:57:59,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:59,382 INFO L85 PathProgramCache]: Analyzing trace with hash -848922737, now seen corresponding path program 1 times [2023-11-26 11:57:59,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:59,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642272063] [2023-11-26 11:57:59,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:59,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:59,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:59,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:57:59,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:59,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:59,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:59,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642272063] [2023-11-26 11:57:59,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642272063] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:59,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:59,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:57:59,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345335789] [2023-11-26 11:57:59,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:59,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:57:59,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:59,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:57:59,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:57:59,770 INFO L87 Difference]: Start difference. First operand has 76 states, 52 states have (on average 1.5192307692307692) internal successors, (79), 60 states have internal predecessors, (79), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:57:59,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:57:59,844 INFO L93 Difference]: Finished difference Result 150 states and 215 transitions. [2023-11-26 11:57:59,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:57:59,847 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-11-26 11:57:59,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:57:59,860 INFO L225 Difference]: With dead ends: 150 [2023-11-26 11:57:59,860 INFO L226 Difference]: Without dead ends: 71 [2023-11-26 11:57:59,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:57:59,870 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:57:59,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:57:59,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-26 11:57:59,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2023-11-26 11:57:59,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 49 states have (on average 1.4081632653061225) internal successors, (69), 56 states have internal predecessors, (69), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-26 11:57:59,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 96 transitions. [2023-11-26 11:57:59,943 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 96 transitions. Word has length 17 [2023-11-26 11:57:59,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:57:59,944 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 96 transitions. [2023-11-26 11:57:59,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:57:59,945 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 96 transitions. [2023-11-26 11:57:59,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-26 11:57:59,948 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:57:59,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:59,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:57:59,949 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:57:59,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:59,950 INFO L85 PathProgramCache]: Analyzing trace with hash 2011924788, now seen corresponding path program 1 times [2023-11-26 11:57:59,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:59,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50726586] [2023-11-26 11:57:59,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:59,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:59,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:00,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-26 11:58:00,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:00,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:00,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:00,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50726586] [2023-11-26 11:58:00,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50726586] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:00,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:00,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:58:00,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131667397] [2023-11-26 11:58:00,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:00,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:58:00,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:00,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:58:00,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:00,151 INFO L87 Difference]: Start difference. First operand 71 states and 96 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:58:00,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:00,236 INFO L93 Difference]: Finished difference Result 115 states and 155 transitions. [2023-11-26 11:58:00,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:58:00,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-11-26 11:58:00,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:00,243 INFO L225 Difference]: With dead ends: 115 [2023-11-26 11:58:00,243 INFO L226 Difference]: Without dead ends: 63 [2023-11-26 11:58:00,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:00,246 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 11 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:00,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 135 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:58:00,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-26 11:58:00,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-11-26 11:58:00,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 44 states have (on average 1.4318181818181819) internal successors, (63), 51 states have internal predecessors, (63), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-26 11:58:00,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 85 transitions. [2023-11-26 11:58:00,280 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 85 transitions. Word has length 18 [2023-11-26 11:58:00,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:00,280 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 85 transitions. [2023-11-26 11:58:00,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:58:00,281 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 85 transitions. [2023-11-26 11:58:00,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-26 11:58:00,283 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:00,283 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] [2023-11-26 11:58:00,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:58:00,283 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:58:00,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:00,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1398174926, now seen corresponding path program 1 times [2023-11-26 11:58:00,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:00,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983424079] [2023-11-26 11:58:00,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:00,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:00,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:00,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:58:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:00,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:00,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:00,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983424079] [2023-11-26 11:58:00,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983424079] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:00,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:00,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:58:00,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53762861] [2023-11-26 11:58:00,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:00,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:58:00,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:00,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:58:00,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:00,421 INFO L87 Difference]: Start difference. First operand 63 states and 85 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (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) [2023-11-26 11:58:00,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:00,463 INFO L93 Difference]: Finished difference Result 124 states and 169 transitions. [2023-11-26 11:58:00,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:58:00,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (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 21 [2023-11-26 11:58:00,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:00,466 INFO L225 Difference]: With dead ends: 124 [2023-11-26 11:58:00,466 INFO L226 Difference]: Without dead ends: 63 [2023-11-26 11:58:00,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:00,469 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 80 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:00,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 72 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:58:00,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-26 11:58:00,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-11-26 11:58:00,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 51 states have internal predecessors, (62), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-26 11:58:00,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 84 transitions. [2023-11-26 11:58:00,483 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 84 transitions. Word has length 21 [2023-11-26 11:58:00,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:00,483 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 84 transitions. [2023-11-26 11:58:00,483 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), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:58:00,484 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 84 transitions. [2023-11-26 11:58:00,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-26 11:58:00,486 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:00,486 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:00,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:58:00,487 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:58:00,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:00,487 INFO L85 PathProgramCache]: Analyzing trace with hash -160001117, now seen corresponding path program 1 times [2023-11-26 11:58:00,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:00,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647784248] [2023-11-26 11:58:00,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:00,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:00,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:58:00,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:00,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:58:00,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:00,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-26 11:58:00,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:00,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:00,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:00,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647784248] [2023-11-26 11:58:00,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647784248] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:00,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:00,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:58:00,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915275962] [2023-11-26 11:58:00,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:00,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:58:00,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:00,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:58:00,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:58:00,619 INFO L87 Difference]: Start difference. First operand 63 states and 84 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 11:58:00,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:00,917 INFO L93 Difference]: Finished difference Result 194 states and 256 transitions. [2023-11-26 11:58:00,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:58:00,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 31 [2023-11-26 11:58:00,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:00,920 INFO L225 Difference]: With dead ends: 194 [2023-11-26 11:58:00,920 INFO L226 Difference]: Without dead ends: 133 [2023-11-26 11:58:00,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:58:00,924 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 166 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:00,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 198 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:58:00,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-11-26 11:58:00,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 127. [2023-11-26 11:58:00,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 90 states have (on average 1.3444444444444446) internal successors, (121), 98 states have internal predecessors, (121), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2023-11-26 11:58:00,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 162 transitions. [2023-11-26 11:58:00,953 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 162 transitions. Word has length 31 [2023-11-26 11:58:00,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:00,953 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 162 transitions. [2023-11-26 11:58:00,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 11:58:00,954 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 162 transitions. [2023-11-26 11:58:00,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-26 11:58:00,956 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:00,956 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] [2023-11-26 11:58:00,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:58:00,957 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:58:00,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:00,957 INFO L85 PathProgramCache]: Analyzing trace with hash 2099072617, now seen corresponding path program 1 times [2023-11-26 11:58:00,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:00,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126892279] [2023-11-26 11:58:00,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:00,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:01,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:58:01,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:01,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:58:01,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:01,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-26 11:58:01,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:01,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:01,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:01,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126892279] [2023-11-26 11:58:01,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126892279] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:01,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:01,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:58:01,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246077257] [2023-11-26 11:58:01,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:01,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:58:01,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:01,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:58:01,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:58:01,088 INFO L87 Difference]: Start difference. First operand 127 states and 162 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:58:01,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:01,364 INFO L93 Difference]: Finished difference Result 254 states and 335 transitions. [2023-11-26 11:58:01,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:58:01,365 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2023-11-26 11:58:01,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:01,377 INFO L225 Difference]: With dead ends: 254 [2023-11-26 11:58:01,378 INFO L226 Difference]: Without dead ends: 252 [2023-11-26 11:58:01,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:58:01,385 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 138 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:01,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 129 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:58:01,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2023-11-26 11:58:01,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 250. [2023-11-26 11:58:01,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 177 states have (on average 1.3276836158192091) internal successors, (235), 192 states have internal predecessors, (235), 36 states have call successors, (36), 30 states have call predecessors, (36), 36 states have return successors, (58), 38 states have call predecessors, (58), 36 states have call successors, (58) [2023-11-26 11:58:01,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 329 transitions. [2023-11-26 11:58:01,480 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 329 transitions. Word has length 36 [2023-11-26 11:58:01,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:01,481 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 329 transitions. [2023-11-26 11:58:01,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:58:01,482 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 329 transitions. [2023-11-26 11:58:01,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-26 11:58:01,488 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:01,488 INFO L195 NwaCegarLoop]: trace histogram [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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:01,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:58:01,489 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:58:01,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:01,490 INFO L85 PathProgramCache]: Analyzing trace with hash -334717103, now seen corresponding path program 1 times [2023-11-26 11:58:01,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:01,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231612062] [2023-11-26 11:58:01,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:01,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:01,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:58:01,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:01,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-26 11:58:01,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:01,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:58:01,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:01,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:58:01,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:01,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 11:58:01,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:01,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-26 11:58:01,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:01,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:58:01,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:01,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-26 11:58:01,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:01,771 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-26 11:58:01,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:01,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231612062] [2023-11-26 11:58:01,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231612062] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:58:01,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453317127] [2023-11-26 11:58:01,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:01,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:01,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:01,777 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:01,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:58:01,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:01,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:58:01,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:02,097 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:02,097 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:58:02,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453317127] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:02,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:58:02,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-11-26 11:58:02,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817788581] [2023-11-26 11:58:02,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:02,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:58:02,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:02,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:58:02,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:58:02,100 INFO L87 Difference]: Start difference. First operand 250 states and 329 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-26 11:58:02,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:02,195 INFO L93 Difference]: Finished difference Result 500 states and 657 transitions. [2023-11-26 11:58:02,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:58:02,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 78 [2023-11-26 11:58:02,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:02,202 INFO L225 Difference]: With dead ends: 500 [2023-11-26 11:58:02,202 INFO L226 Difference]: Without dead ends: 252 [2023-11-26 11:58:02,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:58:02,214 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 40 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:02,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 163 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:58:02,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2023-11-26 11:58:02,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 250. [2023-11-26 11:58:02,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 177 states have (on average 1.3163841807909604) internal successors, (233), 192 states have internal predecessors, (233), 36 states have call successors, (36), 30 states have call predecessors, (36), 36 states have return successors, (50), 38 states have call predecessors, (50), 36 states have call successors, (50) [2023-11-26 11:58:02,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 319 transitions. [2023-11-26 11:58:02,275 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 319 transitions. Word has length 78 [2023-11-26 11:58:02,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:02,276 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 319 transitions. [2023-11-26 11:58:02,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-26 11:58:02,277 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 319 transitions. [2023-11-26 11:58:02,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-26 11:58:02,280 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:02,281 INFO L195 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:02,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:02,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-26 11:58:02,488 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:58:02,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:02,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1482978683, now seen corresponding path program 1 times [2023-11-26 11:58:02,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:02,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885219992] [2023-11-26 11:58:02,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:02,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:02,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:58:02,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:02,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-26 11:58:02,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:02,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:58:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:02,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-26 11:58:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:02,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-26 11:58:02,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:02,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:58:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:02,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-26 11:58:02,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:02,817 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-26 11:58:02,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:02,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885219992] [2023-11-26 11:58:02,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885219992] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:58:02,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581352603] [2023-11-26 11:58:02,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:02,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:02,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:02,820 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:02,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:58:02,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:02,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 11:58:02,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:02,995 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 11:58:02,996 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:58:02,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581352603] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:02,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:58:02,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2023-11-26 11:58:02,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339568223] [2023-11-26 11:58:02,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:02,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:58:02,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:02,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:58:02,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:58:02,999 INFO L87 Difference]: Start difference. First operand 250 states and 319 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-26 11:58:03,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:03,086 INFO L93 Difference]: Finished difference Result 435 states and 552 transitions. [2023-11-26 11:58:03,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:58:03,086 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) Word has length 71 [2023-11-26 11:58:03,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:03,088 INFO L225 Difference]: With dead ends: 435 [2023-11-26 11:58:03,089 INFO L226 Difference]: Without dead ends: 187 [2023-11-26 11:58:03,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:58:03,090 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 46 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:03,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 200 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:58:03,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2023-11-26 11:58:03,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 180. [2023-11-26 11:58:03,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 125 states have (on average 1.28) internal successors, (160), 137 states have internal predecessors, (160), 27 states have call successors, (27), 23 states have call predecessors, (27), 27 states have return successors, (34), 27 states have call predecessors, (34), 27 states have call successors, (34) [2023-11-26 11:58:03,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 221 transitions. [2023-11-26 11:58:03,113 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 221 transitions. Word has length 71 [2023-11-26 11:58:03,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:03,113 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 221 transitions. [2023-11-26 11:58:03,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-26 11:58:03,113 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 221 transitions. [2023-11-26 11:58:03,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-26 11:58:03,115 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:03,115 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1] [2023-11-26 11:58:03,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-26 11:58:03,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-26 11:58:03,321 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:58:03,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:03,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1575201316, now seen corresponding path program 1 times [2023-11-26 11:58:03,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:03,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677666159] [2023-11-26 11:58:03,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:03,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:03,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:03,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:58:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:03,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-26 11:58:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:03,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:58:03,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:03,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:58:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:03,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 11:58:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:03,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-26 11:58:03,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:03,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:58:03,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:03,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-26 11:58:03,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:03,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:58:03,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:03,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-26 11:58:03,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:03,502 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-26 11:58:03,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:03,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677666159] [2023-11-26 11:58:03,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677666159] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:58:03,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942673600] [2023-11-26 11:58:03,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:03,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:03,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:03,504 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:03,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 11:58:03,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:03,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 11:58:03,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:03,662 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-26 11:58:03,662 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:58:03,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942673600] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:03,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:58:03,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2023-11-26 11:58:03,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151732660] [2023-11-26 11:58:03,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:03,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:58:03,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:03,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:58:03,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:58:03,666 INFO L87 Difference]: Start difference. First operand 180 states and 221 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-26 11:58:03,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:03,719 INFO L93 Difference]: Finished difference Result 362 states and 450 transitions. [2023-11-26 11:58:03,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:58:03,719 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2023-11-26 11:58:03,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:03,722 INFO L225 Difference]: With dead ends: 362 [2023-11-26 11:58:03,722 INFO L226 Difference]: Without dead ends: 184 [2023-11-26 11:58:03,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:58:03,723 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 2 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:03,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 210 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:58:03,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-11-26 11:58:03,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 182. [2023-11-26 11:58:03,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 127 states have (on average 1.2755905511811023) internal successors, (162), 139 states have internal predecessors, (162), 27 states have call successors, (27), 23 states have call predecessors, (27), 27 states have return successors, (34), 27 states have call predecessors, (34), 27 states have call successors, (34) [2023-11-26 11:58:03,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 223 transitions. [2023-11-26 11:58:03,744 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 223 transitions. Word has length 84 [2023-11-26 11:58:03,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:03,744 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 223 transitions. [2023-11-26 11:58:03,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-26 11:58:03,745 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 223 transitions. [2023-11-26 11:58:03,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-26 11:58:03,746 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:03,746 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1] [2023-11-26 11:58:03,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:03,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-26 11:58:03,953 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:58:03,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:03,953 INFO L85 PathProgramCache]: Analyzing trace with hash 843233890, now seen corresponding path program 1 times [2023-11-26 11:58:03,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:03,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817554071] [2023-11-26 11:58:03,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:03,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:03,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:04,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:58:04,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:04,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-26 11:58:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:04,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:58:04,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:04,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:58:04,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:04,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 11:58:04,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:04,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-26 11:58:04,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:04,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:58:04,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:04,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-26 11:58:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:04,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:58:04,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:04,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-26 11:58:04,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:04,261 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-26 11:58:04,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:04,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817554071] [2023-11-26 11:58:04,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817554071] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:58:04,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367766962] [2023-11-26 11:58:04,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:04,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:04,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:04,265 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:04,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 11:58:04,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:04,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:58:04,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:04,394 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-26 11:58:04,394 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:58:04,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367766962] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:04,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:58:04,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 11 [2023-11-26 11:58:04,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883513521] [2023-11-26 11:58:04,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:04,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:58:04,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:04,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:58:04,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:58:04,397 INFO L87 Difference]: Start difference. First operand 182 states and 223 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-26 11:58:04,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:04,457 INFO L93 Difference]: Finished difference Result 369 states and 458 transitions. [2023-11-26 11:58:04,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:58:04,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2023-11-26 11:58:04,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:04,459 INFO L225 Difference]: With dead ends: 369 [2023-11-26 11:58:04,460 INFO L226 Difference]: Without dead ends: 189 [2023-11-26 11:58:04,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:58:04,461 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 6 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:04,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 209 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:58:04,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2023-11-26 11:58:04,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 184. [2023-11-26 11:58:04,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 129 states have (on average 1.2713178294573644) internal successors, (164), 141 states have internal predecessors, (164), 27 states have call successors, (27), 23 states have call predecessors, (27), 27 states have return successors, (34), 27 states have call predecessors, (34), 27 states have call successors, (34) [2023-11-26 11:58:04,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 225 transitions. [2023-11-26 11:58:04,482 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 225 transitions. Word has length 84 [2023-11-26 11:58:04,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:04,482 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 225 transitions. [2023-11-26 11:58:04,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-26 11:58:04,483 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 225 transitions. [2023-11-26 11:58:04,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-26 11:58:04,484 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:04,485 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1] [2023-11-26 11:58:04,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:04,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:04,691 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:58:04,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:04,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1797174048, now seen corresponding path program 1 times [2023-11-26 11:58:04,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:04,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202883487] [2023-11-26 11:58:04,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:04,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:04,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:58:04,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:04,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-26 11:58:04,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:04,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:58:05,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:05,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:58:05,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:05,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 11:58:05,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:05,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-26 11:58:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:05,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:58:05,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:05,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-26 11:58:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:05,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:58:05,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:05,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-26 11:58:05,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:05,117 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-26 11:58:05,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:05,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202883487] [2023-11-26 11:58:05,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202883487] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:58:05,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891534359] [2023-11-26 11:58:05,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:05,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:05,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:05,120 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:05,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 11:58:05,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:05,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:58:05,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:05,432 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 11:58:05,432 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:58:05,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891534359] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:05,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:58:05,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17 [2023-11-26 11:58:05,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596128154] [2023-11-26 11:58:05,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:05,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:58:05,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:05,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:58:05,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2023-11-26 11:58:05,435 INFO L87 Difference]: Start difference. First operand 184 states and 225 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 5 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-26 11:58:05,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:05,814 INFO L93 Difference]: Finished difference Result 576 states and 757 transitions. [2023-11-26 11:58:05,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:58:05,814 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 5 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) Word has length 84 [2023-11-26 11:58:05,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:05,820 INFO L225 Difference]: With dead ends: 576 [2023-11-26 11:58:05,820 INFO L226 Difference]: Without dead ends: 394 [2023-11-26 11:58:05,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2023-11-26 11:58:05,822 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 181 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:05,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 174 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:58:05,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2023-11-26 11:58:05,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 387. [2023-11-26 11:58:05,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 274 states have (on average 1.2773722627737227) internal successors, (350), 293 states have internal predecessors, (350), 60 states have call successors, (60), 54 states have call predecessors, (60), 52 states have return successors, (89), 56 states have call predecessors, (89), 60 states have call successors, (89) [2023-11-26 11:58:05,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 499 transitions. [2023-11-26 11:58:05,886 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 499 transitions. Word has length 84 [2023-11-26 11:58:05,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:05,886 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 499 transitions. [2023-11-26 11:58:05,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 5 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-26 11:58:05,887 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 499 transitions. [2023-11-26 11:58:05,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-26 11:58:05,889 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:05,889 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:05,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:06,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-26 11:58:06,097 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:58:06,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:06,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1281223878, now seen corresponding path program 1 times [2023-11-26 11:58:06,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:06,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592850449] [2023-11-26 11:58:06,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:06,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:06,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:06,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:58:06,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:06,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:58:06,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:06,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-26 11:58:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:06,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:58:06,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:06,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:58:06,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:06,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 11:58:06,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:06,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-26 11:58:06,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:06,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:58:06,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:06,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-26 11:58:06,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:06,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:58:06,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:06,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-26 11:58:06,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:06,545 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-26 11:58:06,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:06,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592850449] [2023-11-26 11:58:06,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592850449] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:58:06,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [257216699] [2023-11-26 11:58:06,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:06,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:06,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:06,548 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:06,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 11:58:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:06,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-26 11:58:06,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:06,871 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-26 11:58:06,871 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:58:07,043 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-26 11:58:07,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [257216699] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-26 11:58:07,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:58:07,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13, 5] total 15 [2023-11-26 11:58:07,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001964902] [2023-11-26 11:58:07,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:07,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:58:07,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:07,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:58:07,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-11-26 11:58:07,049 INFO L87 Difference]: Start difference. First operand 387 states and 499 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:58:07,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:07,251 INFO L93 Difference]: Finished difference Result 1111 states and 1466 transitions. [2023-11-26 11:58:07,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:58:07,251 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 88 [2023-11-26 11:58:07,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:07,257 INFO L225 Difference]: With dead ends: 1111 [2023-11-26 11:58:07,257 INFO L226 Difference]: Without dead ends: 726 [2023-11-26 11:58:07,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 195 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2023-11-26 11:58:07,259 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 52 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:07,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 328 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:58:07,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2023-11-26 11:58:07,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 686. [2023-11-26 11:58:07,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 482 states have (on average 1.2427385892116183) internal successors, (599), 516 states have internal predecessors, (599), 108 states have call successors, (108), 97 states have call predecessors, (108), 95 states have return successors, (163), 100 states have call predecessors, (163), 108 states have call successors, (163) [2023-11-26 11:58:07,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 870 transitions. [2023-11-26 11:58:07,347 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 870 transitions. Word has length 88 [2023-11-26 11:58:07,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:07,347 INFO L495 AbstractCegarLoop]: Abstraction has 686 states and 870 transitions. [2023-11-26 11:58:07,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:58:07,348 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 870 transitions. [2023-11-26 11:58:07,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-26 11:58:07,351 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:07,351 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:07,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:07,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:07,558 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:58:07,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:07,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1329961962, now seen corresponding path program 1 times [2023-11-26 11:58:07,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:07,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886172544] [2023-11-26 11:58:07,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:07,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:07,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:58:07,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:07,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 11:58:07,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:07,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-26 11:58:07,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:07,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-26 11:58:07,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:07,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:58:07,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:07,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:58:07,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:07,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 11:58:08,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:08,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-26 11:58:08,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:08,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:58:08,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:08,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-26 11:58:08,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:08,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:58:08,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:08,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-26 11:58:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:08,019 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-26 11:58:08,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:08,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886172544] [2023-11-26 11:58:08,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886172544] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:58:08,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97071694] [2023-11-26 11:58:08,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:08,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:08,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:08,021 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:08,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 11:58:08,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:08,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 11:58:08,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:08,343 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-26 11:58:08,344 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:58:08,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97071694] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:08,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:58:08,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16] total 22 [2023-11-26 11:58:08,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843709262] [2023-11-26 11:58:08,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:08,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:58:08,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:08,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:58:08,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2023-11-26 11:58:08,347 INFO L87 Difference]: Start difference. First operand 686 states and 870 transitions. Second operand has 8 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-26 11:58:08,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:08,637 INFO L93 Difference]: Finished difference Result 1338 states and 1706 transitions. [2023-11-26 11:58:08,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:58:08,638 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) Word has length 92 [2023-11-26 11:58:08,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:08,644 INFO L225 Difference]: With dead ends: 1338 [2023-11-26 11:58:08,644 INFO L226 Difference]: Without dead ends: 654 [2023-11-26 11:58:08,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2023-11-26 11:58:08,648 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 53 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:08,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 685 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:58:08,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2023-11-26 11:58:08,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 650. [2023-11-26 11:58:08,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 458 states have (on average 1.224890829694323) internal successors, (561), 486 states have internal predecessors, (561), 104 states have call successors, (104), 93 states have call predecessors, (104), 87 states have return successors, (144), 93 states have call predecessors, (144), 104 states have call successors, (144) [2023-11-26 11:58:08,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 809 transitions. [2023-11-26 11:58:08,771 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 809 transitions. Word has length 92 [2023-11-26 11:58:08,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:08,772 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 809 transitions. [2023-11-26 11:58:08,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-26 11:58:08,773 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 809 transitions. [2023-11-26 11:58:08,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-26 11:58:08,776 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:08,777 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 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, 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] [2023-11-26 11:58:08,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:08,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:08,984 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:58:08,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:08,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1551953280, now seen corresponding path program 1 times [2023-11-26 11:58:08,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:08,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837475068] [2023-11-26 11:58:08,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:08,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:09,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:09,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:58:09,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:09,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:58:09,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:09,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-26 11:58:09,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:09,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:58:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:09,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:58:09,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:09,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 11:58:09,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:09,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-26 11:58:09,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:09,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-26 11:58:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:09,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:58:09,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:09,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:58:09,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:09,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:58:09,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:09,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:58:09,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:09,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-26 11:58:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:09,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-26 11:58:09,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:09,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-26 11:58:09,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:09,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:58:09,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:09,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-26 11:58:09,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:09,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:58:09,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:09,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-26 11:58:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:09,399 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 54 proven. 7 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-11-26 11:58:09,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:09,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837475068] [2023-11-26 11:58:09,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837475068] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:58:09,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130668901] [2023-11-26 11:58:09,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:09,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:09,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:09,401 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:09,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-26 11:58:09,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:09,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 11:58:09,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:09,703 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-26 11:58:09,704 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:58:09,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [130668901] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:09,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:58:09,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 22 [2023-11-26 11:58:09,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047633502] [2023-11-26 11:58:09,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:09,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:58:09,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:09,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:58:09,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2023-11-26 11:58:09,707 INFO L87 Difference]: Start difference. First operand 650 states and 809 transitions. Second operand has 8 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 3 states have call successors, (17), 3 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-26 11:58:09,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:09,949 INFO L93 Difference]: Finished difference Result 1081 states and 1340 transitions. [2023-11-26 11:58:09,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:58:09,950 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 3 states have call successors, (17), 3 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) Word has length 135 [2023-11-26 11:58:09,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:09,951 INFO L225 Difference]: With dead ends: 1081 [2023-11-26 11:58:09,951 INFO L226 Difference]: Without dead ends: 0 [2023-11-26 11:58:09,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2023-11-26 11:58:09,956 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 50 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:09,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 594 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:58:09,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-26 11:58:09,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-26 11:58:09,957 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) [2023-11-26 11:58:09,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-26 11:58:09,958 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 135 [2023-11-26 11:58:09,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:09,958 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:58:09,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 3 states have call successors, (17), 3 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-26 11:58:09,959 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-26 11:58:09,959 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-26 11:58:09,962 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 11:58:09,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:10,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-26 11:58:10,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-26 11:58:14,087 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 688 694) no Hoare annotation was computed. [2023-11-26 11:58:14,088 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 688 694) the Hoare annotation is: true [2023-11-26 11:58:14,088 INFO L899 garLoopResultBuilder]: For program point L491-1(lines 487 498) no Hoare annotation was computed. [2023-11-26 11:58:14,089 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 487 498) the Hoare annotation is: (let ((.cse0 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse2 (= ~methaneLevelCritical~0 0)) (.cse1 (not (= ~pumpRunning~0 0))) (.cse3 (not (= 1 ~systemActive~0))) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (< ~pumpRunning~0 1) .cse0 .cse2 .cse3 .cse4) (or (<= 1 ~methaneLevelCritical~0) .cse1 .cse3 (< |old(~methaneLevelCritical~0)| 1) .cse4))) [2023-11-26 11:58:14,089 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 487 498) no Hoare annotation was computed. [2023-11-26 11:58:14,089 INFO L899 garLoopResultBuilder]: For program point L894(lines 894 904) no Hoare annotation was computed. [2023-11-26 11:58:14,089 INFO L899 garLoopResultBuilder]: For program point L890(lines 890 907) no Hoare annotation was computed. [2023-11-26 11:58:14,089 INFO L899 garLoopResultBuilder]: For program point L890-1(lines 882 910) no Hoare annotation was computed. [2023-11-26 11:58:14,089 INFO L899 garLoopResultBuilder]: For program point L895(lines 895 901) no Hoare annotation was computed. [2023-11-26 11:58:14,090 INFO L899 garLoopResultBuilder]: For program point L668-1(lines 667 686) no Hoare annotation was computed. [2023-11-26 11:58:14,090 INFO L899 garLoopResultBuilder]: For program point L730(lines 730 738) no Hoare annotation was computed. [2023-11-26 11:58:14,090 INFO L899 garLoopResultBuilder]: For program point L726(lines 726 743) no Hoare annotation was computed. [2023-11-26 11:58:14,090 INFO L895 garLoopResultBuilder]: At program point L888(line 888) the Hoare annotation is: (let ((.cse13 (<= 2 ~waterLevel~0)) (.cse12 (= ~methAndRunningLastTime~0 0)) (.cse7 (not (= |old(~pumpRunning~0)| 0))) (.cse16 (= ~pumpRunning~0 0)) (.cse15 (= 1 ~systemActive~0)) (.cse5 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse2 (and .cse7 .cse16 .cse15 .cse5)) (.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse9 (and .cse16 .cse12 .cse5)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse1 (< |old(~waterLevel~0)| 2)) (.cse14 (and .cse16 .cse12 .cse13 .cse5)) (.cse11 (< 1 |old(~waterLevel~0)|)) (.cse8 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (not .cse15)) (.cse6 (< |old(~pumpRunning~0)| 1)) (.cse10 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5) .cse6) (or .cse7 .cse8 .cse0 .cse9 .cse10) (or .cse8 .cse0 .cse2 .cse6 .cse10) (or .cse11 (and .cse4 .cse12 .cse5) .cse8 .cse0 .cse3 .cse9 .cse6) (or .cse11 .cse7 .cse8 .cse0 .cse3 .cse9) (or .cse7 (and (<= 1 ~pumpRunning~0) .cse12 .cse13 .cse5) .cse8 .cse0 .cse1 .cse3 .cse14) (or .cse7 .cse8 .cse0 .cse1 .cse14 .cse10) (or .cse11 .cse8 .cse12 .cse0 .cse6 .cse10)))) [2023-11-26 11:58:14,091 INFO L899 garLoopResultBuilder]: For program point L888-1(line 888) no Hoare annotation was computed. [2023-11-26 11:58:14,091 INFO L899 garLoopResultBuilder]: For program point L467(lines 467 471) no Hoare annotation was computed. [2023-11-26 11:58:14,091 INFO L899 garLoopResultBuilder]: For program point L467-2(lines 463 474) no Hoare annotation was computed. [2023-11-26 11:58:14,091 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 664 687) the Hoare annotation is: (let ((.cse7 (= ~methAndRunningLastTime~0 0)) (.cse8 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse5 (< ~methaneLevelCritical~0 1)) (.cse2 (<= 2 ~waterLevel~0)) (.cse3 (< |old(~waterLevel~0)| 2)) (.cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse9 (not (= |old(~pumpRunning~0)| 0))) (.cse10 (and (= ~pumpRunning~0 0) .cse7 .cse8)) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse11 (not (= ~methaneLevelCritical~0 0))) (.cse4 (< |old(~pumpRunning~0)| 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or (and .cse6 .cse7 .cse8) .cse0 .cse1 .cse4 .cse5) (or .cse9 .cse0 .cse1 .cse10 .cse5) (or .cse9 .cse0 .cse1 .cse2 .cse3 .cse5) (or .cse9 .cse0 .cse1 .cse2 .cse3 .cse11) (or .cse1 (and .cse6 .cse2 .cse8) .cse3 .cse11 .cse4) (or .cse0 .cse1 .cse11 (and .cse6 .cse8) .cse4) (or .cse9 .cse0 .cse1 .cse11 .cse10) (or .cse0 .cse7 .cse1 .cse11 .cse4)))) [2023-11-26 11:58:14,092 INFO L899 garLoopResultBuilder]: For program point L868(line 868) no Hoare annotation was computed. [2023-11-26 11:58:14,092 INFO L895 garLoopResultBuilder]: At program point L736(line 736) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse2 (< |old(~pumpRunning~0)| 1)) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or (< 1 |old(~waterLevel~0)|) (and .cse4 (= ~methAndRunningLastTime~0 0) .cse5) .cse0 .cse1 .cse6 .cse2) (or .cse1 (< |old(~waterLevel~0)| 2) .cse6 (and .cse4 .cse5) .cse2) (or .cse7 .cse0 .cse1 .cse6) (or .cse7 .cse0 .cse1 .cse3))) [2023-11-26 11:58:14,092 INFO L895 garLoopResultBuilder]: At program point L728(line 728) the Hoare annotation is: (let ((.cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse7 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse0 (and .cse6 (= ~methAndRunningLastTime~0 0) .cse7)) (.cse3 (< |old(~pumpRunning~0)| 1)) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse8 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse4 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (< 1 |old(~waterLevel~0)|) .cse0 .cse1 .cse2 .cse5 .cse3) (or .cse2 (< |old(~waterLevel~0)| 2) .cse5 (and .cse6 .cse7) .cse3) (or .cse8 .cse1 .cse2 .cse5) (or .cse8 .cse1 .cse2 .cse4)))) [2023-11-26 11:58:14,093 INFO L899 garLoopResultBuilder]: For program point L728-1(line 728) no Hoare annotation was computed. [2023-11-26 11:58:14,093 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 664 687) no Hoare annotation was computed. [2023-11-26 11:58:14,093 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 868) no Hoare annotation was computed. [2023-11-26 11:58:14,093 INFO L895 garLoopResultBuilder]: At program point L741(line 741) the Hoare annotation is: (let ((.cse3 (< ~methaneLevelCritical~0 1)) (.cse7 (<= 2 ~waterLevel~0)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse6 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (<= ~waterLevel~0 |old(~waterLevel~0)|))) (.cse1 (not (= 1 ~systemActive~0))) (.cse8 (< |old(~waterLevel~0)| 2)) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse2 (< |old(~pumpRunning~0)| 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse2) (or .cse5 .cse0 .cse1 .cse6 .cse3) (or .cse5 .cse0 .cse1 .cse7 .cse8 .cse3) (or .cse5 .cse0 .cse1 .cse7 .cse8 .cse4) (or .cse5 .cse0 .cse1 .cse4 .cse6) (or .cse1 .cse8 .cse4 .cse2))) [2023-11-26 11:58:14,094 INFO L899 garLoopResultBuilder]: For program point L741-1(lines 722 746) no Hoare annotation was computed. [2023-11-26 11:58:14,094 INFO L899 garLoopResultBuilder]: For program point L675-1(lines 675 681) no Hoare annotation was computed. [2023-11-26 11:58:14,094 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 557 586) no Hoare annotation was computed. [2023-11-26 11:58:14,094 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 575) no Hoare annotation was computed. [2023-11-26 11:58:14,094 INFO L902 garLoopResultBuilder]: At program point L571-1(lines 571 575) the Hoare annotation is: true [2023-11-26 11:58:14,094 INFO L902 garLoopResultBuilder]: At program point L567-2(lines 567 581) the Hoare annotation is: true [2023-11-26 11:58:14,095 INFO L902 garLoopResultBuilder]: At program point L563(line 563) the Hoare annotation is: true [2023-11-26 11:58:14,095 INFO L899 garLoopResultBuilder]: For program point L563-1(line 563) no Hoare annotation was computed. [2023-11-26 11:58:14,095 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 557 586) the Hoare annotation is: true [2023-11-26 11:58:14,095 INFO L899 garLoopResultBuilder]: For program point L582(lines 557 586) no Hoare annotation was computed. [2023-11-26 11:58:14,095 INFO L899 garLoopResultBuilder]: For program point L578(line 578) no Hoare annotation was computed. [2023-11-26 11:58:14,095 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 499 507) the Hoare annotation is: true [2023-11-26 11:58:14,096 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 499 507) no Hoare annotation was computed. [2023-11-26 11:58:14,096 INFO L899 garLoopResultBuilder]: For program point L960(lines 960 964) no Hoare annotation was computed. [2023-11-26 11:58:14,096 INFO L899 garLoopResultBuilder]: For program point L642-2(lines 642 649) no Hoare annotation was computed. [2023-11-26 11:58:14,096 INFO L895 garLoopResultBuilder]: At program point L960-2(lines 952 965) the Hoare annotation is: (let ((.cse5 (<= 1 ~methaneLevelCritical~0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse6 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse2 (= ~methaneLevelCritical~0 0)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse5 .cse3 .cse4) (and .cse6 .cse1 .cse5 .cse3 .cse4) (and .cse0 .cse2 (<= 2 ~waterLevel~0) .cse3 .cse4) (and .cse6 .cse1 .cse2 .cse3 .cse4))) [2023-11-26 11:58:14,096 INFO L899 garLoopResultBuilder]: For program point L923(lines 922 969) no Hoare annotation was computed. [2023-11-26 11:58:14,097 INFO L899 garLoopResultBuilder]: For program point L952(lines 952 965) no Hoare annotation was computed. [2023-11-26 11:58:14,097 INFO L895 garLoopResultBuilder]: At program point L944(line 944) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 1 ~pumpRunning~0) .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 (<= 1 ~methaneLevelCritical~0) .cse2 .cse3) (and .cse4 .cse0 .cse1 .cse2 .cse3))) [2023-11-26 11:58:14,097 INFO L899 garLoopResultBuilder]: For program point L973(lines 912 977) no Hoare annotation was computed. [2023-11-26 11:58:14,097 INFO L899 garLoopResultBuilder]: For program point L932(lines 932 938) no Hoare annotation was computed. [2023-11-26 11:58:14,097 INFO L899 garLoopResultBuilder]: For program point L932-1(lines 932 938) no Hoare annotation was computed. [2023-11-26 11:58:14,098 INFO L895 garLoopResultBuilder]: At program point L970(lines 921 971) the Hoare annotation is: false [2023-11-26 11:58:14,098 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-26 11:58:14,098 INFO L899 garLoopResultBuilder]: For program point L942(lines 942 948) no Hoare annotation was computed. [2023-11-26 11:58:14,098 INFO L899 garLoopResultBuilder]: For program point L942-1(lines 942 948) no Hoare annotation was computed. [2023-11-26 11:58:14,098 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-26 11:58:14,098 INFO L895 garLoopResultBuilder]: At program point L967(lines 922 969) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 1 ~pumpRunning~0) .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 (<= 1 ~methaneLevelCritical~0) .cse2 .cse3) (and .cse4 .cse0 .cse1 .cse2 .cse3))) [2023-11-26 11:58:14,099 INFO L895 garLoopResultBuilder]: At program point L934(line 934) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 1 ~pumpRunning~0) .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 (<= 1 ~methaneLevelCritical~0) .cse2 .cse3) (and .cse4 .cse0 .cse1 .cse2 .cse3))) [2023-11-26 11:58:14,099 INFO L899 garLoopResultBuilder]: For program point L642(lines 642 649) no Hoare annotation was computed. [2023-11-26 11:58:14,099 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 475 486) no Hoare annotation was computed. [2023-11-26 11:58:14,099 INFO L899 garLoopResultBuilder]: For program point L479-1(lines 475 486) no Hoare annotation was computed. [2023-11-26 11:58:14,100 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 475 486) the Hoare annotation is: (let ((.cse7 (<= 2 ~waterLevel~0)) (.cse3 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse0 (< ~pumpRunning~0 1)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse9 (and .cse7 .cse3)) (.cse5 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse8 (< |old(~waterLevel~0)| 2)) (.cse4 (not (= ~methAndRunningLastTime~0 0))) (.cse6 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse1 .cse3 .cse4 .cse6) (or .cse5 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse1 .cse7 .cse8 .cse2 .cse4) (or .cse9 .cse0 .cse1 .cse8 .cse2 .cse4) (or .cse9 .cse5 .cse1 .cse8 .cse4 .cse6)))) [2023-11-26 11:58:14,100 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 712) no Hoare annotation was computed. [2023-11-26 11:58:14,100 INFO L899 garLoopResultBuilder]: For program point L700(lines 700 717) no Hoare annotation was computed. [2023-11-26 11:58:14,100 INFO L899 garLoopResultBuilder]: For program point L762(lines 762 768) no Hoare annotation was computed. [2023-11-26 11:58:14,100 INFO L895 garLoopResultBuilder]: At program point L760(line 760) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse2 (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0))) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 (< ~methaneLevelCritical~0 1)) (or .cse1 .cse4 (< |old(~pumpRunning~0)| 1)) (or .cse0 .cse1 .cse4 .cse2 .cse3))) [2023-11-26 11:58:14,100 INFO L899 garLoopResultBuilder]: For program point L762-2(lines 755 771) no Hoare annotation was computed. [2023-11-26 11:58:14,101 INFO L899 garLoopResultBuilder]: For program point L760-1(line 760) no Hoare annotation was computed. [2023-11-26 11:58:14,101 INFO L899 garLoopResultBuilder]: For program point L845(lines 845 849) no Hoare annotation was computed. [2023-11-26 11:58:14,101 INFO L899 garLoopResultBuilder]: For program point L845-2(lines 845 849) no Hoare annotation was computed. [2023-11-26 11:58:14,101 INFO L895 garLoopResultBuilder]: At program point L715(line 715) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1 (< |old(~pumpRunning~0)| 1)) (or .cse2 .cse0 .cse1 .cse3) (or .cse2 .cse0 .cse3 (< ~methaneLevelCritical~0 1)))) [2023-11-26 11:58:14,101 INFO L899 garLoopResultBuilder]: For program point L715-1(lines 696 720) no Hoare annotation was computed. [2023-11-26 11:58:14,102 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 696 720) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1 (< |old(~pumpRunning~0)| 1)) (or .cse2 .cse3 .cse0 .cse1 .cse4) (or .cse2 .cse3 .cse0 .cse4 (< ~methaneLevelCritical~0 1)))) [2023-11-26 11:58:14,102 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 540 553) no Hoare annotation was computed. [2023-11-26 11:58:14,102 INFO L899 garLoopResultBuilder]: For program point L544(lines 544 550) no Hoare annotation was computed. [2023-11-26 11:58:14,102 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 696 720) no Hoare annotation was computed. [2023-11-26 11:58:14,102 INFO L895 garLoopResultBuilder]: At program point L710(line 710) the Hoare annotation is: (let ((.cse5 (= 1 ~systemActive~0)) (.cse6 (= |old(~pumpRunning~0)| 0))) (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not .cse6)) (.cse0 (not .cse5)) (.cse3 (and (= ~pumpRunning~0 0) .cse5 .cse6 (= |processEnvironment__wrappee__methaneQuery_~tmp~4#1| 0))) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 (< |old(~pumpRunning~0)| 1)) (or .cse2 .cse0 .cse1 .cse3 .cse4) (or .cse2 .cse0 .cse3 .cse4 (< ~methaneLevelCritical~0 1))))) [2023-11-26 11:58:14,103 INFO L902 garLoopResultBuilder]: At program point L785(line 785) the Hoare annotation is: true [2023-11-26 11:58:14,103 INFO L899 garLoopResultBuilder]: For program point L785-1(line 785) no Hoare annotation was computed. [2023-11-26 11:58:14,103 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 780 790) no Hoare annotation was computed. [2023-11-26 11:58:14,103 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 780 790) the Hoare annotation is: true [2023-11-26 11:58:14,106 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:14,109 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:58:14,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:58:14 BoogieIcfgContainer [2023-11-26 11:58:14,124 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:58:14,124 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:58:14,125 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:58:14,125 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:58:14,125 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:57:59" (3/4) ... [2023-11-26 11:58:14,128 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 11:58:14,132 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-26 11:58:14,132 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-26 11:58:14,132 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-26 11:58:14,133 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-26 11:58:14,133 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2023-11-26 11:58:14,133 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-26 11:58:14,133 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2023-11-26 11:58:14,134 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2023-11-26 11:58:14,143 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2023-11-26 11:58:14,144 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-26 11:58:14,144 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-26 11:58:14,145 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 11:58:14,146 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 11:58:14,279 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:58:14,280 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 11:58:14,280 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:58:14,281 INFO L158 Benchmark]: Toolchain (without parser) took 16395.64ms. Allocated memory was 132.1MB in the beginning and 249.6MB in the end (delta: 117.4MB). Free memory was 86.1MB in the beginning and 215.6MB in the end (delta: -129.5MB). Peak memory consumption was 133.2MB. Max. memory is 16.1GB. [2023-11-26 11:58:14,281 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 132.1MB. Free memory is still 78.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:58:14,282 INFO L158 Benchmark]: CACSL2BoogieTranslator took 500.24ms. Allocated memory is still 132.1MB. Free memory was 85.8MB in the beginning and 66.5MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 11:58:14,282 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.02ms. Allocated memory is still 132.1MB. Free memory was 66.5MB in the beginning and 64.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:58:14,283 INFO L158 Benchmark]: Boogie Preprocessor took 95.13ms. Allocated memory was 132.1MB in the beginning and 172.0MB in the end (delta: 39.8MB). Free memory was 64.2MB in the beginning and 141.5MB in the end (delta: -77.3MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2023-11-26 11:58:14,283 INFO L158 Benchmark]: RCFGBuilder took 695.75ms. Allocated memory is still 172.0MB. Free memory was 141.5MB in the beginning and 123.6MB in the end (delta: 17.9MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2023-11-26 11:58:14,284 INFO L158 Benchmark]: TraceAbstraction took 14878.61ms. Allocated memory was 172.0MB in the beginning and 249.6MB in the end (delta: 77.6MB). Free memory was 122.8MB in the beginning and 79.0MB in the end (delta: 43.8MB). Peak memory consumption was 128.7MB. Max. memory is 16.1GB. [2023-11-26 11:58:14,284 INFO L158 Benchmark]: Witness Printer took 155.81ms. Allocated memory is still 249.6MB. Free memory was 79.0MB in the beginning and 215.6MB in the end (delta: -136.6MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2023-11-26 11:58:14,286 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 132.1MB. Free memory is still 78.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 500.24ms. Allocated memory is still 132.1MB. Free memory was 85.8MB in the beginning and 66.5MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.02ms. Allocated memory is still 132.1MB. Free memory was 66.5MB in the beginning and 64.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 95.13ms. Allocated memory was 132.1MB in the beginning and 172.0MB in the end (delta: 39.8MB). Free memory was 64.2MB in the beginning and 141.5MB in the end (delta: -77.3MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * RCFGBuilder took 695.75ms. Allocated memory is still 172.0MB. Free memory was 141.5MB in the beginning and 123.6MB in the end (delta: 17.9MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * TraceAbstraction took 14878.61ms. Allocated memory was 172.0MB in the beginning and 249.6MB in the end (delta: 77.6MB). Free memory was 122.8MB in the beginning and 79.0MB in the end (delta: 43.8MB). Peak memory consumption was 128.7MB. Max. memory is 16.1GB. * Witness Printer took 155.81ms. Allocated memory is still 249.6MB. Free memory was 79.0MB in the beginning and 215.6MB in the end (delta: -136.6MB). Peak memory consumption was 7.0MB. 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,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [87] - GenericResultAtLocation [Line: 453]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [453] - GenericResultAtLocation [Line: 554]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [554] - GenericResultAtLocation [Line: 655]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [655] - GenericResultAtLocation [Line: 863]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [863] - GenericResultAtLocation [Line: 872]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [872] - GenericResultAtLocation [Line: 911]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [911] * 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: 868]: 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, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.8s, OverallIterations: 13, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 857 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 825 mSDsluCounter, 3185 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2082 mSDsCounter, 183 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1214 IncrementalHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 183 mSolverCounterUnsat, 1103 mSDtfsCounter, 1214 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1094 GetRequests, 982 SyntacticMatches, 1 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=686occurred in iteration=11, InterpolantAutomatonStates: 67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 13 MinimizatonAttempts, 75 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 1118 PreInvPairs, 1209 NumberOfFragments, 1493 HoareAnnotationTreeSize, 1118 FomulaSimplifications, 234 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 24 FomulaSimplificationsInter, 4942 FormulaSimplificationTreeSizeReductionInter, 3.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 1555 NumberOfCodeBlocks, 1555 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1621 ConstructedInterpolants, 0 QuantifiedInterpolants, 2735 SizeOfPredicates, 14 NumberOfNonLiveVariables, 2660 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 22 InterpolantComputations, 13 PerfectInterpolantSequences, 746/790 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: 921]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 922]: Loop Invariant Derived loop invariant: (((((((1 <= pumpRunning) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0)) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0))) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 567]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-26 11:58:14,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01ec81ff-69f4-4686-9917-e511e04b8f13/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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