./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 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_ea841e67-bfbb-4e64-86b1-d7cd4b37e51d/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea841e67-bfbb-4e64-86b1-d7cd4b37e51d/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea841e67-bfbb-4e64-86b1-d7cd4b37e51d/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea841e67-bfbb-4e64-86b1-d7cd4b37e51d/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea841e67-bfbb-4e64-86b1-d7cd4b37e51d/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea841e67-bfbb-4e64-86b1-d7cd4b37e51d/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e70c7d407828df40e6ca35d99b4a3a65ee0ebef631e767452684b3cd94b17437 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 22:21:09,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 22:21:09,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 22:21:09,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 22:21:09,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 22:21:09,809 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 22:21:09,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 22:21:09,811 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 22:21:09,813 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 22:21:09,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 22:21:09,814 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 22:21:09,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 22:21:09,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 22:21:09,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 22:21:09,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 22:21:09,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 22:21:09,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 22:21:09,820 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 22:21:09,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 22:21:09,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 22:21:09,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 22:21:09,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 22:21:09,827 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 22:21:09,828 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 22:21:09,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 22:21:09,840 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 22:21:09,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 22:21:09,841 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 22:21:09,842 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 22:21:09,842 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 22:21:09,842 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 22:21:09,843 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 22:21:09,844 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 22:21:09,844 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 22:21:09,845 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 22:21:09,845 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 22:21:09,845 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 22:21:09,845 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 22:21:09,846 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 22:21:09,846 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 22:21:09,847 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 22:21:09,847 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea841e67-bfbb-4e64-86b1-d7cd4b37e51d/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 22:21:09,862 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 22:21:09,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 22:21:09,868 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 22:21:09,868 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 22:21:09,869 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 22:21:09,869 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 22:21:09,870 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 22:21:09,870 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 22:21:09,870 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 22:21:09,870 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 22:21:09,870 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 22:21:09,870 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 22:21:09,871 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 22:21:09,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 22:21:09,871 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 22:21:09,871 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 22:21:09,871 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 22:21:09,871 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 22:21:09,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 22:21:09,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 22:21:09,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 22:21:09,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 22:21:09,872 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 22:21:09,872 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 22:21:09,872 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 22:21:09,873 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 22:21:09,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 22:21:09,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 22:21:09,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 22:21:09,873 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 22:21:09,873 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 22:21:09,874 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 22:21:09,874 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_ea841e67-bfbb-4e64-86b1-d7cd4b37e51d/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea841e67-bfbb-4e64-86b1-d7cd4b37e51d/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e70c7d407828df40e6ca35d99b4a3a65ee0ebef631e767452684b3cd94b17437 [2022-12-13 22:21:10,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 22:21:10,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 22:21:10,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 22:21:10,074 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 22:21:10,075 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 22:21:10,076 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea841e67-bfbb-4e64-86b1-d7cd4b37e51d/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c [2022-12-13 22:21:12,641 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 22:21:12,823 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 22:21:12,824 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea841e67-bfbb-4e64-86b1-d7cd4b37e51d/sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c [2022-12-13 22:21:12,833 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea841e67-bfbb-4e64-86b1-d7cd4b37e51d/bin/uautomizer-uyxdKDjOR8/data/9ca9136c3/61e392a2cd3344b09aa5532bd67652b9/FLAG6ed5684ed [2022-12-13 22:21:12,847 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea841e67-bfbb-4e64-86b1-d7cd4b37e51d/bin/uautomizer-uyxdKDjOR8/data/9ca9136c3/61e392a2cd3344b09aa5532bd67652b9 [2022-12-13 22:21:12,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 22:21:12,851 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 22:21:12,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 22:21:12,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 22:21:12,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 22:21:12,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:21:12" (1/1) ... [2022-12-13 22:21:12,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20017d61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:12, skipping insertion in model container [2022-12-13 22:21:12,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:21:12" (1/1) ... [2022-12-13 22:21:12,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 22:21:12,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:21:13,099 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea841e67-bfbb-4e64-86b1-d7cd4b37e51d/sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c[17256,17269] [2022-12-13 22:21:13,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:21:13,115 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 22:21:13,157 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea841e67-bfbb-4e64-86b1-d7cd4b37e51d/sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c[17256,17269] [2022-12-13 22:21:13,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:21:13,173 INFO L208 MainTranslator]: Completed translation [2022-12-13 22:21:13,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:13 WrapperNode [2022-12-13 22:21:13,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 22:21:13,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 22:21:13,175 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 22:21:13,175 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 22:21:13,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:13" (1/1) ... [2022-12-13 22:21:13,189 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:13" (1/1) ... [2022-12-13 22:21:13,212 INFO L138 Inliner]: procedures = 57, calls = 102, calls flagged for inlining = 55, calls inlined = 83, statements flattened = 586 [2022-12-13 22:21:13,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 22:21:13,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 22:21:13,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 22:21:13,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 22:21:13,220 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:13" (1/1) ... [2022-12-13 22:21:13,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:13" (1/1) ... [2022-12-13 22:21:13,222 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:13" (1/1) ... [2022-12-13 22:21:13,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:13" (1/1) ... [2022-12-13 22:21:13,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:13" (1/1) ... [2022-12-13 22:21:13,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:13" (1/1) ... [2022-12-13 22:21:13,233 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:13" (1/1) ... [2022-12-13 22:21:13,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:13" (1/1) ... [2022-12-13 22:21:13,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 22:21:13,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 22:21:13,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 22:21:13,237 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 22:21:13,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:13" (1/1) ... [2022-12-13 22:21:13,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 22:21:13,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea841e67-bfbb-4e64-86b1-d7cd4b37e51d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:21:13,262 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea841e67-bfbb-4e64-86b1-d7cd4b37e51d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 22:21:13,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea841e67-bfbb-4e64-86b1-d7cd4b37e51d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 22:21:13,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 22:21:13,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 22:21:13,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 22:21:13,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 22:21:13,362 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 22:21:13,364 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 22:21:13,711 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 22:21:13,719 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 22:21:13,719 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 22:21:13,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:21:13 BoogieIcfgContainer [2022-12-13 22:21:13,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 22:21:13,722 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 22:21:13,722 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 22:21:13,726 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 22:21:13,727 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 22:21:13,727 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 10:21:12" (1/3) ... [2022-12-13 22:21:13,728 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36b4de39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 10:21:13, skipping insertion in model container [2022-12-13 22:21:13,728 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 22:21:13,728 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:13" (2/3) ... [2022-12-13 22:21:13,728 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36b4de39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 10:21:13, skipping insertion in model container [2022-12-13 22:21:13,729 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 22:21:13,729 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:21:13" (3/3) ... [2022-12-13 22:21:13,730 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product52.cil.c [2022-12-13 22:21:13,793 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 22:21:13,794 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 22:21:13,794 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 22:21:13,794 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 22:21:13,794 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 22:21:13,794 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 22:21:13,794 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 22:21:13,795 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 22:21:13,799 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 173 states, 172 states have (on average 1.377906976744186) internal successors, (237), 172 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:21:13,824 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 113 [2022-12-13 22:21:13,824 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 22:21:13,824 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 22:21:13,831 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:21:13,832 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:21:13,832 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 22:21:13,833 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 173 states, 172 states have (on average 1.377906976744186) internal successors, (237), 172 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:21:13,839 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 113 [2022-12-13 22:21:13,839 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 22:21:13,839 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 22:21:13,840 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:21:13,840 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:21:13,846 INFO L748 eck$LassoCheckResult]: Stem: 35#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 48#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 31#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 143#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 120#valid_product_returnLabel#1true main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 46#L988true assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 96#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 121#L800-2true [2022-12-13 22:21:13,846 INFO L750 eck$LassoCheckResult]: Loop: 121#L800-2true assume !false; 152#L801true assume test_~splverifierCounter~0#1 < 4; 65#L802true test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 7#L810true assume !(0 != test_~tmp~8#1); 29#L810-2true test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 33#L820true assume !(0 != test_~tmp___0~3#1); 130#L820-2true test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 139#L830true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 36#L838true assume !(0 != test_~tmp___1~1#1); 137#L838-2true assume { :begin_inline_timeShift } true; 114#L576true assume !(0 != ~pumpRunning~0); 54#L576-2true assume !(0 != ~systemActive~0); 50#L583-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 162#isMethaneLevelCritical_returnLabel#1true __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 9#L63true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 168#L69-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 85#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 121#L800-2true [2022-12-13 22:21:13,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:13,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-12-13 22:21:13,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:13,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995263276] [2022-12-13 22:21:13,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:13,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:13,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:13,940 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:21:13,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:13,974 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:21:13,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:13,978 INFO L85 PathProgramCache]: Analyzing trace with hash -902471231, now seen corresponding path program 1 times [2022-12-13 22:21:13,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:13,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258921647] [2022-12-13 22:21:13,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:13,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:13,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:13,986 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:21:13,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:13,993 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:21:13,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:13,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1834152835, now seen corresponding path program 1 times [2022-12-13 22:21:13,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:13,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316440239] [2022-12-13 22:21:13,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:13,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:21:14,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:21:14,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:21:14,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316440239] [2022-12-13 22:21:14,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316440239] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:21:14,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:21:14,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 22:21:14,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251428983] [2022-12-13 22:21:14,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:21:14,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:21:14,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 22:21:14,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 22:21:14,293 INFO L87 Difference]: Start difference. First operand has 173 states, 172 states have (on average 1.377906976744186) internal successors, (237), 172 states have internal predecessors, (237), 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) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:21:14,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:21:14,424 INFO L93 Difference]: Finished difference Result 564 states and 746 transitions. [2022-12-13 22:21:14,425 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 564 states and 746 transitions. [2022-12-13 22:21:14,435 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 368 [2022-12-13 22:21:14,442 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 564 states to 524 states and 706 transitions. [2022-12-13 22:21:14,443 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 524 [2022-12-13 22:21:14,445 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 524 [2022-12-13 22:21:14,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 524 states and 706 transitions. [2022-12-13 22:21:14,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:21:14,448 INFO L218 hiAutomatonCegarLoop]: Abstraction has 524 states and 706 transitions. [2022-12-13 22:21:14,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states and 706 transitions. [2022-12-13 22:21:14,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 218. [2022-12-13 22:21:14,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 218 states have (on average 1.3440366972477065) internal successors, (293), 217 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:21:14,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 293 transitions. [2022-12-13 22:21:14,478 INFO L240 hiAutomatonCegarLoop]: Abstraction has 218 states and 293 transitions. [2022-12-13 22:21:14,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 22:21:14,483 INFO L428 stractBuchiCegarLoop]: Abstraction has 218 states and 293 transitions. [2022-12-13 22:21:14,483 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 22:21:14,483 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 218 states and 293 transitions. [2022-12-13 22:21:14,485 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 153 [2022-12-13 22:21:14,485 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 22:21:14,485 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 22:21:14,485 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:21:14,486 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:21:14,486 INFO L748 eck$LassoCheckResult]: Stem: 805#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 806#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 799#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 800#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 897#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 823#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 824#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 870#L800-2 [2022-12-13 22:21:14,486 INFO L750 eck$LassoCheckResult]: Loop: 870#L800-2 assume !false; 898#L801 assume test_~splverifierCounter~0#1 < 4; 851#L802 test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 760#L810 assume !(0 != test_~tmp~8#1); 762#L810-2 test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 796#L820 assume !(0 != test_~tmp___0~3#1); 802#L820-2 test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 904#L830 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 807#L838 assume !(0 != test_~tmp___1~1#1); 808#L838-2 assume { :begin_inline_timeShift } true; 891#L576 assume !(0 != ~pumpRunning~0); 835#L576-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 836#L634 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 903#L608-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 755#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 756#L608-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 810#L634-1 assume { :end_inline_processEnvironment } true; 828#L583-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 829#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 766#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 767#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 869#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 870#L800-2 [2022-12-13 22:21:14,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:14,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-12-13 22:21:14,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:14,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275076594] [2022-12-13 22:21:14,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:14,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:14,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:14,497 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:21:14,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:14,505 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:21:14,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:14,506 INFO L85 PathProgramCache]: Analyzing trace with hash -2056880329, now seen corresponding path program 1 times [2022-12-13 22:21:14,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:14,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814406501] [2022-12-13 22:21:14,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:14,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:14,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:21:14,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:21:14,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:21:14,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814406501] [2022-12-13 22:21:14,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814406501] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:21:14,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:21:14,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:21:14,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962851342] [2022-12-13 22:21:14,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:21:14,528 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 22:21:14,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:21:14,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:21:14,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:21:14,529 INFO L87 Difference]: Start difference. First operand 218 states and 293 transitions. cyclomatic complexity: 78 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:21:14,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:21:14,579 INFO L93 Difference]: Finished difference Result 275 states and 354 transitions. [2022-12-13 22:21:14,579 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 275 states and 354 transitions. [2022-12-13 22:21:14,581 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 197 [2022-12-13 22:21:14,582 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 275 states to 275 states and 354 transitions. [2022-12-13 22:21:14,582 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 275 [2022-12-13 22:21:14,582 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 275 [2022-12-13 22:21:14,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 275 states and 354 transitions. [2022-12-13 22:21:14,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:21:14,583 INFO L218 hiAutomatonCegarLoop]: Abstraction has 275 states and 354 transitions. [2022-12-13 22:21:14,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states and 354 transitions. [2022-12-13 22:21:14,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 275. [2022-12-13 22:21:14,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 275 states have (on average 1.2872727272727273) internal successors, (354), 274 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:21:14,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 354 transitions. [2022-12-13 22:21:14,589 INFO L240 hiAutomatonCegarLoop]: Abstraction has 275 states and 354 transitions. [2022-12-13 22:21:14,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:21:14,590 INFO L428 stractBuchiCegarLoop]: Abstraction has 275 states and 354 transitions. [2022-12-13 22:21:14,590 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 22:21:14,591 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 275 states and 354 transitions. [2022-12-13 22:21:14,592 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 197 [2022-12-13 22:21:14,593 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 22:21:14,593 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 22:21:14,593 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:21:14,594 INFO L149 hiAutomatonCegarLoop]: Counterexample loop 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] [2022-12-13 22:21:14,594 INFO L748 eck$LassoCheckResult]: Stem: 1303#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 1304#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 1297#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1298#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 1399#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 1323#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 1324#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1369#L800-2 [2022-12-13 22:21:14,594 INFO L750 eck$LassoCheckResult]: Loop: 1369#L800-2 assume !false; 1400#L801 assume test_~splverifierCounter~0#1 < 4; 1349#L802 test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 1257#L810 assume !(0 != test_~tmp~8#1); 1259#L810-2 test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 1294#L820 assume !(0 != test_~tmp___0~3#1); 1300#L820-2 test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 1523#L830 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1354#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 1308#L838-2 assume { :begin_inline_timeShift } true; 1397#L576 assume !(0 != ~pumpRunning~0); 1333#L576-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1334#L634 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 1404#L608-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 1362#L177-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1322#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 1266#L736-3 assume !(0 != isHighWaterLevel_~tmp~6#1);isHighWaterLevel_~tmp___0~1#1 := 1; 1267#L736-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 1420#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret35#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret35#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1; 1421#L612-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1316#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 1305#L608-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1306#L634-1 assume { :end_inline_processEnvironment } true; 1363#L583-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 1498#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 1493#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 1492#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1368#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1369#L800-2 [2022-12-13 22:21:14,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:14,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-12-13 22:21:14,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:14,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329877040] [2022-12-13 22:21:14,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:14,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:14,603 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:21:14,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:14,611 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:21:14,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:14,611 INFO L85 PathProgramCache]: Analyzing trace with hash -489061093, now seen corresponding path program 1 times [2022-12-13 22:21:14,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:14,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559957959] [2022-12-13 22:21:14,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:14,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:21:14,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:21:14,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:21:14,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559957959] [2022-12-13 22:21:14,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559957959] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:21:14,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:21:14,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 22:21:14,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922363213] [2022-12-13 22:21:14,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:21:14,667 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 22:21:14,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:21:14,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:21:14,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:21:14,668 INFO L87 Difference]: Start difference. First operand 275 states and 354 transitions. cyclomatic complexity: 82 Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:21:14,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:21:14,734 INFO L93 Difference]: Finished difference Result 537 states and 683 transitions. [2022-12-13 22:21:14,734 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 537 states and 683 transitions. [2022-12-13 22:21:14,739 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 390 [2022-12-13 22:21:14,741 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 537 states to 537 states and 683 transitions. [2022-12-13 22:21:14,741 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 537 [2022-12-13 22:21:14,741 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 537 [2022-12-13 22:21:14,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 537 states and 683 transitions. [2022-12-13 22:21:14,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:21:14,742 INFO L218 hiAutomatonCegarLoop]: Abstraction has 537 states and 683 transitions. [2022-12-13 22:21:14,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states and 683 transitions. [2022-12-13 22:21:14,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 287. [2022-12-13 22:21:14,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 287 states have (on average 1.2752613240418118) internal successors, (366), 286 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:21:14,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 366 transitions. [2022-12-13 22:21:14,749 INFO L240 hiAutomatonCegarLoop]: Abstraction has 287 states and 366 transitions. [2022-12-13 22:21:14,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 22:21:14,750 INFO L428 stractBuchiCegarLoop]: Abstraction has 287 states and 366 transitions. [2022-12-13 22:21:14,750 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-12-13 22:21:14,750 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 287 states and 366 transitions. [2022-12-13 22:21:14,751 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 205 [2022-12-13 22:21:14,752 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 22:21:14,752 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 22:21:14,752 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:21:14,752 INFO L149 hiAutomatonCegarLoop]: Counterexample loop 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] [2022-12-13 22:21:14,752 INFO L748 eck$LassoCheckResult]: Stem: 2126#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 2127#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 2119#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2120#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 2231#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 2146#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 2147#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2199#L800-2 [2022-12-13 22:21:14,753 INFO L750 eck$LassoCheckResult]: Loop: 2199#L800-2 assume !false; 2232#L801 assume test_~splverifierCounter~0#1 < 4; 2255#L802 test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 2340#L810 assume !(0 != test_~tmp~8#1); 2338#L810-2 test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 2121#L820 assume !(0 != test_~tmp___0~3#1); 2123#L820-2 test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 2238#L830 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2179#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 2180#L838-2 assume { :begin_inline_timeShift } true; 2245#L576 assume !(0 != ~pumpRunning~0); 2157#L576-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 2158#L634 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 2236#L608-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 2189#L177-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 2148#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 2088#L736-3 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2089#L736-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 2252#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret35#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret35#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1; 2253#L612-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2140#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 2131#L608-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2132#L634-1 assume { :end_inline_processEnvironment } true; 2151#L583-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 2152#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 2263#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 2265#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2198#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2199#L800-2 [2022-12-13 22:21:14,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:14,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-12-13 22:21:14,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:14,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019630083] [2022-12-13 22:21:14,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:14,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:14,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:14,759 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:21:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:14,764 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:21:14,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:14,764 INFO L85 PathProgramCache]: Analyzing trace with hash -747226531, now seen corresponding path program 1 times [2022-12-13 22:21:14,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:14,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610910638] [2022-12-13 22:21:14,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:14,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:14,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:14,769 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:21:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:14,774 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:21:14,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:14,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1998208479, now seen corresponding path program 1 times [2022-12-13 22:21:14,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:14,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675140511] [2022-12-13 22:21:14,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:14,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:21:14,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:21:14,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:21:14,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675140511] [2022-12-13 22:21:14,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675140511] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:21:14,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:21:14,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 22:21:14,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803121851] [2022-12-13 22:21:14,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:21:14,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:21:14,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 22:21:14,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 22:21:14,990 INFO L87 Difference]: Start difference. First operand 287 states and 366 transitions. cyclomatic complexity: 82 Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:21:15,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:21:15,052 INFO L93 Difference]: Finished difference Result 1030 states and 1304 transitions. [2022-12-13 22:21:15,052 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1030 states and 1304 transitions. [2022-12-13 22:21:15,056 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 786 [2022-12-13 22:21:15,059 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1030 states to 1030 states and 1304 transitions. [2022-12-13 22:21:15,059 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1030 [2022-12-13 22:21:15,060 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1030 [2022-12-13 22:21:15,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1030 states and 1304 transitions. [2022-12-13 22:21:15,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:21:15,061 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1030 states and 1304 transitions. [2022-12-13 22:21:15,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states and 1304 transitions. [2022-12-13 22:21:15,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 567. [2022-12-13 22:21:15,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 567 states have (on average 1.2574955908289243) internal successors, (713), 566 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:21:15,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 713 transitions. [2022-12-13 22:21:15,072 INFO L240 hiAutomatonCegarLoop]: Abstraction has 567 states and 713 transitions. [2022-12-13 22:21:15,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 22:21:15,073 INFO L428 stractBuchiCegarLoop]: Abstraction has 567 states and 713 transitions. [2022-12-13 22:21:15,073 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-12-13 22:21:15,073 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 567 states and 713 transitions. [2022-12-13 22:21:15,074 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 410 [2022-12-13 22:21:15,075 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 22:21:15,075 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 22:21:15,075 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:21:15,075 INFO L149 hiAutomatonCegarLoop]: Counterexample loop 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] [2022-12-13 22:21:15,076 INFO L748 eck$LassoCheckResult]: Stem: 3461#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 3462#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 3455#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3456#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 3567#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 3480#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 3481#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3543#L800-2 [2022-12-13 22:21:15,076 INFO L750 eck$LassoCheckResult]: Loop: 3543#L800-2 assume !false; 3850#L801 assume test_~splverifierCounter~0#1 < 4; 3851#L802 test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 3958#L810 assume !(0 != test_~tmp~8#1); 3956#L810-2 test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 3955#L820 assume !(0 != test_~tmp___0~3#1); 3953#L820-2 test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 3952#L830 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 3916#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 3949#L838-2 assume { :begin_inline_timeShift } true; 3945#L576 assume !(0 != ~pumpRunning~0); 3884#L576-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 3858#L634 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 3876#L608-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 3522#L177-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 3523#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 3881#L736-3 assume !(0 != isHighWaterLevel_~tmp~6#1);isHighWaterLevel_~tmp___0~1#1 := 1; 3424#L736-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 3590#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret35#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret35#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1; 3591#L612-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3605#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 3892#L608-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3886#L634-1 assume { :end_inline_processEnvironment } true; 3869#L583-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 3868#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 3867#L63 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 3866#getWaterLevel_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 3863#L69 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 3862#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 3861#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 3543#L800-2 [2022-12-13 22:21:15,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:15,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2022-12-13 22:21:15,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:15,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870895699] [2022-12-13 22:21:15,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:15,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:15,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:15,082 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:21:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:15,086 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:21:15,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:15,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1438877740, now seen corresponding path program 1 times [2022-12-13 22:21:15,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:15,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750176185] [2022-12-13 22:21:15,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:15,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:15,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:21:15,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:21:15,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:21:15,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750176185] [2022-12-13 22:21:15,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750176185] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:21:15,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:21:15,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 22:21:15,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122808321] [2022-12-13 22:21:15,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:21:15,121 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 22:21:15,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:21:15,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 22:21:15,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 22:21:15,122 INFO L87 Difference]: Start difference. First operand 567 states and 713 transitions. cyclomatic complexity: 151 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:21:15,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:21:15,213 INFO L93 Difference]: Finished difference Result 1447 states and 1807 transitions. [2022-12-13 22:21:15,213 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1447 states and 1807 transitions. [2022-12-13 22:21:15,219 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 1070 [2022-12-13 22:21:15,223 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1447 states to 1447 states and 1807 transitions. [2022-12-13 22:21:15,223 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1447 [2022-12-13 22:21:15,224 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1447 [2022-12-13 22:21:15,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1447 states and 1807 transitions. [2022-12-13 22:21:15,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:21:15,225 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1447 states and 1807 transitions. [2022-12-13 22:21:15,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1447 states and 1807 transitions. [2022-12-13 22:21:15,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1447 to 603. [2022-12-13 22:21:15,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 603 states have (on average 1.24212271973466) internal successors, (749), 602 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:21:15,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 749 transitions. [2022-12-13 22:21:15,237 INFO L240 hiAutomatonCegarLoop]: Abstraction has 603 states and 749 transitions. [2022-12-13 22:21:15,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 22:21:15,238 INFO L428 stractBuchiCegarLoop]: Abstraction has 603 states and 749 transitions. [2022-12-13 22:21:15,238 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-12-13 22:21:15,238 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 603 states and 749 transitions. [2022-12-13 22:21:15,240 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 434 [2022-12-13 22:21:15,240 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 22:21:15,240 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 22:21:15,240 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:21:15,240 INFO L149 hiAutomatonCegarLoop]: Counterexample loop 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] [2022-12-13 22:21:15,241 INFO L748 eck$LassoCheckResult]: Stem: 5489#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 5490#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 5483#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 5484#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 5628#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 5511#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 5512#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 5588#L800-2 [2022-12-13 22:21:15,241 INFO L750 eck$LassoCheckResult]: Loop: 5588#L800-2 assume !false; 5933#L801 assume test_~splverifierCounter~0#1 < 4; 5943#L802 test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 5978#L810 assume !(0 != test_~tmp~8#1); 5976#L810-2 test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 5975#L820 assume !(0 != test_~tmp___0~3#1); 5576#L820-2 test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 5658#L830 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 5659#L838 assume !(0 != test_~tmp___1~1#1); 5549#L838-2 assume { :begin_inline_timeShift } true; 5655#L576 assume !(0 != ~pumpRunning~0); 5528#L576-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 5529#L634 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 5633#L608-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 5562#L177-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 5563#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 5451#L736-3 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 5452#L736-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 5668#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret35#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret35#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1; 5669#L612-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 5812#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 5491#L608-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 5492#L634-1 assume { :end_inline_processEnvironment } true; 5565#L583-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 5688#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 5447#L63 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 5448#getWaterLevel_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 5464#L69 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 5465#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 5938#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 5588#L800-2 [2022-12-13 22:21:15,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:15,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 6 times [2022-12-13 22:21:15,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:15,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186591066] [2022-12-13 22:21:15,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:15,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:15,251 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:21:15,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:15,255 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:21:15,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:15,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1829879138, now seen corresponding path program 1 times [2022-12-13 22:21:15,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:15,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572882852] [2022-12-13 22:21:15,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:15,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:15,260 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:21:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:15,264 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:21:15,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:15,264 INFO L85 PathProgramCache]: Analyzing trace with hash -2067897306, now seen corresponding path program 1 times [2022-12-13 22:21:15,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:15,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212229898] [2022-12-13 22:21:15,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:15,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:15,271 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:21:15,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:15,279 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:21:16,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:16,095 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:21:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:16,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 10:21:16 BoogieIcfgContainer [2022-12-13 22:21:16,137 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 22:21:16,138 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 22:21:16,138 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 22:21:16,138 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 22:21:16,138 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:21:13" (3/4) ... [2022-12-13 22:21:16,141 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 22:21:16,184 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea841e67-bfbb-4e64-86b1-d7cd4b37e51d/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 22:21:16,184 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 22:21:16,185 INFO L158 Benchmark]: Toolchain (without parser) took 3334.47ms. Allocated memory was 136.3MB in the beginning and 180.4MB in the end (delta: 44.0MB). Free memory was 92.1MB in the beginning and 138.4MB in the end (delta: -46.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:21:16,185 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 136.3MB. Free memory is still 101.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:21:16,186 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.24ms. Allocated memory is still 136.3MB. Free memory was 92.1MB in the beginning and 73.3MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 22:21:16,186 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.65ms. Allocated memory is still 136.3MB. Free memory was 73.3MB in the beginning and 70.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:21:16,186 INFO L158 Benchmark]: Boogie Preprocessor took 24.09ms. Allocated memory is still 136.3MB. Free memory was 70.3MB in the beginning and 67.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:21:16,186 INFO L158 Benchmark]: RCFGBuilder took 484.37ms. Allocated memory is still 136.3MB. Free memory was 67.9MB in the beginning and 104.0MB in the end (delta: -36.1MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. [2022-12-13 22:21:16,187 INFO L158 Benchmark]: BuchiAutomizer took 2414.96ms. Allocated memory was 136.3MB in the beginning and 180.4MB in the end (delta: 44.0MB). Free memory was 103.9MB in the beginning and 141.5MB in the end (delta: -37.6MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2022-12-13 22:21:16,187 INFO L158 Benchmark]: Witness Printer took 46.79ms. Allocated memory is still 180.4MB. Free memory was 141.5MB in the beginning and 138.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:21:16,189 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 136.3MB. Free memory is still 101.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.24ms. Allocated memory is still 136.3MB. Free memory was 92.1MB in the beginning and 73.3MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.65ms. Allocated memory is still 136.3MB. Free memory was 73.3MB in the beginning and 70.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.09ms. Allocated memory is still 136.3MB. Free memory was 70.3MB in the beginning and 67.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 484.37ms. Allocated memory is still 136.3MB. Free memory was 67.9MB in the beginning and 104.0MB in the end (delta: -36.1MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 2414.96ms. Allocated memory was 136.3MB in the beginning and 180.4MB in the end (delta: 44.0MB). Free memory was 103.9MB in the beginning and 141.5MB in the end (delta: -37.6MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Witness Printer took 46.79ms. Allocated memory is still 180.4MB. Free memory was 141.5MB in the beginning and 138.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (5 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.5 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 603 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 1863 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3068 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3068 mSDsluCounter, 5070 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3667 mSDsCounter, 82 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 289 IncrementalHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 82 mSolverCounterUnsat, 1403 mSDtfsCounter, 289 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 800]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L94] int waterLevel = 1; [L95] int methaneLevelCritical = 0; [L366] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L569] int pumpRunning = 0; [L570] int systemActive = 1; [L906] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L979] int retValue_acc ; [L980] int tmp ; [L984] FCALL select_helpers() [L985] FCALL select_features() [L986] CALL, EXPR valid_product() [L897] int retValue_acc ; [L900] retValue_acc = 1 [L901] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L986] RET, EXPR valid_product() [L986] tmp = valid_product() [L988] COND TRUE \read(tmp) [L990] FCALL setup() [L991] CALL runTest() [L973] CALL test() [L791] int splverifierCounter ; [L792] int tmp ; [L793] int tmp___0 ; [L794] int tmp___1 ; [L795] int tmp___2 ; [L798] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L800] COND TRUE 1 [L802] COND TRUE splverifierCounter < 4 [L808] tmp = __VERIFIER_nondet_int() [L810] COND FALSE !(\read(tmp)) [L818] tmp___0 = __VERIFIER_nondet_int() [L820] COND FALSE !(\read(tmp___0)) [L828] tmp___2 = __VERIFIER_nondet_int() [L830] COND FALSE !(\read(tmp___2)) [L836] tmp___1 = __VERIFIER_nondet_int() [L838] COND FALSE !(\read(tmp___1)) [L847] CALL timeShift() [L576] COND FALSE !(\read(pumpRunning)) [L583] COND TRUE \read(systemActive) [L585] CALL processEnvironment() [L631] int tmp ; [L634] COND FALSE !(\read(pumpRunning)) [L649] CALL processEnvironment__wrappee__highWaterSensor() [L605] int tmp ; [L608] COND TRUE ! pumpRunning [L610] CALL, EXPR isHighWaterLevel() [L728] int retValue_acc ; [L729] int tmp ; [L730] int tmp___0 ; [L734] CALL, EXPR isHighWaterSensorDry() [L174] int retValue_acc ; [L177] COND TRUE waterLevel < 2 [L178] retValue_acc = 1 [L179] return (retValue_acc); [L734] RET, EXPR isHighWaterSensorDry() [L734] tmp = isHighWaterSensorDry() [L736] COND TRUE \read(tmp) [L737] tmp___0 = 0 [L741] retValue_acc = tmp___0 [L742] return (retValue_acc); [L610] RET, EXPR isHighWaterLevel() [L610] tmp = isHighWaterLevel() [L612] COND FALSE !(\read(tmp)) [L618] FCALL processEnvironment__wrappee__base() [L649] RET processEnvironment__wrappee__highWaterSensor() [L585] RET processEnvironment() [L591] CALL __utac_acc__Specification3_spec__1() [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; [L61] CALL, EXPR isMethaneLevelCritical() [L133] int retValue_acc ; [L136] retValue_acc = methaneLevelCritical [L137] return (retValue_acc); [L61] RET, EXPR isMethaneLevelCritical() [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L67] CALL, EXPR getWaterLevel() [L165] int retValue_acc ; [L168] retValue_acc = waterLevel [L169] return (retValue_acc); [L67] RET, EXPR getWaterLevel() [L67] tmp___0 = getWaterLevel() [L69] COND FALSE !(tmp___0 == 2) [L591] RET __utac_acc__Specification3_spec__1() [L847] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 800]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L94] int waterLevel = 1; [L95] int methaneLevelCritical = 0; [L366] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L569] int pumpRunning = 0; [L570] int systemActive = 1; [L906] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L979] int retValue_acc ; [L980] int tmp ; [L984] FCALL select_helpers() [L985] FCALL select_features() [L986] CALL, EXPR valid_product() [L897] int retValue_acc ; [L900] retValue_acc = 1 [L901] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L986] RET, EXPR valid_product() [L986] tmp = valid_product() [L988] COND TRUE \read(tmp) [L990] FCALL setup() [L991] CALL runTest() [L973] CALL test() [L791] int splverifierCounter ; [L792] int tmp ; [L793] int tmp___0 ; [L794] int tmp___1 ; [L795] int tmp___2 ; [L798] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L800] COND TRUE 1 [L802] COND TRUE splverifierCounter < 4 [L808] tmp = __VERIFIER_nondet_int() [L810] COND FALSE !(\read(tmp)) [L818] tmp___0 = __VERIFIER_nondet_int() [L820] COND FALSE !(\read(tmp___0)) [L828] tmp___2 = __VERIFIER_nondet_int() [L830] COND FALSE !(\read(tmp___2)) [L836] tmp___1 = __VERIFIER_nondet_int() [L838] COND FALSE !(\read(tmp___1)) [L847] CALL timeShift() [L576] COND FALSE !(\read(pumpRunning)) [L583] COND TRUE \read(systemActive) [L585] CALL processEnvironment() [L631] int tmp ; [L634] COND FALSE !(\read(pumpRunning)) [L649] CALL processEnvironment__wrappee__highWaterSensor() [L605] int tmp ; [L608] COND TRUE ! pumpRunning [L610] CALL, EXPR isHighWaterLevel() [L728] int retValue_acc ; [L729] int tmp ; [L730] int tmp___0 ; [L734] CALL, EXPR isHighWaterSensorDry() [L174] int retValue_acc ; [L177] COND TRUE waterLevel < 2 [L178] retValue_acc = 1 [L179] return (retValue_acc); [L734] RET, EXPR isHighWaterSensorDry() [L734] tmp = isHighWaterSensorDry() [L736] COND TRUE \read(tmp) [L737] tmp___0 = 0 [L741] retValue_acc = tmp___0 [L742] return (retValue_acc); [L610] RET, EXPR isHighWaterLevel() [L610] tmp = isHighWaterLevel() [L612] COND FALSE !(\read(tmp)) [L618] FCALL processEnvironment__wrappee__base() [L649] RET processEnvironment__wrappee__highWaterSensor() [L585] RET processEnvironment() [L591] CALL __utac_acc__Specification3_spec__1() [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; [L61] CALL, EXPR isMethaneLevelCritical() [L133] int retValue_acc ; [L136] retValue_acc = methaneLevelCritical [L137] return (retValue_acc); [L61] RET, EXPR isMethaneLevelCritical() [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L67] CALL, EXPR getWaterLevel() [L165] int retValue_acc ; [L168] retValue_acc = waterLevel [L169] return (retValue_acc); [L67] RET, EXPR getWaterLevel() [L67] tmp___0 = getWaterLevel() [L69] COND FALSE !(tmp___0 == 2) [L591] RET __utac_acc__Specification3_spec__1() [L847] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-12-13 22:21:16,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea841e67-bfbb-4e64-86b1-d7cd4b37e51d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)