./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dcab8ddabad39d2c77c9d9341cfb89acc265e09aeb5bde0419f381c4b7bb75b6 --- 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-e04fb08 [2022-11-16 12:04:11,598 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:04:11,601 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:04:11,626 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:04:11,627 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:04:11,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:04:11,630 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:04:11,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:04:11,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:04:11,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:04:11,636 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:04:11,637 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:04:11,638 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:04:11,639 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:04:11,640 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:04:11,642 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:04:11,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:04:11,644 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:04:11,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:04:11,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:04:11,651 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:04:11,659 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:04:11,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:04:11,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:04:11,667 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:04:11,674 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:04:11,675 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:04:11,676 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:04:11,677 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:04:11,678 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:04:11,680 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:04:11,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:04:11,682 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:04:11,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:04:11,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:04:11,688 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:04:11,690 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:04:11,691 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:04:11,691 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:04:11,692 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:04:11,693 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:04:11,694 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 12:04:11,738 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:04:11,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:04:11,738 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:04:11,739 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:04:11,740 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:04:11,741 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:04:11,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:04:11,742 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:04:11,742 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:04:11,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:04:11,744 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:04:11,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:04:11,745 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:04:11,745 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:04:11,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:04:11,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:04:11,746 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:04:11,746 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:04:11,746 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:04:11,747 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:04:11,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:04:11,747 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:04:11,747 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:04:11,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:04:11,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:04:11,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:04:11,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:04:11,749 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:04:11,749 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:04:11,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:04:11,750 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:04:11,750 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:04:11,750 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:04:11,751 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dcab8ddabad39d2c77c9d9341cfb89acc265e09aeb5bde0419f381c4b7bb75b6 [2022-11-16 12:04:12,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:04:12,135 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:04:12,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:04:12,141 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:04:12,142 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:04:12,144 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c [2022-11-16 12:04:12,229 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/data/e48d91b0b/9975a1207e04402e91b608d4e920cb5a/FLAGc09340822 [2022-11-16 12:04:12,928 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:04:12,952 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c [2022-11-16 12:04:12,970 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/data/e48d91b0b/9975a1207e04402e91b608d4e920cb5a/FLAGc09340822 [2022-11-16 12:04:13,159 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/data/e48d91b0b/9975a1207e04402e91b608d4e920cb5a [2022-11-16 12:04:13,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:04:13,172 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:04:13,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:04:13,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:04:13,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:04:13,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:04:13" (1/1) ... [2022-11-16 12:04:13,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@418fb12c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:13, skipping insertion in model container [2022-11-16 12:04:13,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:04:13" (1/1) ... [2022-11-16 12:04:13,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:04:13,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:04:13,542 WARN L229 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_f775bdfe-7c2c-43d6-9721-e3674db28067/sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c[1605,1618] [2022-11-16 12:04:13,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:04:13,826 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:04:13,851 WARN L229 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_f775bdfe-7c2c-43d6-9721-e3674db28067/sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c[1605,1618] [2022-11-16 12:04:13,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:04:13,991 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:04:13,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:13 WrapperNode [2022-11-16 12:04:13,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:04:13,993 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:04:13,993 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:04:13,993 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:04:14,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:13" (1/1) ... [2022-11-16 12:04:14,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:13" (1/1) ... [2022-11-16 12:04:14,077 INFO L138 Inliner]: procedures = 55, calls = 154, calls flagged for inlining = 24, calls inlined = 20, statements flattened = 257 [2022-11-16 12:04:14,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:04:14,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:04:14,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:04:14,078 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:04:14,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:13" (1/1) ... [2022-11-16 12:04:14,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:13" (1/1) ... [2022-11-16 12:04:14,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:13" (1/1) ... [2022-11-16 12:04:14,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:13" (1/1) ... [2022-11-16 12:04:14,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:13" (1/1) ... [2022-11-16 12:04:14,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:13" (1/1) ... [2022-11-16 12:04:14,137 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:13" (1/1) ... [2022-11-16 12:04:14,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:13" (1/1) ... [2022-11-16 12:04:14,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:04:14,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:04:14,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:04:14,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:04:14,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:13" (1/1) ... [2022-11-16 12:04:14,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:04:14,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:04:14,209 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:04:14,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:04:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:04:14,271 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-16 12:04:14,271 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-16 12:04:14,271 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-16 12:04:14,271 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-16 12:04:14,272 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-16 12:04:14,272 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-16 12:04:14,272 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-16 12:04:14,273 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-16 12:04:14,273 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-16 12:04:14,274 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-16 12:04:14,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:04:14,275 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-16 12:04:14,275 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-16 12:04:14,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:04:14,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:04:14,404 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:04:14,406 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:04:14,851 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:04:14,861 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:04:14,861 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 12:04:14,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:04:14 BoogieIcfgContainer [2022-11-16 12:04:14,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:04:14,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:04:14,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:04:14,872 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:04:14,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:04:13" (1/3) ... [2022-11-16 12:04:14,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53edb0b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:04:14, skipping insertion in model container [2022-11-16 12:04:14,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:13" (2/3) ... [2022-11-16 12:04:14,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53edb0b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:04:14, skipping insertion in model container [2022-11-16 12:04:14,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:04:14" (3/3) ... [2022-11-16 12:04:14,876 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product49.cil.c [2022-11-16 12:04:14,901 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:04:14,901 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:04:14,978 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:04:14,987 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6f025096, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:04:14,987 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:04:14,993 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 64 states have (on average 1.40625) internal successors, (90), 72 states have internal predecessors, (90), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-16 12:04:15,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-16 12:04:15,005 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:04:15,006 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:15,006 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:04:15,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:15,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1722090408, now seen corresponding path program 1 times [2022-11-16 12:04:15,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:15,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521172384] [2022-11-16 12:04:15,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:15,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:15,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:15,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:15,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521172384] [2022-11-16 12:04:15,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521172384] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:15,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:15,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:04:15,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278463218] [2022-11-16 12:04:15,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:15,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:04:15,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:15,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:04:15,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:04:15,452 INFO L87 Difference]: Start difference. First operand has 82 states, 64 states have (on average 1.40625) internal successors, (90), 72 states have internal predecessors, (90), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:15,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:04:15,533 INFO L93 Difference]: Finished difference Result 156 states and 215 transitions. [2022-11-16 12:04:15,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:04:15,537 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-16 12:04:15,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:04:15,560 INFO L225 Difference]: With dead ends: 156 [2022-11-16 12:04:15,562 INFO L226 Difference]: Without dead ends: 73 [2022-11-16 12:04:15,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:04:15,574 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:04:15,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:04:15,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-16 12:04:15,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-11-16 12:04:15,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 57 states have (on average 1.3333333333333333) internal successors, (76), 64 states have internal predecessors, (76), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-16 12:04:15,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 95 transitions. [2022-11-16 12:04:15,660 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 95 transitions. Word has length 19 [2022-11-16 12:04:15,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:04:15,661 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 95 transitions. [2022-11-16 12:04:15,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:15,663 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 95 transitions. [2022-11-16 12:04:15,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-16 12:04:15,669 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:04:15,670 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:15,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:04:15,671 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:04:15,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:15,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1895744144, now seen corresponding path program 1 times [2022-11-16 12:04:15,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:15,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264709438] [2022-11-16 12:04:15,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:15,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:15,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:15,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:15,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264709438] [2022-11-16 12:04:15,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264709438] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:15,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:15,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:04:15,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753766813] [2022-11-16 12:04:15,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:15,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:04:15,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:15,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:04:15,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:04:15,897 INFO L87 Difference]: Start difference. First operand 73 states and 95 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:15,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:04:15,920 INFO L93 Difference]: Finished difference Result 112 states and 146 transitions. [2022-11-16 12:04:15,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:04:15,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-16 12:04:15,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:04:15,925 INFO L225 Difference]: With dead ends: 112 [2022-11-16 12:04:15,926 INFO L226 Difference]: Without dead ends: 64 [2022-11-16 12:04:15,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:04:15,931 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 12 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:04:15,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 148 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:04:15,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-16 12:04:15,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-11-16 12:04:15,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 51 states have (on average 1.3529411764705883) internal successors, (69), 58 states have internal predecessors, (69), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-16 12:04:15,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 83 transitions. [2022-11-16 12:04:15,957 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 83 transitions. Word has length 20 [2022-11-16 12:04:15,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:04:15,959 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 83 transitions. [2022-11-16 12:04:15,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:15,960 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 83 transitions. [2022-11-16 12:04:15,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:04:15,961 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:04:15,961 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:15,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:04:15,962 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:04:15,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:15,963 INFO L85 PathProgramCache]: Analyzing trace with hash 540813392, now seen corresponding path program 1 times [2022-11-16 12:04:15,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:15,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347369856] [2022-11-16 12:04:15,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:15,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:16,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:16,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:16,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:16,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347369856] [2022-11-16 12:04:16,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347369856] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:16,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:16,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:04:16,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22883003] [2022-11-16 12:04:16,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:16,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:04:16,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:16,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:04:16,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:04:16,130 INFO L87 Difference]: Start difference. First operand 64 states and 83 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:16,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:04:16,149 INFO L93 Difference]: Finished difference Result 121 states and 160 transitions. [2022-11-16 12:04:16,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:04:16,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:04:16,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:04:16,151 INFO L225 Difference]: With dead ends: 121 [2022-11-16 12:04:16,151 INFO L226 Difference]: Without dead ends: 64 [2022-11-16 12:04:16,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:04:16,154 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 65 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:04:16,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 81 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:04:16,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-16 12:04:16,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-11-16 12:04:16,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 51 states have (on average 1.3333333333333333) internal successors, (68), 58 states have internal predecessors, (68), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-16 12:04:16,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 82 transitions. [2022-11-16 12:04:16,167 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 82 transitions. Word has length 24 [2022-11-16 12:04:16,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:04:16,167 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 82 transitions. [2022-11-16 12:04:16,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:16,168 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 82 transitions. [2022-11-16 12:04:16,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-16 12:04:16,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:04:16,170 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:16,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:04:16,171 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:04:16,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:16,172 INFO L85 PathProgramCache]: Analyzing trace with hash 412315462, now seen corresponding path program 1 times [2022-11-16 12:04:16,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:16,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924671605] [2022-11-16 12:04:16,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:16,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:16,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 12:04:16,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:16,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:04:16,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:16,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:16,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:16,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924671605] [2022-11-16 12:04:16,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924671605] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:16,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:16,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:04:16,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774835223] [2022-11-16 12:04:16,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:16,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:04:16,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:16,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:04:16,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:04:16,433 INFO L87 Difference]: Start difference. First operand 64 states and 82 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 12:04:16,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:04:16,666 INFO L93 Difference]: Finished difference Result 183 states and 235 transitions. [2022-11-16 12:04:16,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:04:16,667 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2022-11-16 12:04:16,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:04:16,669 INFO L225 Difference]: With dead ends: 183 [2022-11-16 12:04:16,669 INFO L226 Difference]: Without dead ends: 126 [2022-11-16 12:04:16,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:04:16,672 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 149 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:04:16,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 257 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:04:16,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-11-16 12:04:16,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 120. [2022-11-16 12:04:16,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 96 states have (on average 1.28125) internal successors, (123), 103 states have internal predecessors, (123), 10 states have call successors, (10), 10 states have call predecessors, (10), 13 states have return successors, (15), 11 states have call predecessors, (15), 10 states have call successors, (15) [2022-11-16 12:04:16,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 148 transitions. [2022-11-16 12:04:16,698 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 148 transitions. Word has length 34 [2022-11-16 12:04:16,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:04:16,698 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 148 transitions. [2022-11-16 12:04:16,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 12:04:16,699 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 148 transitions. [2022-11-16 12:04:16,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-16 12:04:16,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:04:16,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:16,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:04:16,701 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:04:16,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:16,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1451427371, now seen corresponding path program 1 times [2022-11-16 12:04:16,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:16,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91375524] [2022-11-16 12:04:16,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:16,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:16,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:16,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 12:04:16,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:16,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:16,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:16,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91375524] [2022-11-16 12:04:16,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91375524] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:16,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:16,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:04:16,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584768255] [2022-11-16 12:04:16,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:16,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:04:16,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:16,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:04:16,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:04:16,927 INFO L87 Difference]: Start difference. First operand 120 states and 148 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 12:04:17,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:04:17,158 INFO L93 Difference]: Finished difference Result 241 states and 301 transitions. [2022-11-16 12:04:17,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:04:17,159 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-11-16 12:04:17,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:04:17,166 INFO L225 Difference]: With dead ends: 241 [2022-11-16 12:04:17,166 INFO L226 Difference]: Without dead ends: 128 [2022-11-16 12:04:17,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:04:17,176 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 59 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:04:17,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 326 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:04:17,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-11-16 12:04:17,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 123. [2022-11-16 12:04:17,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 99 states have (on average 1.2727272727272727) internal successors, (126), 106 states have internal predecessors, (126), 10 states have call successors, (10), 10 states have call predecessors, (10), 13 states have return successors, (15), 11 states have call predecessors, (15), 10 states have call successors, (15) [2022-11-16 12:04:17,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 151 transitions. [2022-11-16 12:04:17,227 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 151 transitions. Word has length 38 [2022-11-16 12:04:17,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:04:17,228 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 151 transitions. [2022-11-16 12:04:17,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 12:04:17,229 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 151 transitions. [2022-11-16 12:04:17,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-16 12:04:17,233 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:04:17,234 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:17,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:04:17,235 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:04:17,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:17,236 INFO L85 PathProgramCache]: Analyzing trace with hash 440310121, now seen corresponding path program 1 times [2022-11-16 12:04:17,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:17,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970487415] [2022-11-16 12:04:17,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:17,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:17,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:17,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 12:04:17,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:17,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:17,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:17,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970487415] [2022-11-16 12:04:17,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970487415] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:17,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:17,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:04:17,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989807368] [2022-11-16 12:04:17,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:17,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:04:17,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:17,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:04:17,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:04:17,504 INFO L87 Difference]: Start difference. First operand 123 states and 151 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 12:04:17,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:04:17,703 INFO L93 Difference]: Finished difference Result 252 states and 316 transitions. [2022-11-16 12:04:17,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:04:17,704 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-11-16 12:04:17,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:04:17,708 INFO L225 Difference]: With dead ends: 252 [2022-11-16 12:04:17,708 INFO L226 Difference]: Without dead ends: 136 [2022-11-16 12:04:17,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:04:17,718 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 130 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:04:17,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 252 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:04:17,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-11-16 12:04:17,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 125. [2022-11-16 12:04:17,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 101 states have (on average 1.2673267326732673) internal successors, (128), 108 states have internal predecessors, (128), 10 states have call successors, (10), 10 states have call predecessors, (10), 13 states have return successors, (15), 11 states have call predecessors, (15), 10 states have call successors, (15) [2022-11-16 12:04:17,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 153 transitions. [2022-11-16 12:04:17,759 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 153 transitions. Word has length 38 [2022-11-16 12:04:17,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:04:17,760 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 153 transitions. [2022-11-16 12:04:17,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 12:04:17,761 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 153 transitions. [2022-11-16 12:04:17,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-16 12:04:17,762 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:04:17,762 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:17,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:04:17,763 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:04:17,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:17,764 INFO L85 PathProgramCache]: Analyzing trace with hash -580758233, now seen corresponding path program 1 times [2022-11-16 12:04:17,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:17,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563285368] [2022-11-16 12:04:17,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:17,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:17,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:17,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 12:04:17,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:17,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:17,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:17,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563285368] [2022-11-16 12:04:17,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563285368] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:17,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:17,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:04:17,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066448149] [2022-11-16 12:04:17,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:17,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:04:17,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:17,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:04:17,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:04:17,872 INFO L87 Difference]: Start difference. First operand 125 states and 153 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 12:04:18,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:04:18,176 INFO L93 Difference]: Finished difference Result 355 states and 457 transitions. [2022-11-16 12:04:18,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:04:18,177 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-11-16 12:04:18,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:04:18,182 INFO L225 Difference]: With dead ends: 355 [2022-11-16 12:04:18,183 INFO L226 Difference]: Without dead ends: 237 [2022-11-16 12:04:18,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:04:18,188 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 179 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:04:18,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 266 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:04:18,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-11-16 12:04:18,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 229. [2022-11-16 12:04:18,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 181 states have (on average 1.2596685082872927) internal successors, (228), 192 states have internal predecessors, (228), 23 states have call successors, (23), 23 states have call predecessors, (23), 24 states have return successors, (38), 23 states have call predecessors, (38), 23 states have call successors, (38) [2022-11-16 12:04:18,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 289 transitions. [2022-11-16 12:04:18,257 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 289 transitions. Word has length 38 [2022-11-16 12:04:18,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:04:18,258 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 289 transitions. [2022-11-16 12:04:18,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 12:04:18,260 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 289 transitions. [2022-11-16 12:04:18,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-16 12:04:18,268 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:04:18,269 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:18,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:04:18,269 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:04:18,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:18,270 INFO L85 PathProgramCache]: Analyzing trace with hash -360899650, now seen corresponding path program 1 times [2022-11-16 12:04:18,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:18,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978951632] [2022-11-16 12:04:18,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:18,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:18,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 12:04:18,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:18,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:04:18,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:18,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:18,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:18,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978951632] [2022-11-16 12:04:18,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978951632] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:18,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:18,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:04:18,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643145279] [2022-11-16 12:04:18,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:18,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:04:18,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:18,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:04:18,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:04:18,415 INFO L87 Difference]: Start difference. First operand 229 states and 289 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 12:04:18,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:04:18,643 INFO L93 Difference]: Finished difference Result 451 states and 570 transitions. [2022-11-16 12:04:18,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:04:18,644 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 40 [2022-11-16 12:04:18,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:04:18,646 INFO L225 Difference]: With dead ends: 451 [2022-11-16 12:04:18,646 INFO L226 Difference]: Without dead ends: 229 [2022-11-16 12:04:18,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:04:18,648 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 99 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:04:18,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 303 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:04:18,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-11-16 12:04:18,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 227. [2022-11-16 12:04:18,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 179 states have (on average 1.2513966480446927) internal successors, (224), 190 states have internal predecessors, (224), 23 states have call successors, (23), 23 states have call predecessors, (23), 24 states have return successors, (38), 23 states have call predecessors, (38), 23 states have call successors, (38) [2022-11-16 12:04:18,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 285 transitions. [2022-11-16 12:04:18,672 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 285 transitions. Word has length 40 [2022-11-16 12:04:18,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:04:18,672 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 285 transitions. [2022-11-16 12:04:18,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 12:04:18,673 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 285 transitions. [2022-11-16 12:04:18,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-16 12:04:18,674 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:04:18,674 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:18,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:04:18,674 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:04:18,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:18,675 INFO L85 PathProgramCache]: Analyzing trace with hash 2038696205, now seen corresponding path program 1 times [2022-11-16 12:04:18,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:18,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036410688] [2022-11-16 12:04:18,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:18,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:18,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 12:04:18,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:18,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-16 12:04:18,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:18,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:18,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:18,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036410688] [2022-11-16 12:04:18,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036410688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:18,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:18,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:04:18,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966336184] [2022-11-16 12:04:18,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:18,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:04:18,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:18,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:04:18,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:04:18,915 INFO L87 Difference]: Start difference. First operand 227 states and 285 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 12:04:19,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:04:19,339 INFO L93 Difference]: Finished difference Result 456 states and 585 transitions. [2022-11-16 12:04:19,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:04:19,340 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 42 [2022-11-16 12:04:19,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:04:19,343 INFO L225 Difference]: With dead ends: 456 [2022-11-16 12:04:19,343 INFO L226 Difference]: Without dead ends: 276 [2022-11-16 12:04:19,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-16 12:04:19,347 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 162 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:04:19,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 439 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 12:04:19,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-11-16 12:04:19,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 253. [2022-11-16 12:04:19,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 201 states have (on average 1.2338308457711442) internal successors, (248), 215 states have internal predecessors, (248), 24 states have call successors, (24), 23 states have call predecessors, (24), 27 states have return successors, (41), 24 states have call predecessors, (41), 24 states have call successors, (41) [2022-11-16 12:04:19,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 313 transitions. [2022-11-16 12:04:19,380 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 313 transitions. Word has length 42 [2022-11-16 12:04:19,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:04:19,381 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 313 transitions. [2022-11-16 12:04:19,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 12:04:19,381 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 313 transitions. [2022-11-16 12:04:19,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-16 12:04:19,384 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:04:19,385 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:19,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:04:19,386 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:04:19,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:19,387 INFO L85 PathProgramCache]: Analyzing trace with hash 871440435, now seen corresponding path program 1 times [2022-11-16 12:04:19,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:19,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385743749] [2022-11-16 12:04:19,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:19,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:19,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 12:04:19,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:19,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 12:04:19,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:19,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 12:04:19,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:19,627 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-16 12:04:19,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:19,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385743749] [2022-11-16 12:04:19,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385743749] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:04:19,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107815148] [2022-11-16 12:04:19,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:19,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:04:19,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:04:19,635 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:04:19,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:04:19,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:19,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 12:04:19,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:04:20,110 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:20,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:04:20,338 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:20,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107815148] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:04:20,338 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:04:20,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 12 [2022-11-16 12:04:20,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925203748] [2022-11-16 12:04:20,339 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:04:20,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:04:20,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:20,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:04:20,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:04:20,342 INFO L87 Difference]: Start difference. First operand 253 states and 313 transitions. Second operand has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 9 states have internal predecessors, (94), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-16 12:04:21,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:04:21,614 INFO L93 Difference]: Finished difference Result 628 states and 814 transitions. [2022-11-16 12:04:21,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-16 12:04:21,616 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 9 states have internal predecessors, (94), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 69 [2022-11-16 12:04:21,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:04:21,624 INFO L225 Difference]: With dead ends: 628 [2022-11-16 12:04:21,624 INFO L226 Difference]: Without dead ends: 424 [2022-11-16 12:04:21,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 140 SyntacticMatches, 6 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=312, Invalid=1328, Unknown=0, NotChecked=0, Total=1640 [2022-11-16 12:04:21,627 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 312 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:04:21,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 912 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 12:04:21,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-11-16 12:04:21,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 355. [2022-11-16 12:04:21,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 282 states have (on average 1.2234042553191489) internal successors, (345), 301 states have internal predecessors, (345), 34 states have call successors, (34), 33 states have call predecessors, (34), 38 states have return successors, (61), 32 states have call predecessors, (61), 34 states have call successors, (61) [2022-11-16 12:04:21,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 440 transitions. [2022-11-16 12:04:21,702 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 440 transitions. Word has length 69 [2022-11-16 12:04:21,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:04:21,703 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 440 transitions. [2022-11-16 12:04:21,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 9 states have internal predecessors, (94), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-16 12:04:21,704 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 440 transitions. [2022-11-16 12:04:21,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-16 12:04:21,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:04:21,709 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:21,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:04:21,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-16 12:04:21,917 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:04:21,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:21,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1761843705, now seen corresponding path program 1 times [2022-11-16 12:04:21,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:21,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728043514] [2022-11-16 12:04:21,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:21,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:21,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:22,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 12:04:22,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:22,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 12:04:22,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:22,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 12:04:22,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:22,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:04:22,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:22,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-16 12:04:22,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:22,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:04:22,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:22,148 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-16 12:04:22,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:22,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728043514] [2022-11-16 12:04:22,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728043514] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:04:22,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1342371122] [2022-11-16 12:04:22,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:22,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:04:22,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:04:22,151 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:04:22,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 12:04:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:22,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-16 12:04:22,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:04:22,746 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 11 proven. 39 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-16 12:04:22,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:04:23,295 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 42 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 12:04:23,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1342371122] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:04:23,295 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:04:23,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 13, 11] total 25 [2022-11-16 12:04:23,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091134172] [2022-11-16 12:04:23,296 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:04:23,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 12:04:23,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:23,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 12:04:23,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=505, Unknown=0, NotChecked=0, Total=600 [2022-11-16 12:04:23,299 INFO L87 Difference]: Start difference. First operand 355 states and 440 transitions. Second operand has 25 states, 25 states have (on average 7.6) internal successors, (190), 22 states have internal predecessors, (190), 9 states have call successors, (16), 7 states have call predecessors, (16), 8 states have return successors, (15), 9 states have call predecessors, (15), 9 states have call successors, (15) [2022-11-16 12:04:25,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:04:25,464 INFO L93 Difference]: Finished difference Result 730 states and 935 transitions. [2022-11-16 12:04:25,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-16 12:04:25,467 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 7.6) internal successors, (190), 22 states have internal predecessors, (190), 9 states have call successors, (16), 7 states have call predecessors, (16), 8 states have return successors, (15), 9 states have call predecessors, (15), 9 states have call successors, (15) Word has length 103 [2022-11-16 12:04:25,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:04:25,470 INFO L225 Difference]: With dead ends: 730 [2022-11-16 12:04:25,471 INFO L226 Difference]: Without dead ends: 424 [2022-11-16 12:04:25,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 211 SyntacticMatches, 3 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=484, Invalid=2272, Unknown=0, NotChecked=0, Total=2756 [2022-11-16 12:04:25,475 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 877 mSDsluCounter, 1661 mSDsCounter, 0 mSdLazyCounter, 1783 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 1827 SdHoareTripleChecker+Invalid, 2015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 1783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:04:25,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [880 Valid, 1827 Invalid, 2015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 1783 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 12:04:25,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-11-16 12:04:25,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 376. [2022-11-16 12:04:25,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 296 states have (on average 1.195945945945946) internal successors, (354), 313 states have internal predecessors, (354), 39 states have call successors, (39), 38 states have call predecessors, (39), 40 states have return successors, (47), 37 states have call predecessors, (47), 39 states have call successors, (47) [2022-11-16 12:04:25,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 440 transitions. [2022-11-16 12:04:25,533 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 440 transitions. Word has length 103 [2022-11-16 12:04:25,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:04:25,533 INFO L495 AbstractCegarLoop]: Abstraction has 376 states and 440 transitions. [2022-11-16 12:04:25,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 7.6) internal successors, (190), 22 states have internal predecessors, (190), 9 states have call successors, (16), 7 states have call predecessors, (16), 8 states have return successors, (15), 9 states have call predecessors, (15), 9 states have call successors, (15) [2022-11-16 12:04:25,534 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 440 transitions. [2022-11-16 12:04:25,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-16 12:04:25,536 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:04:25,536 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:25,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:04:25,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:04:25,743 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:04:25,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:25,744 INFO L85 PathProgramCache]: Analyzing trace with hash 669923069, now seen corresponding path program 1 times [2022-11-16 12:04:25,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:25,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389075237] [2022-11-16 12:04:25,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:25,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:25,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:26,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 12:04:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:26,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 12:04:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:26,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 12:04:26,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:26,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:04:26,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:26,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-16 12:04:26,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:26,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:04:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:26,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-16 12:04:26,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:26,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:04:26,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:26,271 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 51 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-16 12:04:26,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:26,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389075237] [2022-11-16 12:04:26,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389075237] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:04:26,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672918251] [2022-11-16 12:04:26,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:26,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:04:26,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:04:26,276 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:04:26,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 12:04:26,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:26,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 12:04:26,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:04:26,739 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 65 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:26,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:04:27,030 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 52 proven. 11 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-16 12:04:27,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672918251] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:04:27,031 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:04:27,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 8] total 19 [2022-11-16 12:04:27,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772238250] [2022-11-16 12:04:27,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:04:27,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 12:04:27,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:27,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 12:04:27,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-16 12:04:27,033 INFO L87 Difference]: Start difference. First operand 376 states and 440 transitions. Second operand has 19 states, 19 states have (on average 6.315789473684211) internal successors, (120), 17 states have internal predecessors, (120), 6 states have call successors, (19), 8 states have call predecessors, (19), 6 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-16 12:04:28,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:04:28,127 INFO L93 Difference]: Finished difference Result 835 states and 1005 transitions. [2022-11-16 12:04:28,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 12:04:28,128 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.315789473684211) internal successors, (120), 17 states have internal predecessors, (120), 6 states have call successors, (19), 8 states have call predecessors, (19), 6 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 110 [2022-11-16 12:04:28,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:04:28,131 INFO L225 Difference]: With dead ends: 835 [2022-11-16 12:04:28,131 INFO L226 Difference]: Without dead ends: 503 [2022-11-16 12:04:28,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 226 SyntacticMatches, 5 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=254, Invalid=676, Unknown=0, NotChecked=0, Total=930 [2022-11-16 12:04:28,134 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 737 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:04:28,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 653 Invalid, 888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 12:04:28,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2022-11-16 12:04:28,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 405. [2022-11-16 12:04:28,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 317 states have (on average 1.1987381703470033) internal successors, (380), 335 states have internal predecessors, (380), 43 states have call successors, (43), 41 states have call predecessors, (43), 44 states have return successors, (55), 42 states have call predecessors, (55), 43 states have call successors, (55) [2022-11-16 12:04:28,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 478 transitions. [2022-11-16 12:04:28,189 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 478 transitions. Word has length 110 [2022-11-16 12:04:28,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:04:28,189 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 478 transitions. [2022-11-16 12:04:28,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.315789473684211) internal successors, (120), 17 states have internal predecessors, (120), 6 states have call successors, (19), 8 states have call predecessors, (19), 6 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-16 12:04:28,190 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 478 transitions. [2022-11-16 12:04:28,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-16 12:04:28,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:04:28,192 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:28,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:04:28,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:04:28,399 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:04:28,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:28,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1113823743, now seen corresponding path program 1 times [2022-11-16 12:04:28,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:28,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427591821] [2022-11-16 12:04:28,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:28,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:28,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 12:04:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:28,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 12:04:28,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:28,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 12:04:28,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:28,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:04:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:28,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-16 12:04:28,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:28,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:04:28,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:28,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-16 12:04:28,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:28,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:04:28,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:28,697 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 42 proven. 9 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-16 12:04:28,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:28,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427591821] [2022-11-16 12:04:28,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427591821] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:04:28,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137571601] [2022-11-16 12:04:28,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:28,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:04:28,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:04:28,700 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:04:28,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 12:04:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:28,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:04:28,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:04:28,892 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-16 12:04:28,896 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:04:28,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137571601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:28,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:04:28,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 9 [2022-11-16 12:04:28,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827409605] [2022-11-16 12:04:28,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:28,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:04:28,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:28,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:04:28,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:04:28,902 INFO L87 Difference]: Start difference. First operand 405 states and 478 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-16 12:04:28,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:04:28,971 INFO L93 Difference]: Finished difference Result 594 states and 694 transitions. [2022-11-16 12:04:28,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:04:28,972 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 110 [2022-11-16 12:04:28,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:04:28,972 INFO L225 Difference]: With dead ends: 594 [2022-11-16 12:04:28,973 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 12:04:28,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:04:28,975 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 27 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:04:28,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 297 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:04:28,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 12:04:28,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 12:04:28,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:28,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 12:04:28,977 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 110 [2022-11-16 12:04:28,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:04:28,977 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:04:28,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-16 12:04:28,978 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 12:04:28,978 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 12:04:28,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 12:04:28,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:04:29,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-16 12:04:29,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 12:04:32,620 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 303 309) no Hoare annotation was computed. [2022-11-16 12:04:32,620 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 303 309) the Hoare annotation is: true [2022-11-16 12:04:32,620 INFO L899 garLoopResultBuilder]: For program point L97-1(lines 93 104) no Hoare annotation was computed. [2022-11-16 12:04:32,620 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 93 104) the Hoare annotation is: true [2022-11-16 12:04:32,621 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 93 104) no Hoare annotation was computed. [2022-11-16 12:04:32,621 INFO L899 garLoopResultBuilder]: For program point L283-1(lines 282 301) no Hoare annotation was computed. [2022-11-16 12:04:32,621 INFO L899 garLoopResultBuilder]: For program point L345(lines 345 353) no Hoare annotation was computed. [2022-11-16 12:04:32,621 INFO L899 garLoopResultBuilder]: For program point L341(lines 341 358) no Hoare annotation was computed. [2022-11-16 12:04:32,621 INFO L899 garLoopResultBuilder]: For program point L73(lines 73 77) no Hoare annotation was computed. [2022-11-16 12:04:32,621 INFO L899 garLoopResultBuilder]: For program point L585(lines 585 591) no Hoare annotation was computed. [2022-11-16 12:04:32,622 INFO L895 garLoopResultBuilder]: At program point L73-2(lines 69 80) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (= ~waterLevel~0 1)) .cse1 (not (= |old(~waterLevel~0)| 2))))) [2022-11-16 12:04:32,622 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 279 302) no Hoare annotation was computed. [2022-11-16 12:04:32,622 INFO L899 garLoopResultBuilder]: For program point L581(lines 581 594) no Hoare annotation was computed. [2022-11-16 12:04:32,622 INFO L895 garLoopResultBuilder]: At program point L581-1(lines 573 597) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ~waterLevel~0 1)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and .cse2 (= |timeShift___utac_acc__Specification4_spec__1_~tmp~6#1| 1) .cse3 (= |timeShift_getWaterLevel_#res#1| 1))) (or (and (<= 1 |timeShift_processEnvironment_~tmp~2#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse0 .cse2 (<= 1 |timeShift_isLowWaterLevel_~tmp___0~1#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (= |timeShift_isLowWaterLevel_~tmp~4#1| 0) (<= 1 |timeShift___utac_acc__Specification4_spec__1_~tmp~6#1|) (<= 1 |timeShift_getWaterLevel_#res#1|) .cse3) .cse1 (and (<= 2 |timeShift___utac_acc__Specification4_spec__1_~tmp~6#1|) (= |old(~waterLevel~0)| ~waterLevel~0) (<= 2 |timeShift_getWaterLevel_#res#1|)) (not (= |old(~waterLevel~0)| 2))))) [2022-11-16 12:04:32,623 INFO L895 garLoopResultBuilder]: At program point L375(lines 370 377) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (and (<= 1 |timeShift_processEnvironment_~tmp~2#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse1 (= ~pumpRunning~0 0) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~1#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (= |timeShift_isLowWaterLevel_~tmp~4#1| 0) (= ~waterLevel~0 1)) (not (= |old(~waterLevel~0)| 2))) (or .cse1 (not (= |old(~waterLevel~0)| 1)) .cse0))) [2022-11-16 12:04:32,623 INFO L899 garLoopResultBuilder]: For program point L462(lines 462 466) no Hoare annotation was computed. [2022-11-16 12:04:32,623 INFO L899 garLoopResultBuilder]: For program point L462-2(lines 462 466) no Hoare annotation was computed. [2022-11-16 12:04:32,623 INFO L895 garLoopResultBuilder]: At program point L165(lines 160 168) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse0 (= ~waterLevel~0 1)) .cse1 (not (= |old(~waterLevel~0)| 2))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1))) [2022-11-16 12:04:32,623 INFO L895 garLoopResultBuilder]: At program point L351(line 351) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1)) .cse0) (or .cse0 (not (= |old(~waterLevel~0)| 2))))) [2022-11-16 12:04:32,623 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2022-11-16 12:04:32,624 INFO L895 garLoopResultBuilder]: At program point L356(line 356) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1)) .cse0 (and .cse1 (= ~waterLevel~0 1))) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~waterLevel~0)| 2))))) [2022-11-16 12:04:32,624 INFO L895 garLoopResultBuilder]: At program point L356-1(lines 337 361) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ~waterLevel~0 1))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and .cse2 .cse3)) (or .cse1 (and (<= 1 |timeShift_processEnvironment_~tmp~2#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse0 .cse2 (<= 1 |timeShift_isLowWaterLevel_~tmp___0~1#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (= |timeShift_isLowWaterLevel_~tmp~4#1| 0) .cse3) (not (= |old(~waterLevel~0)| 2)) (= |old(~waterLevel~0)| ~waterLevel~0)))) [2022-11-16 12:04:32,624 INFO L899 garLoopResultBuilder]: For program point L290-1(lines 290 296) no Hoare annotation was computed. [2022-11-16 12:04:32,624 INFO L895 garLoopResultBuilder]: At program point L55(lines 50 57) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1)) .cse0) (or .cse0 (not (= |old(~waterLevel~0)| 2))))) [2022-11-16 12:04:32,625 INFO L895 garLoopResultBuilder]: At program point L468(lines 453 471) the Hoare annotation is: (let ((.cse1 (not (= |old(~waterLevel~0)| 2))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0)))) (and (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~1#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (= |timeShift_isLowWaterLevel_~tmp~4#1| 0) (= ~waterLevel~0 1)) .cse0 .cse1) (or .cse2 .cse0 .cse1) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse0))) [2022-11-16 12:04:32,625 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 279 302) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~waterLevel~0)| 2))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1)) .cse0 (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1))))) [2022-11-16 12:04:32,625 INFO L895 garLoopResultBuilder]: At program point L142(lines 137 145) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ~waterLevel~0 1))) (and (or .cse0 (and (<= 1 |timeShift_processEnvironment_~tmp~2#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse1 .cse2 (<= 1 |timeShift_isLowWaterLevel_~tmp___0~1#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (= |timeShift_isLowWaterLevel_~tmp~4#1| 0) (<= 1 |timeShift_getWaterLevel_#res#1|) .cse3) (not (= |old(~waterLevel~0)| 2)) (and (= |old(~waterLevel~0)| ~waterLevel~0) (<= 2 |timeShift_getWaterLevel_#res#1|))) (or .cse1 (not (= |old(~waterLevel~0)| 1)) .cse0 (and .cse2 .cse3 (= |timeShift_getWaterLevel_#res#1| 1))))) [2022-11-16 12:04:32,625 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 279 302) no Hoare annotation was computed. [2022-11-16 12:04:32,625 INFO L895 garLoopResultBuilder]: At program point L394(lines 389 397) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1)) .cse0) (or .cse0 (not (= |old(~waterLevel~0)| 2))))) [2022-11-16 12:04:32,626 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2022-11-16 12:04:32,626 INFO L899 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2022-11-16 12:04:32,626 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 172 201) no Hoare annotation was computed. [2022-11-16 12:04:32,626 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 172 201) the Hoare annotation is: true [2022-11-16 12:04:32,626 INFO L899 garLoopResultBuilder]: For program point L186(lines 186 190) no Hoare annotation was computed. [2022-11-16 12:04:32,626 INFO L902 garLoopResultBuilder]: At program point L186-1(lines 186 190) the Hoare annotation is: true [2022-11-16 12:04:32,626 INFO L899 garLoopResultBuilder]: For program point L183(line 183) no Hoare annotation was computed. [2022-11-16 12:04:32,627 INFO L902 garLoopResultBuilder]: At program point L182-2(lines 182 196) the Hoare annotation is: true [2022-11-16 12:04:32,634 INFO L902 garLoopResultBuilder]: At program point L178(line 178) the Hoare annotation is: true [2022-11-16 12:04:32,634 INFO L899 garLoopResultBuilder]: For program point L178-1(line 178) no Hoare annotation was computed. [2022-11-16 12:04:32,634 INFO L902 garLoopResultBuilder]: At program point L197(lines 172 201) the Hoare annotation is: true [2022-11-16 12:04:32,634 INFO L899 garLoopResultBuilder]: For program point L258-2(lines 258 265) no Hoare annotation was computed. [2022-11-16 12:04:32,635 INFO L895 garLoopResultBuilder]: At program point L568(lines 563 571) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-16 12:04:32,635 INFO L902 garLoopResultBuilder]: At program point L242(lines 235 244) the Hoare annotation is: true [2022-11-16 12:04:32,635 INFO L895 garLoopResultBuilder]: At program point L560(lines 556 562) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-16 12:04:32,635 INFO L902 garLoopResultBuilder]: At program point L267(lines 248 270) the Hoare annotation is: true [2022-11-16 12:04:32,636 INFO L899 garLoopResultBuilder]: For program point L519(lines 519 523) no Hoare annotation was computed. [2022-11-16 12:04:32,636 INFO L895 garLoopResultBuilder]: At program point L519-2(lines 513 524) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (= ~waterLevel~0 1)))) [2022-11-16 12:04:32,636 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-16 12:04:32,636 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 12:04:32,636 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-16 12:04:32,637 INFO L899 garLoopResultBuilder]: For program point L503(lines 503 509) no Hoare annotation was computed. [2022-11-16 12:04:32,637 INFO L899 garLoopResultBuilder]: For program point L503-1(lines 503 509) no Hoare annotation was computed. [2022-11-16 12:04:32,637 INFO L902 garLoopResultBuilder]: At program point L532(lines 473 536) the Hoare annotation is: true [2022-11-16 12:04:32,638 INFO L895 garLoopResultBuilder]: At program point L495(line 495) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (= ~waterLevel~0 1)))) [2022-11-16 12:04:32,638 INFO L895 garLoopResultBuilder]: At program point L553(lines 549 555) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-16 12:04:32,638 INFO L895 garLoopResultBuilder]: At program point L231(lines 227 233) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-16 12:04:32,638 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 12:04:32,639 INFO L895 garLoopResultBuilder]: At program point L529(lines 482 530) the Hoare annotation is: false [2022-11-16 12:04:32,640 INFO L899 garLoopResultBuilder]: For program point L484(lines 483 528) no Hoare annotation was computed. [2022-11-16 12:04:32,640 INFO L899 garLoopResultBuilder]: For program point L513(lines 513 524) no Hoare annotation was computed. [2022-11-16 12:04:32,641 INFO L895 garLoopResultBuilder]: At program point L505(line 505) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (= ~waterLevel~0 1)))) [2022-11-16 12:04:32,641 INFO L895 garLoopResultBuilder]: At program point L526(lines 483 528) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (= ~waterLevel~0 1)))) [2022-11-16 12:04:32,641 INFO L899 garLoopResultBuilder]: For program point L493(lines 493 499) no Hoare annotation was computed. [2022-11-16 12:04:32,641 INFO L899 garLoopResultBuilder]: For program point L493-1(lines 493 499) no Hoare annotation was computed. [2022-11-16 12:04:32,641 INFO L899 garLoopResultBuilder]: For program point L485(lines 485 489) no Hoare annotation was computed. [2022-11-16 12:04:32,642 INFO L899 garLoopResultBuilder]: For program point L258(lines 258 265) no Hoare annotation was computed. [2022-11-16 12:04:32,642 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 311 335) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (= 2 ~waterLevel~0))))) [2022-11-16 12:04:32,642 INFO L895 garLoopResultBuilder]: At program point L155(lines 146 159) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 .cse2 (not (= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse2 (and .cse1 (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)))))) [2022-11-16 12:04:32,643 INFO L895 garLoopResultBuilder]: At program point L325(line 325) the Hoare annotation is: (let ((.cse3 (= 1 ~systemActive~0))) (let ((.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) .cse3 (= |processEnvironment__wrappee__highWaterSensor_~tmp~1#1| 0))) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not .cse3))) (and (or .cse0 .cse1 .cse2 (not (= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2)))) [2022-11-16 12:04:32,643 INFO L895 garLoopResultBuilder]: At program point L449(lines 434 452) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (not (= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 (and .cse1 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~0#1| 0) (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~3#1| 0))) .cse2))) [2022-11-16 12:04:32,643 INFO L899 garLoopResultBuilder]: For program point L319(lines 319 327) no Hoare annotation was computed. [2022-11-16 12:04:32,644 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 311 335) no Hoare annotation was computed. [2022-11-16 12:04:32,644 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 332) no Hoare annotation was computed. [2022-11-16 12:04:32,644 INFO L899 garLoopResultBuilder]: For program point L443(lines 443 447) no Hoare annotation was computed. [2022-11-16 12:04:32,645 INFO L899 garLoopResultBuilder]: For program point L443-2(lines 443 447) no Hoare annotation was computed. [2022-11-16 12:04:32,645 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 156) no Hoare annotation was computed. [2022-11-16 12:04:32,645 INFO L895 garLoopResultBuilder]: At program point L367(lines 362 369) the Hoare annotation is: (or (not (= ~waterLevel~0 1)) (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2022-11-16 12:04:32,645 INFO L895 garLoopResultBuilder]: At program point L330(line 330) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1))) [2022-11-16 12:04:32,645 INFO L899 garLoopResultBuilder]: For program point L330-1(lines 311 335) no Hoare annotation was computed. [2022-11-16 12:04:32,648 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 81 92) no Hoare annotation was computed. [2022-11-16 12:04:32,648 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 81 92) no Hoare annotation was computed. [2022-11-16 12:04:32,648 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 81 92) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= ~pumpRunning~0 0)) (not (= |old(~waterLevel~0)| 1)) .cse0 (= ~waterLevel~0 1)) (or .cse0 (not (= |old(~waterLevel~0)| 2)) (= |old(~waterLevel~0)| ~waterLevel~0)))) [2022-11-16 12:04:32,652 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:32,655 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:04:32,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:04:32 BoogieIcfgContainer [2022-11-16 12:04:32,711 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:04:32,711 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:04:32,712 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:04:32,712 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:04:32,713 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:04:14" (3/4) ... [2022-11-16 12:04:32,716 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 12:04:32,725 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-16 12:04:32,725 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-16 12:04:32,725 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-16 12:04:32,726 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-16 12:04:32,726 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-16 12:04:32,726 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-16 12:04:32,746 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 53 nodes and edges [2022-11-16 12:04:32,747 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-16 12:04:32,748 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-16 12:04:32,748 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-16 12:04:32,749 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 12:04:32,752 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:04:32,753 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:04:32,795 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) && ((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && waterLevel == 1) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) [2022-11-16 12:04:32,796 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1)) && (((!(1 == systemActive) || (((((((1 <= tmp && \result == 0) && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && 1 <= tmp___0) && 1 <= \result) && tmp == 0) && waterLevel == 1)) || !(\old(waterLevel) == 2)) || \old(waterLevel) == waterLevel) [2022-11-16 12:04:32,798 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || ((((((((1 <= tmp && \result == 0) && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && 1 <= tmp___0) && 1 <= \result) && tmp == 0) && 1 <= \result) && waterLevel == 1)) || !(\old(waterLevel) == 2)) || (\old(waterLevel) == waterLevel && 2 <= \result)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((pumpRunning == 0 && waterLevel == 1) && \result == 1)) [2022-11-16 12:04:32,799 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (((pumpRunning == 0 && tmp == 1) && waterLevel == 1) && \result == 1)) && ((((((((((((1 <= tmp && \result == 0) && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && 1 <= tmp___0) && 1 <= \result) && tmp == 0) && 1 <= tmp) && 1 <= \result) && waterLevel == 1) || !(1 == systemActive)) || ((2 <= tmp && \old(waterLevel) == waterLevel) && 2 <= \result)) || !(\old(waterLevel) == 2)) [2022-11-16 12:04:32,799 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == \old(pumpRunning) && \result == 0) && !(\old(pumpRunning) == 0)) && waterLevel == 1) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) [2022-11-16 12:04:32,800 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(2 == waterLevel)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && !(\result == 0))) [2022-11-16 12:04:32,800 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) && (!(1 == systemActive) || !(\old(waterLevel) == 2)) [2022-11-16 12:04:32,800 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= tmp___0) && 1 <= \result) && tmp == 0) && waterLevel == 1) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) == 2))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) [2022-11-16 12:04:32,801 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(2 == waterLevel)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || (((pumpRunning == 0 && \result == 0) && tmp___0 == 0) && !(tmp == 0))) || !(1 == systemActive)) [2022-11-16 12:04:32,801 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) && (!(1 == systemActive) || !(\old(waterLevel) == 2)) [2022-11-16 12:04:32,801 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || (((((((1 <= tmp && \result == 0) && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && 1 <= tmp___0) && 1 <= \result) && tmp == 0) && waterLevel == 1)) || !(\old(waterLevel) == 2)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) [2022-11-16 12:04:32,802 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive) [2022-11-16 12:04:32,850 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:04:32,851 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:04:32,852 INFO L158 Benchmark]: Toolchain (without parser) took 19679.42ms. Allocated memory was 115.3MB in the beginning and 207.6MB in the end (delta: 92.3MB). Free memory was 77.5MB in the beginning and 119.5MB in the end (delta: -42.0MB). Peak memory consumption was 51.2MB. Max. memory is 16.1GB. [2022-11-16 12:04:32,852 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 115.3MB. Free memory is still 94.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:04:32,852 INFO L158 Benchmark]: CACSL2BoogieTranslator took 817.84ms. Allocated memory is still 115.3MB. Free memory was 77.3MB in the beginning and 84.0MB in the end (delta: -6.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 12:04:32,853 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.40ms. Allocated memory is still 115.3MB. Free memory was 84.0MB in the beginning and 81.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:04:32,854 INFO L158 Benchmark]: Boogie Preprocessor took 79.47ms. Allocated memory is still 115.3MB. Free memory was 81.3MB in the beginning and 79.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:04:32,854 INFO L158 Benchmark]: RCFGBuilder took 706.13ms. Allocated memory is still 115.3MB. Free memory was 79.8MB in the beginning and 61.3MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-16 12:04:32,855 INFO L158 Benchmark]: TraceAbstraction took 17843.90ms. Allocated memory was 115.3MB in the beginning and 207.6MB in the end (delta: 92.3MB). Free memory was 60.3MB in the beginning and 125.9MB in the end (delta: -65.5MB). Peak memory consumption was 95.1MB. Max. memory is 16.1GB. [2022-11-16 12:04:32,857 INFO L158 Benchmark]: Witness Printer took 139.45ms. Allocated memory is still 207.6MB. Free memory was 125.9MB in the beginning and 119.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-16 12:04:32,860 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 115.3MB. Free memory is still 94.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 817.84ms. Allocated memory is still 115.3MB. Free memory was 77.3MB in the beginning and 84.0MB in the end (delta: -6.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.40ms. Allocated memory is still 115.3MB. Free memory was 84.0MB in the beginning and 81.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.47ms. Allocated memory is still 115.3MB. Free memory was 81.3MB in the beginning and 79.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 706.13ms. Allocated memory is still 115.3MB. Free memory was 79.8MB in the beginning and 61.3MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 17843.90ms. Allocated memory was 115.3MB in the beginning and 207.6MB in the end (delta: 92.3MB). Free memory was 60.3MB in the beginning and 125.9MB in the end (delta: -65.5MB). Peak memory consumption was 95.1MB. Max. memory is 16.1GB. * Witness Printer took 139.45ms. Allocated memory is still 207.6MB. Free memory was 125.9MB in the beginning and 119.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 82 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.7s, OverallIterations: 13, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2835 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2808 mSDsluCounter, 5865 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4583 mSDsCounter, 723 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4076 IncrementalHoareTripleChecker+Invalid, 4799 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 723 mSolverCounterUnsat, 1282 mSDtfsCounter, 4076 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 933 GetRequests, 742 SyntacticMatches, 15 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1105 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=405occurred in iteration=12, InterpolantAutomatonStates: 147, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 270 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 38 LocationsWithAnnotation, 1116 PreInvPairs, 1185 NumberOfFragments, 911 HoareAnnotationTreeSize, 1116 FomulaSimplifications, 1473 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 38 FomulaSimplificationsInter, 6561 FormulaSimplificationTreeSizeReductionInter, 3.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 1077 NumberOfCodeBlocks, 1077 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1339 ConstructedInterpolants, 0 QuantifiedInterpolants, 2966 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1903 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 20 InterpolantComputations, 10 PerfectInterpolantSequences, 508/604 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 337]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1)) && (((!(1 == systemActive) || (((((((1 <= tmp && \result == 0) && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && 1 <= tmp___0) && 1 <= \result) && tmp == 0) && waterLevel == 1)) || !(\old(waterLevel) == 2)) || \old(waterLevel) == waterLevel) - InvariantResult [Line: 453]: Loop Invariant Derived loop invariant: ((((((((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= tmp___0) && 1 <= \result) && tmp == 0) && waterLevel == 1) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) == 2))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) - InvariantResult [Line: 556]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 362]: Loop Invariant Derived loop invariant: (!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive) - InvariantResult [Line: 482]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 473]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || ((((((((1 <= tmp && \result == 0) && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && 1 <= tmp___0) && 1 <= \result) && tmp == 0) && 1 <= \result) && waterLevel == 1)) || !(\old(waterLevel) == 2)) || (\old(waterLevel) == waterLevel && 2 <= \result)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((pumpRunning == 0 && waterLevel == 1) && \result == 1)) - InvariantResult [Line: 248]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 549]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) && ((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && waterLevel == 1) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) - InvariantResult [Line: 389]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) && (!(1 == systemActive) || !(\old(waterLevel) == 2)) - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(2 == waterLevel)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || (((pumpRunning == 0 && \result == 0) && tmp___0 == 0) && !(tmp == 0))) || !(1 == systemActive)) - InvariantResult [Line: 483]: Loop Invariant Derived loop invariant: ((2 == waterLevel && 1 == systemActive) && splverifierCounter == 0) || (((pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0) && waterLevel == 1) - InvariantResult [Line: 227]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 160]: Loop Invariant Derived loop invariant: (((((pumpRunning == \old(pumpRunning) && \result == 0) && !(\old(pumpRunning) == 0)) && waterLevel == 1) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) && (!(1 == systemActive) || !(\old(waterLevel) == 2)) - InvariantResult [Line: 235]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (((pumpRunning == 0 && tmp == 1) && waterLevel == 1) && \result == 1)) && ((((((((((((1 <= tmp && \result == 0) && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && 1 <= tmp___0) && 1 <= \result) && tmp == 0) && 1 <= tmp) && 1 <= \result) && waterLevel == 1) || !(1 == systemActive)) || ((2 <= tmp && \old(waterLevel) == waterLevel) && 2 <= \result)) || !(\old(waterLevel) == 2)) - InvariantResult [Line: 563]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 370]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || (((((((1 <= tmp && \result == 0) && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && 1 <= tmp___0) && 1 <= \result) && tmp == 0) && waterLevel == 1)) || !(\old(waterLevel) == 2)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(2 == waterLevel)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && !(\result == 0))) RESULT: Ultimate proved your program to be correct! [2022-11-16 12:04:32,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f775bdfe-7c2c-43d6-9721-e3674db28067/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE