./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', 'e70c7d407828df40e6ca35d99b4a3a65ee0ebef631e767452684b3cd94b17437'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e70c7d407828df40e6ca35d99b4a3a65ee0ebef631e767452684b3cd94b17437 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 23:44:05,863 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 23:44:05,934 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 23:44:05,939 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 23:44:05,939 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 23:44:05,964 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 23:44:05,967 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 23:44:05,968 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 23:44:05,968 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 23:44:05,969 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 23:44:05,969 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 23:44:05,969 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 23:44:05,970 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 23:44:05,970 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 23:44:05,970 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 23:44:05,970 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 23:44:05,971 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 23:44:05,971 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 23:44:05,971 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 23:44:05,971 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 23:44:05,971 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 23:44:05,971 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 23:44:05,971 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 23:44:05,971 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 23:44:05,971 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 23:44:05,971 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 23:44:05,971 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 23:44:05,971 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 23:44:05,971 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 23:44:05,971 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 23:44:05,971 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 23:44:05,971 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 23:44:05,971 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 23:44:05,972 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 23:44:05,972 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 23:44:05,972 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 23:44:05,972 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 23:44:05,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 23:44:05,972 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 23:44:05,972 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 23:44:05,972 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 23:44:05,973 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 23:44:05,973 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e70c7d407828df40e6ca35d99b4a3a65ee0ebef631e767452684b3cd94b17437 [2024-11-06 23:44:06,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 23:44:06,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 23:44:06,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 23:44:06,285 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 23:44:06,285 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 23:44:06,286 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c [2024-11-06 23:44:07,581 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 23:44:07,861 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 23:44:07,862 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c [2024-11-06 23:44:07,883 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5bc42638c/b9e529145b6d4486a9d14b827949b344/FLAGc1158b409 [2024-11-06 23:44:08,132 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5bc42638c/b9e529145b6d4486a9d14b827949b344 [2024-11-06 23:44:08,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 23:44:08,136 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 23:44:08,136 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 23:44:08,137 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 23:44:08,140 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 23:44:08,140 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:44:08" (1/1) ... [2024-11-06 23:44:08,141 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e10ccaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:44:08, skipping insertion in model container [2024-11-06 23:44:08,141 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:44:08" (1/1) ... [2024-11-06 23:44:08,176 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 23:44:08,407 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c[17256,17269] [2024-11-06 23:44:08,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 23:44:08,438 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 23:44:08,446 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [49] [2024-11-06 23:44:08,448 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] [2024-11-06 23:44:08,448 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [196] [2024-11-06 23:44:08,448 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [562] [2024-11-06 23:44:08,448 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [788] [2024-11-06 23:44:08,448 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [858] [2024-11-06 23:44:08,449 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [867] [2024-11-06 23:44:08,449 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [905] [2024-11-06 23:44:08,513 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c[17256,17269] [2024-11-06 23:44:08,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 23:44:08,547 INFO L204 MainTranslator]: Completed translation [2024-11-06 23:44:08,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:44:08 WrapperNode [2024-11-06 23:44:08,548 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 23:44:08,549 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 23:44:08,549 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 23:44:08,549 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 23:44:08,553 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:44:08" (1/1) ... [2024-11-06 23:44:08,564 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:44:08" (1/1) ... [2024-11-06 23:44:08,590 INFO L138 Inliner]: procedures = 57, calls = 102, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 216 [2024-11-06 23:44:08,591 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 23:44:08,592 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 23:44:08,592 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 23:44:08,592 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 23:44:08,600 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:44:08" (1/1) ... [2024-11-06 23:44:08,601 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:44:08" (1/1) ... [2024-11-06 23:44:08,607 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:44:08" (1/1) ... [2024-11-06 23:44:08,626 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-06 23:44:08,629 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:44:08" (1/1) ... [2024-11-06 23:44:08,629 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:44:08" (1/1) ... [2024-11-06 23:44:08,634 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:44:08" (1/1) ... [2024-11-06 23:44:08,644 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:44:08" (1/1) ... [2024-11-06 23:44:08,646 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:44:08" (1/1) ... [2024-11-06 23:44:08,646 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:44:08" (1/1) ... [2024-11-06 23:44:08,648 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 23:44:08,651 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 23:44:08,651 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 23:44:08,652 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 23:44:08,653 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:44:08" (1/1) ... [2024-11-06 23:44:08,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 23:44:08,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 23:44:08,683 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-06 23:44:08,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-06 23:44:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 23:44:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-06 23:44:08,708 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-06 23:44:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-06 23:44:08,709 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-06 23:44:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-06 23:44:08,709 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-06 23:44:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-06 23:44:08,709 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-06 23:44:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-06 23:44:08,709 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-06 23:44:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-06 23:44:08,709 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-06 23:44:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-06 23:44:08,710 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-06 23:44:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 23:44:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-06 23:44:08,710 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-06 23:44:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 23:44:08,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 23:44:08,776 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 23:44:08,778 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 23:44:09,101 INFO L? ?]: Removed 49 outVars from TransFormulas that were not future-live. [2024-11-06 23:44:09,105 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 23:44:09,114 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 23:44:09,115 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-06 23:44:09,115 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:44:09 BoogieIcfgContainer [2024-11-06 23:44:09,115 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 23:44:09,118 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 23:44:09,118 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 23:44:09,122 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 23:44:09,122 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:44:08" (1/3) ... [2024-11-06 23:44:09,123 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15229f12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:44:09, skipping insertion in model container [2024-11-06 23:44:09,123 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:44:08" (2/3) ... [2024-11-06 23:44:09,123 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15229f12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:44:09, skipping insertion in model container [2024-11-06 23:44:09,123 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:44:09" (3/3) ... [2024-11-06 23:44:09,124 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product52.cil.c [2024-11-06 23:44:09,138 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 23:44:09,139 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 23:44:09,187 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 23:44:09,196 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2c0f0b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 23:44:09,197 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 23:44:09,202 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 73 states have (on average 1.3835616438356164) internal successors, (101), 82 states have internal predecessors, (101), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-06 23:44:09,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-06 23:44:09,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:44:09,210 INFO L215 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] [2024-11-06 23:44:09,210 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:44:09,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:44:09,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1438567311, now seen corresponding path program 1 times [2024-11-06 23:44:09,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:44:09,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343200483] [2024-11-06 23:44:09,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:44:09,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:44:09,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:44:09,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-06 23:44:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:44:09,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:44:09,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:44:09,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343200483] [2024-11-06 23:44:09,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343200483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:44:09,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:44:09,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 23:44:09,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269856341] [2024-11-06 23:44:09,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:44:09,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-06 23:44:09,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:44:09,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-06 23:44:09,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 23:44:09,431 INFO L87 Difference]: Start difference. First operand has 96 states, 73 states have (on average 1.3835616438356164) internal successors, (101), 82 states have internal predecessors, (101), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) 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) [2024-11-06 23:44:09,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:44:09,467 INFO L93 Difference]: Finished difference Result 184 states and 249 transitions. [2024-11-06 23:44:09,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-06 23:44:09,469 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 [2024-11-06 23:44:09,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:44:09,477 INFO L225 Difference]: With dead ends: 184 [2024-11-06 23:44:09,478 INFO L226 Difference]: Without dead ends: 87 [2024-11-06 23:44:09,482 INFO L431 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 [2024-11-06 23:44:09,485 INFO L432 NwaCegarLoop]: 121 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, 121 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 [2024-11-06 23:44:09,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 23:44:09,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-06 23:44:09,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-06 23:44:09,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 66 states have (on average 1.3181818181818181) internal successors, (87), 74 states have internal predecessors, (87), 13 states have call successors, (13), 8 states have call predecessors, (13), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-06 23:44:09,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 112 transitions. [2024-11-06 23:44:09,529 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 112 transitions. Word has length 25 [2024-11-06 23:44:09,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:44:09,529 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 112 transitions. [2024-11-06 23:44:09,530 INFO L472 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) [2024-11-06 23:44:09,530 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 112 transitions. [2024-11-06 23:44:09,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-06 23:44:09,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:44:09,533 INFO L215 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] [2024-11-06 23:44:09,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 23:44:09,533 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:44:09,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:44:09,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1573930749, now seen corresponding path program 1 times [2024-11-06 23:44:09,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:44:09,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759754378] [2024-11-06 23:44:09,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:44:09,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:44:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:44:09,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-06 23:44:09,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:44:09,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:44:09,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:44:09,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759754378] [2024-11-06 23:44:09,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759754378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:44:09,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:44:09,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 23:44:09,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745111079] [2024-11-06 23:44:09,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:44:09,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 23:44:09,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:44:09,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 23:44:09,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 23:44:09,687 INFO L87 Difference]: Start difference. First operand 87 states and 112 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) [2024-11-06 23:44:09,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:44:09,702 INFO L93 Difference]: Finished difference Result 135 states and 173 transitions. [2024-11-06 23:44:09,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 23:44:09,703 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 [2024-11-06 23:44:09,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:44:09,704 INFO L225 Difference]: With dead ends: 135 [2024-11-06 23:44:09,704 INFO L226 Difference]: Without dead ends: 78 [2024-11-06 23:44:09,705 INFO L431 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 [2024-11-06 23:44:09,705 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 17 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 176 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 [2024-11-06 23:44:09,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 176 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 23:44:09,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-06 23:44:09,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-06 23:44:09,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 60 states have (on average 1.3333333333333333) internal successors, (80), 68 states have internal predecessors, (80), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 7 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-06 23:44:09,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions. [2024-11-06 23:44:09,722 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 100 transitions. Word has length 26 [2024-11-06 23:44:09,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:44:09,723 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 100 transitions. [2024-11-06 23:44:09,723 INFO L472 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) [2024-11-06 23:44:09,723 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 100 transitions. [2024-11-06 23:44:09,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-06 23:44:09,724 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:44:09,724 INFO L215 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] [2024-11-06 23:44:09,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-06 23:44:09,724 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:44:09,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:44:09,725 INFO L85 PathProgramCache]: Analyzing trace with hash -458466250, now seen corresponding path program 1 times [2024-11-06 23:44:09,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:44:09,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471435467] [2024-11-06 23:44:09,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:44:09,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:44:09,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:44:09,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-06 23:44:09,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:44:09,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:44:09,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:44:09,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471435467] [2024-11-06 23:44:09,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471435467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:44:09,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:44:09,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-06 23:44:09,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992892155] [2024-11-06 23:44:09,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:44:09,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-06 23:44:09,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:44:09,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-06 23:44:09,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 23:44:09,915 INFO L87 Difference]: Start difference. First operand 78 states and 100 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2024-11-06 23:44:09,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:44:09,987 INFO L93 Difference]: Finished difference Result 193 states and 251 transitions. [2024-11-06 23:44:09,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-06 23:44:09,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 31 [2024-11-06 23:44:09,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:44:09,990 INFO L225 Difference]: With dead ends: 193 [2024-11-06 23:44:09,991 INFO L226 Difference]: Without dead ends: 122 [2024-11-06 23:44:09,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:44:09,992 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 93 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 23:44:09,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 396 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 23:44:09,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-06 23:44:10,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 119. [2024-11-06 23:44:10,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 91 states have (on average 1.3516483516483517) internal successors, (123), 102 states have internal predecessors, (123), 15 states have call successors, (15), 12 states have call predecessors, (15), 12 states have return successors, (16), 11 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-06 23:44:10,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 154 transitions. [2024-11-06 23:44:10,010 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 154 transitions. Word has length 31 [2024-11-06 23:44:10,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:44:10,010 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 154 transitions. [2024-11-06 23:44:10,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2024-11-06 23:44:10,013 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 154 transitions. [2024-11-06 23:44:10,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-06 23:44:10,014 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:44:10,014 INFO L215 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] [2024-11-06 23:44:10,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-06 23:44:10,014 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:44:10,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:44:10,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1633159273, now seen corresponding path program 1 times [2024-11-06 23:44:10,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:44:10,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244064071] [2024-11-06 23:44:10,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:44:10,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:44:10,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:44:10,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-06 23:44:10,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:44:10,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:44:10,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:44:10,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244064071] [2024-11-06 23:44:10,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244064071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:44:10,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:44:10,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-06 23:44:10,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838393227] [2024-11-06 23:44:10,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:44:10,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-06 23:44:10,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:44:10,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-06 23:44:10,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 23:44:10,183 INFO L87 Difference]: Start difference. First operand 119 states and 154 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2024-11-06 23:44:10,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:44:10,275 INFO L93 Difference]: Finished difference Result 331 states and 447 transitions. [2024-11-06 23:44:10,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-06 23:44:10,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 34 [2024-11-06 23:44:10,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:44:10,278 INFO L225 Difference]: With dead ends: 331 [2024-11-06 23:44:10,278 INFO L226 Difference]: Without dead ends: 219 [2024-11-06 23:44:10,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:44:10,280 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 62 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 23:44:10,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 361 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 23:44:10,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-06 23:44:10,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2024-11-06 23:44:10,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 166 states have (on average 1.3313253012048192) internal successors, (221), 185 states have internal predecessors, (221), 30 states have call successors, (30), 24 states have call predecessors, (30), 22 states have return successors, (35), 20 states have call predecessors, (35), 30 states have call successors, (35) [2024-11-06 23:44:10,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 286 transitions. [2024-11-06 23:44:10,310 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 286 transitions. Word has length 34 [2024-11-06 23:44:10,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:44:10,310 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 286 transitions. [2024-11-06 23:44:10,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2024-11-06 23:44:10,310 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 286 transitions. [2024-11-06 23:44:10,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-06 23:44:10,312 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:44:10,312 INFO L215 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] [2024-11-06 23:44:10,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-06 23:44:10,313 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:44:10,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:44:10,317 INFO L85 PathProgramCache]: Analyzing trace with hash -848162660, now seen corresponding path program 1 times [2024-11-06 23:44:10,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:44:10,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599927328] [2024-11-06 23:44:10,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:44:10,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:44:10,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:44:10,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-06 23:44:10,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:44:10,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:44:10,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:44:10,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599927328] [2024-11-06 23:44:10,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599927328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:44:10,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:44:10,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 23:44:10,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976297184] [2024-11-06 23:44:10,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:44:10,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 23:44:10,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:44:10,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 23:44:10,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 23:44:10,402 INFO L87 Difference]: Start difference. First operand 219 states and 286 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-11-06 23:44:10,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:44:10,484 INFO L93 Difference]: Finished difference Result 492 states and 659 transitions. [2024-11-06 23:44:10,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 23:44:10,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 36 [2024-11-06 23:44:10,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:44:10,487 INFO L225 Difference]: With dead ends: 492 [2024-11-06 23:44:10,487 INFO L226 Difference]: Without dead ends: 280 [2024-11-06 23:44:10,491 INFO L431 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 [2024-11-06 23:44:10,492 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 59 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 23:44:10,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 164 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 23:44:10,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-11-06 23:44:10,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 276. [2024-11-06 23:44:10,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 212 states have (on average 1.2877358490566038) internal successors, (273), 226 states have internal predecessors, (273), 33 states have call successors, (33), 32 states have call predecessors, (33), 30 states have return successors, (46), 30 states have call predecessors, (46), 33 states have call successors, (46) [2024-11-06 23:44:10,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 352 transitions. [2024-11-06 23:44:10,522 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 352 transitions. Word has length 36 [2024-11-06 23:44:10,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:44:10,522 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 352 transitions. [2024-11-06 23:44:10,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-11-06 23:44:10,523 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 352 transitions. [2024-11-06 23:44:10,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-06 23:44:10,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:44:10,524 INFO L215 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] [2024-11-06 23:44:10,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-06 23:44:10,524 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:44:10,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:44:10,524 INFO L85 PathProgramCache]: Analyzing trace with hash 2083593341, now seen corresponding path program 1 times [2024-11-06 23:44:10,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:44:10,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065794955] [2024-11-06 23:44:10,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:44:10,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:44:10,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-06 23:44:10,542 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-06 23:44:10,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-06 23:44:10,579 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-06 23:44:10,580 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-06 23:44:10,581 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-06 23:44:10,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-06 23:44:10,585 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-06 23:44:10,622 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-06 23:44:10,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:44:10 BoogieIcfgContainer [2024-11-06 23:44:10,630 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-06 23:44:10,631 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-06 23:44:10,631 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-06 23:44:10,631 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-06 23:44:10,633 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:44:09" (3/4) ... [2024-11-06 23:44:10,633 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-06 23:44:10,690 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-06 23:44:10,691 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-06 23:44:10,691 INFO L158 Benchmark]: Toolchain (without parser) took 2555.93ms. Allocated memory is still 100.7MB. Free memory was 75.9MB in the beginning and 53.4MB in the end (delta: 22.4MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2024-11-06 23:44:10,692 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 23:44:10,692 INFO L158 Benchmark]: CACSL2BoogieTranslator took 411.72ms. Allocated memory is still 100.7MB. Free memory was 75.8MB in the beginning and 56.9MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-06 23:44:10,692 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.81ms. Allocated memory is still 100.7MB. Free memory was 56.8MB in the beginning and 55.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 23:44:10,692 INFO L158 Benchmark]: Boogie Preprocessor took 58.21ms. Allocated memory is still 100.7MB. Free memory was 55.0MB in the beginning and 53.2MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-06 23:44:10,693 INFO L158 Benchmark]: RCFGBuilder took 464.64ms. Allocated memory is still 100.7MB. Free memory was 53.0MB in the beginning and 74.5MB in the end (delta: -21.5MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2024-11-06 23:44:10,693 INFO L158 Benchmark]: TraceAbstraction took 1511.82ms. Allocated memory is still 100.7MB. Free memory was 73.6MB in the beginning and 56.8MB in the end (delta: 16.8MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2024-11-06 23:44:10,693 INFO L158 Benchmark]: Witness Printer took 60.15ms. Allocated memory is still 100.7MB. Free memory was 56.8MB in the beginning and 53.4MB in the end (delta: 3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-06 23:44:10,695 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 411.72ms. Allocated memory is still 100.7MB. Free memory was 75.8MB in the beginning and 56.9MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.81ms. Allocated memory is still 100.7MB. Free memory was 56.8MB in the beginning and 55.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 58.21ms. Allocated memory is still 100.7MB. Free memory was 55.0MB in the beginning and 53.2MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 464.64ms. Allocated memory is still 100.7MB. Free memory was 53.0MB in the beginning and 74.5MB in the end (delta: -21.5MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1511.82ms. Allocated memory is still 100.7MB. Free memory was 73.6MB in the beginning and 56.8MB in the end (delta: 16.8MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. * Witness Printer took 60.15ms. Allocated memory is still 100.7MB. Free memory was 56.8MB in the beginning and 53.4MB in the end (delta: 3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] - GenericResultAtLocation [Line: 196]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [196] - GenericResultAtLocation [Line: 562]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [562] - GenericResultAtLocation [Line: 788]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [788] - GenericResultAtLocation [Line: 858]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [858] - GenericResultAtLocation [Line: 867]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [867] - GenericResultAtLocation [Line: 905]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [905] * 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: 863]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L94] int waterLevel = 1; [L95] int methaneLevelCritical = 0; [L366] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L569] int pumpRunning = 0; [L570] int systemActive = 1; [L906] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L979] int retValue_acc ; [L980] int tmp ; [L984] FCALL select_helpers() [L985] FCALL select_features() [L986] CALL, EXPR valid_product() [L897] int retValue_acc ; [L900] retValue_acc = 1 [L901] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L986] RET, EXPR valid_product() [L986] tmp = valid_product() [L988] COND TRUE \read(tmp) [L990] FCALL setup() [L991] CALL runTest() [L973] CALL test() [L791] int splverifierCounter ; [L792] int tmp ; [L793] int tmp___0 ; [L794] int tmp___1 ; [L795] int tmp___2 ; [L798] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L800] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L802] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L808] tmp = __VERIFIER_nondet_int() [L810] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L812] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L112] COND TRUE waterLevel < 2 [L113] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L812] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L818] tmp___0 = __VERIFIER_nondet_int() [L820] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L828] tmp___2 = __VERIFIER_nondet_int() [L830] COND FALSE !(\read(tmp___2)) [L836] tmp___1 = __VERIFIER_nondet_int() [L838] COND TRUE \read(tmp___1) [L840] CALL stopSystem() [L769] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L776] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L840] RET stopSystem() [L847] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L576] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L583] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L591] CALL __utac_acc__Specification3_spec__1() [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L61] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L133] int retValue_acc ; [L136] retValue_acc = methaneLevelCritical [L137] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L61] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L67] CALL, EXPR getWaterLevel() [L165] int retValue_acc ; [L168] retValue_acc = waterLevel [L169] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L67] RET, EXPR getWaterLevel() [L67] tmp___0 = getWaterLevel() [L69] COND TRUE tmp___0 == 2 [L71] CALL, EXPR isPumpRunning() [L683] int retValue_acc ; [L686] retValue_acc = pumpRunning [L687] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L71] RET, EXPR isPumpRunning() [L71] tmp___1 = isPumpRunning() [L73] COND FALSE !(\read(tmp___1)) [L77] CALL __automaton_fail() [L863] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 96 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 235 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 231 mSDsluCounter, 1218 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 691 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 55 IncrementalHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 527 mSDtfsCounter, 55 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=276occurred in iteration=5, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 261 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! [2024-11-06 23:44:10,719 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE