./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_ebda0541-67ca-4130-941e-8e7b244f6a1f/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebda0541-67ca-4130-941e-8e7b244f6a1f/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebda0541-67ca-4130-941e-8e7b244f6a1f/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebda0541-67ca-4130-941e-8e7b244f6a1f/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebda0541-67ca-4130-941e-8e7b244f6a1f/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebda0541-67ca-4130-941e-8e7b244f6a1f/bin/uautomizer-ug76WZFUDN --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 a64b003b731919e31189fa64bb054d2c00bb1b0f73ef780cb3fb445d82092416 --- 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-6b4ec56 [2022-11-20 11:33:32,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:33:32,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:33:32,237 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:33:32,237 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:33:32,241 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:33:32,247 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:33:32,251 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:33:32,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:33:32,260 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:33:32,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:33:32,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:33:32,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:33:32,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:33:32,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:33:32,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:33:32,277 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:33:32,278 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:33:32,281 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:33:32,287 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:33:32,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:33:32,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:33:32,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:33:32,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:33:32,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:33:32,308 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:33:32,308 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:33:32,309 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:33:32,311 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:33:32,313 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:33:32,314 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:33:32,315 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:33:32,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:33:32,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:33:32,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:33:32,321 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:33:32,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:33:32,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:33:32,322 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:33:32,324 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:33:32,325 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:33:32,326 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebda0541-67ca-4130-941e-8e7b244f6a1f/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 11:33:32,374 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:33:32,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:33:32,375 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:33:32,375 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:33:32,376 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:33:32,376 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:33:32,377 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:33:32,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:33:32,378 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:33:32,378 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:33:32,378 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:33:32,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:33:32,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:33:32,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:33:32,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:33:32,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:33:32,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:33:32,383 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:33:32,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:33:32,383 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:33:32,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:33:32,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:33:32,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:33:32,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:33:32,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:33:32,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:33:32,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:33:32,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:33:32,387 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:33:32,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:33:32,387 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:33:32,388 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:33:32,388 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:33:32,388 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_ebda0541-67ca-4130-941e-8e7b244f6a1f/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebda0541-67ca-4130-941e-8e7b244f6a1f/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a64b003b731919e31189fa64bb054d2c00bb1b0f73ef780cb3fb445d82092416 [2022-11-20 11:33:32,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:33:32,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:33:32,813 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:33:32,815 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:33:32,815 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:33:32,817 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebda0541-67ca-4130-941e-8e7b244f6a1f/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c [2022-11-20 11:33:36,188 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:33:36,457 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:33:36,458 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebda0541-67ca-4130-941e-8e7b244f6a1f/sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c [2022-11-20 11:33:36,476 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebda0541-67ca-4130-941e-8e7b244f6a1f/bin/uautomizer-ug76WZFUDN/data/285386815/d8e0f1d7b7a14d49b05ece6f8584e9a4/FLAGc07c157b1 [2022-11-20 11:33:36,496 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebda0541-67ca-4130-941e-8e7b244f6a1f/bin/uautomizer-ug76WZFUDN/data/285386815/d8e0f1d7b7a14d49b05ece6f8584e9a4 [2022-11-20 11:33:36,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:33:36,501 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:33:36,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:33:36,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:33:36,507 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:33:36,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:33:36" (1/1) ... [2022-11-20 11:33:36,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ac35b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:36, skipping insertion in model container [2022-11-20 11:33:36,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:33:36" (1/1) ... [2022-11-20 11:33:36,517 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:33:36,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:33:36,718 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebda0541-67ca-4130-941e-8e7b244f6a1f/sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c[1605,1618] [2022-11-20 11:33:36,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:33:36,839 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:33:36,853 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebda0541-67ca-4130-941e-8e7b244f6a1f/sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c[1605,1618] [2022-11-20 11:33:36,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:33:36,969 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:33:36,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:36 WrapperNode [2022-11-20 11:33:36,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:33:36,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:33:36,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:33:36,971 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:33:36,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:36" (1/1) ... [2022-11-20 11:33:36,995 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:36" (1/1) ... [2022-11-20 11:33:37,038 INFO L138 Inliner]: procedures = 51, calls = 95, calls flagged for inlining = 19, calls inlined = 16, statements flattened = 160 [2022-11-20 11:33:37,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:33:37,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:33:37,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:33:37,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:33:37,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:36" (1/1) ... [2022-11-20 11:33:37,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:36" (1/1) ... [2022-11-20 11:33:37,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:36" (1/1) ... [2022-11-20 11:33:37,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:36" (1/1) ... [2022-11-20 11:33:37,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:36" (1/1) ... [2022-11-20 11:33:37,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:36" (1/1) ... [2022-11-20 11:33:37,106 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:36" (1/1) ... [2022-11-20 11:33:37,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:36" (1/1) ... [2022-11-20 11:33:37,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:33:37,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:33:37,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:33:37,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:33:37,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:36" (1/1) ... [2022-11-20 11:33:37,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:33:37,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebda0541-67ca-4130-941e-8e7b244f6a1f/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:33:37,172 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebda0541-67ca-4130-941e-8e7b244f6a1f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:33:37,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebda0541-67ca-4130-941e-8e7b244f6a1f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:33:37,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:33:37,223 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-20 11:33:37,224 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-20 11:33:37,224 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-20 11:33:37,224 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-20 11:33:37,224 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-20 11:33:37,225 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-20 11:33:37,225 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-20 11:33:37,225 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-20 11:33:37,225 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-20 11:33:37,225 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-20 11:33:37,226 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-20 11:33:37,226 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-20 11:33:37,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:33:37,226 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-20 11:33:37,227 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-20 11:33:37,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:33:37,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:33:37,326 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:33:37,329 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:33:37,663 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:33:37,672 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:33:37,672 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 11:33:37,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:33:37 BoogieIcfgContainer [2022-11-20 11:33:37,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:33:37,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:33:37,679 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:33:37,683 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:33:37,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:33:36" (1/3) ... [2022-11-20 11:33:37,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a99f85e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:33:37, skipping insertion in model container [2022-11-20 11:33:37,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:36" (2/3) ... [2022-11-20 11:33:37,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a99f85e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:33:37, skipping insertion in model container [2022-11-20 11:33:37,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:33:37" (3/3) ... [2022-11-20 11:33:37,687 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product07.cil.c [2022-11-20 11:33:37,711 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:33:37,712 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:33:37,801 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:33:37,809 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;@b0f0337, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:33:37,816 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:33:37,829 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 60 states have (on average 1.3833333333333333) internal successors, (83), 67 states have internal predecessors, (83), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-20 11:33:37,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-20 11:33:37,846 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:33:37,847 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:33:37,848 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:33:37,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:37,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1914579699, now seen corresponding path program 1 times [2022-11-20 11:33:37,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:33:37,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206895694] [2022-11-20 11:33:37,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:33:37,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:33:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:38,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 11:33:38,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:38,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:33:38,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:33:38,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206895694] [2022-11-20 11:33:38,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206895694] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:33:38,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:33:38,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:33:38,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815931885] [2022-11-20 11:33:38,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:33:38,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 11:33:38,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:33:38,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 11:33:38,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:33:38,163 INFO L87 Difference]: Start difference. First operand has 81 states, 60 states have (on average 1.3833333333333333) internal successors, (83), 67 states have internal predecessors, (83), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 11:33:38,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:33:38,242 INFO L93 Difference]: Finished difference Result 154 states and 209 transitions. [2022-11-20 11:33:38,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 11:33:38,245 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-11-20 11:33:38,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:33:38,265 INFO L225 Difference]: With dead ends: 154 [2022-11-20 11:33:38,265 INFO L226 Difference]: Without dead ends: 72 [2022-11-20 11:33:38,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:33:38,278 INFO L413 NwaCegarLoop]: 101 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, 101 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 [2022-11-20 11:33:38,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:33:38,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-20 11:33:38,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2022-11-20 11:33:38,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 53 states have (on average 1.3018867924528301) internal successors, (69), 59 states have internal predecessors, (69), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-20 11:33:38,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 92 transitions. [2022-11-20 11:33:38,359 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 92 transitions. Word has length 25 [2022-11-20 11:33:38,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:33:38,361 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 92 transitions. [2022-11-20 11:33:38,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 11:33:38,363 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 92 transitions. [2022-11-20 11:33:38,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-20 11:33:38,369 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:33:38,370 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:33:38,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:33:38,371 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:33:38,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:38,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1832804488, now seen corresponding path program 1 times [2022-11-20 11:33:38,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:33:38,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050162024] [2022-11-20 11:33:38,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:33:38,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:33:38,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:38,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-20 11:33:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:38,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:33:38,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:33:38,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050162024] [2022-11-20 11:33:38,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050162024] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:33:38,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:33:38,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:33:38,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548396329] [2022-11-20 11:33:38,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:33:38,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:33:38,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:33:38,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:33:38,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:33:38,581 INFO L87 Difference]: Start difference. First operand 72 states and 92 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 11:33:38,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:33:38,621 INFO L93 Difference]: Finished difference Result 106 states and 134 transitions. [2022-11-20 11:33:38,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:33:38,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-11-20 11:33:38,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:33:38,631 INFO L225 Difference]: With dead ends: 106 [2022-11-20 11:33:38,631 INFO L226 Difference]: Without dead ends: 63 [2022-11-20 11:33:38,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:33:38,635 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 16 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 137 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 [2022-11-20 11:33:38,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 137 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:33:38,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-20 11:33:38,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-11-20 11:33:38,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 47 states have (on average 1.3191489361702127) internal successors, (62), 53 states have internal predecessors, (62), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-20 11:33:38,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 80 transitions. [2022-11-20 11:33:38,650 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 80 transitions. Word has length 26 [2022-11-20 11:33:38,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:33:38,650 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 80 transitions. [2022-11-20 11:33:38,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 11:33:38,651 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2022-11-20 11:33:38,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-20 11:33:38,652 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:33:38,652 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] [2022-11-20 11:33:38,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:33:38,653 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:33:38,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:38,654 INFO L85 PathProgramCache]: Analyzing trace with hash 930685850, now seen corresponding path program 1 times [2022-11-20 11:33:38,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:33:38,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886491520] [2022-11-20 11:33:38,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:33:38,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:33:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:38,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 11:33:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:38,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:33:38,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:33:38,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886491520] [2022-11-20 11:33:38,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886491520] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:33:38,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:33:38,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:33:38,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546166064] [2022-11-20 11:33:38,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:33:38,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:33:38,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:33:38,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:33:38,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:33:38,965 INFO L87 Difference]: Start difference. First operand 63 states and 80 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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) [2022-11-20 11:33:39,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:33:39,217 INFO L93 Difference]: Finished difference Result 218 states and 284 transitions. [2022-11-20 11:33:39,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:33:39,218 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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 30 [2022-11-20 11:33:39,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:33:39,220 INFO L225 Difference]: With dead ends: 218 [2022-11-20 11:33:39,220 INFO L226 Difference]: Without dead ends: 162 [2022-11-20 11:33:39,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:33:39,223 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 167 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:33:39,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 435 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:33:39,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-11-20 11:33:39,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 156. [2022-11-20 11:33:39,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 115 states have (on average 1.3565217391304347) internal successors, (156), 129 states have internal predecessors, (156), 23 states have call successors, (23), 17 states have call predecessors, (23), 17 states have return successors, (24), 17 states have call predecessors, (24), 23 states have call successors, (24) [2022-11-20 11:33:39,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 203 transitions. [2022-11-20 11:33:39,257 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 203 transitions. Word has length 30 [2022-11-20 11:33:39,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:33:39,258 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 203 transitions. [2022-11-20 11:33:39,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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) [2022-11-20 11:33:39,258 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 203 transitions. [2022-11-20 11:33:39,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-20 11:33:39,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:33:39,260 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] [2022-11-20 11:33:39,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:33:39,261 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:33:39,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:39,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1863079564, now seen corresponding path program 1 times [2022-11-20 11:33:39,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:33:39,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871795499] [2022-11-20 11:33:39,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:33:39,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:33:39,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:39,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 11:33:39,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:39,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-20 11:33:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:39,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:33:39,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:33:39,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871795499] [2022-11-20 11:33:39,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871795499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:33:39,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:33:39,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:33:39,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855678726] [2022-11-20 11:33:39,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:33:39,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:33:39,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:33:39,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:33:39,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:33:39,424 INFO L87 Difference]: Start difference. First operand 156 states and 203 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:33:39,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:33:39,568 INFO L93 Difference]: Finished difference Result 446 states and 600 transitions. [2022-11-20 11:33:39,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:33:39,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2022-11-20 11:33:39,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:33:39,573 INFO L225 Difference]: With dead ends: 446 [2022-11-20 11:33:39,581 INFO L226 Difference]: Without dead ends: 297 [2022-11-20 11:33:39,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:33:39,585 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 51 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:33:39,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 326 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:33:39,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-11-20 11:33:39,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 288. [2022-11-20 11:33:39,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 210 states have (on average 1.3333333333333333) internal successors, (280), 234 states have internal predecessors, (280), 46 states have call successors, (46), 34 states have call predecessors, (46), 31 states have return successors, (52), 31 states have call predecessors, (52), 46 states have call successors, (52) [2022-11-20 11:33:39,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 378 transitions. [2022-11-20 11:33:39,667 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 378 transitions. Word has length 35 [2022-11-20 11:33:39,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:33:39,668 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 378 transitions. [2022-11-20 11:33:39,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:33:39,668 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 378 transitions. [2022-11-20 11:33:39,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-20 11:33:39,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:33:39,671 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] [2022-11-20 11:33:39,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:33:39,672 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:33:39,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:39,673 INFO L85 PathProgramCache]: Analyzing trace with hash 315866663, now seen corresponding path program 1 times [2022-11-20 11:33:39,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:33:39,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390708998] [2022-11-20 11:33:39,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:33:39,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:33:39,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:39,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:33:39,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:39,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 11:33:39,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:39,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:33:39,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:33:39,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390708998] [2022-11-20 11:33:39,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390708998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:33:39,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:33:39,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:33:39,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127695839] [2022-11-20 11:33:39,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:33:39,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:33:39,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:33:39,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:33:39,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:33:39,867 INFO L87 Difference]: Start difference. First operand 288 states and 378 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:33:39,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:33:39,928 INFO L93 Difference]: Finished difference Result 512 states and 680 transitions. [2022-11-20 11:33:39,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:33:39,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 37 [2022-11-20 11:33:39,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:33:39,932 INFO L225 Difference]: With dead ends: 512 [2022-11-20 11:33:39,937 INFO L226 Difference]: Without dead ends: 231 [2022-11-20 11:33:39,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:33:39,941 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 44 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:33:39,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 56 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:33:39,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-11-20 11:33:40,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 227. [2022-11-20 11:33:40,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 173 states have (on average 1.2716763005780347) internal successors, (220), 183 states have internal predecessors, (220), 28 states have call successors, (28), 28 states have call predecessors, (28), 25 states have return successors, (30), 25 states have call predecessors, (30), 28 states have call successors, (30) [2022-11-20 11:33:40,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 278 transitions. [2022-11-20 11:33:40,023 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 278 transitions. Word has length 37 [2022-11-20 11:33:40,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:33:40,024 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 278 transitions. [2022-11-20 11:33:40,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:33:40,025 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 278 transitions. [2022-11-20 11:33:40,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-20 11:33:40,040 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:33:40,041 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] [2022-11-20 11:33:40,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:33:40,042 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:33:40,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:40,043 INFO L85 PathProgramCache]: Analyzing trace with hash -2031472666, now seen corresponding path program 1 times [2022-11-20 11:33:40,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:33:40,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482337912] [2022-11-20 11:33:40,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:33:40,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:33:40,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:33:40,083 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:33:40,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:33:40,189 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:33:40,189 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 11:33:40,190 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 11:33:40,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:33:40,197 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-20 11:33:40,211 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:33:40,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:33:40 BoogieIcfgContainer [2022-11-20 11:33:40,315 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:33:40,315 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:33:40,315 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:33:40,316 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:33:40,316 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:33:37" (3/4) ... [2022-11-20 11:33:40,319 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 11:33:40,453 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebda0541-67ca-4130-941e-8e7b244f6a1f/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:33:40,453 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:33:40,454 INFO L158 Benchmark]: Toolchain (without parser) took 3952.85ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 121.6MB in the beginning and 135.6MB in the end (delta: -14.0MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2022-11-20 11:33:40,454 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 104.9MB. Free memory is still 56.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:33:40,455 INFO L158 Benchmark]: CACSL2BoogieTranslator took 467.09ms. Allocated memory is still 165.7MB. Free memory was 120.9MB in the beginning and 103.4MB in the end (delta: 17.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 11:33:40,455 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.64ms. Allocated memory is still 165.7MB. Free memory was 103.4MB in the beginning and 101.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:33:40,456 INFO L158 Benchmark]: Boogie Preprocessor took 69.37ms. Allocated memory is still 165.7MB. Free memory was 101.3MB in the beginning and 99.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:33:40,456 INFO L158 Benchmark]: RCFGBuilder took 563.55ms. Allocated memory is still 165.7MB. Free memory was 99.8MB in the beginning and 84.5MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 11:33:40,457 INFO L158 Benchmark]: TraceAbstraction took 2636.45ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 83.8MB in the beginning and 138.7MB in the end (delta: -54.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:33:40,457 INFO L158 Benchmark]: Witness Printer took 137.94ms. Allocated memory is still 199.2MB. Free memory was 138.7MB in the beginning and 135.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:33:40,460 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 104.9MB. Free memory is still 56.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 467.09ms. Allocated memory is still 165.7MB. Free memory was 120.9MB in the beginning and 103.4MB in the end (delta: 17.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.64ms. Allocated memory is still 165.7MB. Free memory was 103.4MB in the beginning and 101.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.37ms. Allocated memory is still 165.7MB. Free memory was 101.3MB in the beginning and 99.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 563.55ms. Allocated memory is still 165.7MB. Free memory was 99.8MB in the beginning and 84.5MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2636.45ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 83.8MB in the beginning and 138.7MB in the end (delta: -54.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 137.94ms. Allocated memory is still 199.2MB. Free memory was 138.7MB in the beginning and 135.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 54]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L97] int cleanupTimeShifts = 4; [L367] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L606] int pumpRunning = 0; [L607] int systemActive = 1; [L821] int waterLevel = 1; [L822] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L175] int retValue_acc ; [L176] int tmp ; [L180] FCALL select_helpers() [L181] FCALL select_features() [L182] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L182] RET, EXPR valid_product() [L182] tmp = valid_product() [L184] COND TRUE \read(tmp) [L186] FCALL setup() [L187] CALL runTest() [L169] CALL test() [L755] int splverifierCounter ; [L756] int tmp ; [L757] int tmp___0 ; [L758] int tmp___1 ; [L759] int tmp___2 ; [L762] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L764] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L766] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L772] tmp = __VERIFIER_nondet_int() [L774] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L776] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L839] COND TRUE waterLevel < 2 [L840] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L776] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L782] tmp___0 = __VERIFIER_nondet_int() [L784] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L792] tmp___2 = __VERIFIER_nondet_int() [L794] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=-1, waterLevel=2] [L809] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L613] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L620] COND TRUE \read(systemActive) [L622] CALL processEnvironment() [L642] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L645] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L660] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L622] RET processEnvironment() [L628] CALL __utac_acc__Specification3_spec__1() [L568] int tmp ; [L569] int tmp___0 ; [L570] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L574] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L860] int retValue_acc ; [L863] retValue_acc = methaneLevelCritical [L864] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L574] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L574] tmp = isMethaneLevelCritical() [L576] COND FALSE !(\read(tmp)) [L580] CALL, EXPR getWaterLevel() [L892] int retValue_acc ; [L895] retValue_acc = waterLevel [L896] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L580] RET, EXPR getWaterLevel() [L580] tmp___0 = getWaterLevel() [L582] COND TRUE tmp___0 == 2 [L584] CALL, EXPR isPumpRunning() [L694] int retValue_acc ; [L697] retValue_acc = pumpRunning [L698] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L584] RET, EXPR isPumpRunning() [L584] tmp___1 = isPumpRunning() [L586] COND FALSE !(\read(tmp___1)) [L590] CALL __automaton_fail() [L54] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 282 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 278 mSDsluCounter, 1055 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 630 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 115 IncrementalHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 425 mSDtfsCounter, 115 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=288occurred in iteration=4, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 282 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-20 11:33:40,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebda0541-67ca-4130-941e-8e7b244f6a1f/bin/uautomizer-ug76WZFUDN/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE