./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y --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 a5340faf3ec1f0e0bc66d280fc3b45c510e704ff1d108d74101ee8606e665888 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:45:50,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:45:50,100 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:45:50,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:45:50,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:45:50,143 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:45:50,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:45:50,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:45:50,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:45:50,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:45:50,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:45:50,157 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:45:50,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:45:50,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:45:50,162 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:45:50,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:45:50,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:45:50,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:45:50,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:45:50,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:45:50,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:45:50,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:45:50,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:45:50,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:45:50,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:45:50,189 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:45:50,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:45:50,191 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:45:50,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:45:50,194 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:45:50,194 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:45:50,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:45:50,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:45:50,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:45:50,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:45:50,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:45:50,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:45:50,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:45:50,202 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:45:50,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:45:50,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:45:50,206 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-13 17:45:50,236 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:45:50,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:45:50,237 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:45:50,238 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:45:50,239 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:45:50,239 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:45:50,240 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:45:50,240 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:45:50,241 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:45:50,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:45:50,242 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 17:45:50,242 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:45:50,242 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 17:45:50,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:45:50,243 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 17:45:50,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:45:50,243 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 17:45:50,244 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 17:45:50,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:45:50,244 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:45:50,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 17:45:50,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:45:50,245 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:45:50,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:45:50,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:45:50,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:45:50,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:45:50,247 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 17:45:50,247 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:45:50,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 17:45:50,248 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 17:45:50,248 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 17:45:50,248 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 17:45:50,249 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:45:50,249 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_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5340faf3ec1f0e0bc66d280fc3b45c510e704ff1d108d74101ee8606e665888 [2021-11-13 17:45:50,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:45:50,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:45:50,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:45:50,643 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:45:50,644 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:45:50,646 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c [2021-11-13 17:45:50,726 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/data/b407600ec/85efac93e4254341ac6c6585a991987a/FLAGc2a2e795f [2021-11-13 17:45:51,436 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:45:51,437 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c [2021-11-13 17:45:51,479 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/data/b407600ec/85efac93e4254341ac6c6585a991987a/FLAGc2a2e795f [2021-11-13 17:45:51,650 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/data/b407600ec/85efac93e4254341ac6c6585a991987a [2021-11-13 17:45:51,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:45:51,657 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:45:51,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:45:51,660 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:45:51,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:45:51,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:45:51" (1/1) ... [2021-11-13 17:45:51,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c25dab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:45:51, skipping insertion in model container [2021-11-13 17:45:51,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:45:51" (1/1) ... [2021-11-13 17:45:51,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:45:51,771 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:45:52,029 WARN L228 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_c336db60-a445-4bda-bdcf-37b9111676e4/sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c[1605,1618] [2021-11-13 17:45:52,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:45:52,286 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:45:52,303 WARN L228 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_c336db60-a445-4bda-bdcf-37b9111676e4/sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c[1605,1618] [2021-11-13 17:45:52,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:45:52,443 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:45:52,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:45:52 WrapperNode [2021-11-13 17:45:52,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:45:52,445 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:45:52,445 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:45:52,445 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:45:52,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:45:52" (1/1) ... [2021-11-13 17:45:52,478 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:45:52" (1/1) ... [2021-11-13 17:45:52,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:45:52,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:45:52,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:45:52,548 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:45:52,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:45:52" (1/1) ... [2021-11-13 17:45:52,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:45:52" (1/1) ... [2021-11-13 17:45:52,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:45:52" (1/1) ... [2021-11-13 17:45:52,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:45:52" (1/1) ... [2021-11-13 17:45:52,588 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:45:52" (1/1) ... [2021-11-13 17:45:52,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:45:52" (1/1) ... [2021-11-13 17:45:52,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:45:52" (1/1) ... [2021-11-13 17:45:52,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:45:52,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:45:52,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:45:52,637 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:45:52,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:45:52" (1/1) ... [2021-11-13 17:45:52,647 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:45:52,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:45:52,675 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 17:45:52,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 17:45:52,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:45:52,730 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-11-13 17:45:52,731 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-11-13 17:45:52,731 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-13 17:45:52,731 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-13 17:45:52,731 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-13 17:45:52,731 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-13 17:45:52,732 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-11-13 17:45:52,732 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-11-13 17:45:52,732 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-13 17:45:52,732 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-13 17:45:52,733 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-11-13 17:45:52,733 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-11-13 17:45:52,733 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-11-13 17:45:52,733 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-11-13 17:45:52,733 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-11-13 17:45:52,734 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-11-13 17:45:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 17:45:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-13 17:45:52,734 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-13 17:45:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:45:52,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:45:53,832 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:45:53,833 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-13 17:45:53,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:45:53 BoogieIcfgContainer [2021-11-13 17:45:53,843 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:45:53,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 17:45:53,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 17:45:53,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 17:45:53,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:45:51" (1/3) ... [2021-11-13 17:45:53,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e42e2c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:45:53, skipping insertion in model container [2021-11-13 17:45:53,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:45:52" (2/3) ... [2021-11-13 17:45:53,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e42e2c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:45:53, skipping insertion in model container [2021-11-13 17:45:53,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:45:53" (3/3) ... [2021-11-13 17:45:53,865 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product61.cil.c [2021-11-13 17:45:53,876 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 17:45:53,876 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 17:45:53,942 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 17:45:53,950 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 17:45:53,951 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 17:45:53,975 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 76 states have (on average 1.381578947368421) internal successors, (105), 86 states have internal predecessors, (105), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-13 17:45:53,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 17:45:53,984 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:45:53,985 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:45:53,985 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:45:53,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:45:53,992 INFO L85 PathProgramCache]: Analyzing trace with hash 332135154, now seen corresponding path program 1 times [2021-11-13 17:45:54,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:45:54,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471388713] [2021-11-13 17:45:54,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:45:54,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:45:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:54,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:45:54,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:45:54,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471388713] [2021-11-13 17:45:54,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471388713] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:45:54,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:45:54,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 17:45:54,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477434545] [2021-11-13 17:45:54,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:45:54,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 17:45:54,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:45:54,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 17:45:54,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 17:45:54,358 INFO L87 Difference]: Start difference. First operand has 103 states, 76 states have (on average 1.381578947368421) internal successors, (105), 86 states have internal predecessors, (105), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:45:54,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:45:54,403 INFO L93 Difference]: Finished difference Result 198 states and 269 transitions. [2021-11-13 17:45:54,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:45:54,406 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-13 17:45:54,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:45:54,419 INFO L225 Difference]: With dead ends: 198 [2021-11-13 17:45:54,419 INFO L226 Difference]: Without dead ends: 94 [2021-11-13 17:45:54,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 17:45:54,429 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.72ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 17:45:54,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 2.72ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 17:45:54,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-11-13 17:45:54,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2021-11-13 17:45:54,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 69 states have (on average 1.318840579710145) internal successors, (91), 78 states have internal predecessors, (91), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-13 17:45:54,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 122 transitions. [2021-11-13 17:45:54,492 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 122 transitions. Word has length 19 [2021-11-13 17:45:54,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:45:54,493 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 122 transitions. [2021-11-13 17:45:54,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:45:54,493 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 122 transitions. [2021-11-13 17:45:54,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-13 17:45:54,496 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:45:54,496 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:45:54,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 17:45:54,516 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:45:54,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:45:54,522 INFO L85 PathProgramCache]: Analyzing trace with hash 2057254746, now seen corresponding path program 1 times [2021-11-13 17:45:54,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:45:54,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800681570] [2021-11-13 17:45:54,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:45:54,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:45:54,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:54,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:45:54,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:45:54,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800681570] [2021-11-13 17:45:54,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800681570] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:45:54,780 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:45:54,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:45:54,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583687946] [2021-11-13 17:45:54,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:45:54,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:45:54,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:45:54,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:45:54,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:45:54,783 INFO L87 Difference]: Start difference. First operand 94 states and 122 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:45:54,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:45:54,809 INFO L93 Difference]: Finished difference Result 154 states and 200 transitions. [2021-11-13 17:45:54,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:45:54,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-13 17:45:54,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:45:54,812 INFO L225 Difference]: With dead ends: 154 [2021-11-13 17:45:54,813 INFO L226 Difference]: Without dead ends: 85 [2021-11-13 17:45:54,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:45:54,816 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 12 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.58ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.94ms IncrementalHoareTripleChecker+Time [2021-11-13 17:45:54,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 202 Invalid, 1 Unknown, 0 Unchecked, 3.58ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.94ms Time] [2021-11-13 17:45:54,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-11-13 17:45:54,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-11-13 17:45:54,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 63 states have (on average 1.3333333333333333) internal successors, (84), 72 states have internal predecessors, (84), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-13 17:45:54,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 110 transitions. [2021-11-13 17:45:54,836 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 110 transitions. Word has length 20 [2021-11-13 17:45:54,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:45:54,837 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 110 transitions. [2021-11-13 17:45:54,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:45:54,838 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 110 transitions. [2021-11-13 17:45:54,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-13 17:45:54,839 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:45:54,839 INFO L514 BasicCegarLoop]: 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] [2021-11-13 17:45:54,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 17:45:54,840 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:45:54,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:45:54,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1387625524, now seen corresponding path program 1 times [2021-11-13 17:45:54,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:45:54,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429451114] [2021-11-13 17:45:54,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:45:54,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:45:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:55,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:45:55,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:45:55,002 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429451114] [2021-11-13 17:45:55,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429451114] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:45:55,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:45:55,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 17:45:55,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391493139] [2021-11-13 17:45:55,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:45:55,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:45:55,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:45:55,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:45:55,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:45:55,009 INFO L87 Difference]: Start difference. First operand 85 states and 110 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:45:55,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:45:55,289 INFO L93 Difference]: Finished difference Result 163 states and 214 transitions. [2021-11-13 17:45:55,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:45:55,290 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-13 17:45:55,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:45:55,292 INFO L225 Difference]: With dead ends: 163 [2021-11-13 17:45:55,293 INFO L226 Difference]: Without dead ends: 85 [2021-11-13 17:45:55,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:45:55,296 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 136 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 197.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.71ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 226.72ms IncrementalHoareTripleChecker+Time [2021-11-13 17:45:55,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 231 Invalid, 67 Unknown, 0 Unchecked, 4.71ms Time], IncrementalHoareTripleChecker [10 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 226.72ms Time] [2021-11-13 17:45:55,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-11-13 17:45:55,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-11-13 17:45:55,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 63 states have (on average 1.3174603174603174) internal successors, (83), 72 states have internal predecessors, (83), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-13 17:45:55,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 109 transitions. [2021-11-13 17:45:55,311 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 109 transitions. Word has length 24 [2021-11-13 17:45:55,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:45:55,312 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 109 transitions. [2021-11-13 17:45:55,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:45:55,312 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 109 transitions. [2021-11-13 17:45:55,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-13 17:45:55,315 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:45:55,315 INFO L514 BasicCegarLoop]: 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] [2021-11-13 17:45:55,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 17:45:55,316 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:45:55,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:45:55,316 INFO L85 PathProgramCache]: Analyzing trace with hash 610675451, now seen corresponding path program 1 times [2021-11-13 17:45:55,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:45:55,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533296968] [2021-11-13 17:45:55,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:45:55,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:45:55,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:55,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-13 17:45:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:55,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-13 17:45:55,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:55,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:45:55,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:45:55,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533296968] [2021-11-13 17:45:55,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533296968] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:45:55,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:45:55,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:45:55,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346129555] [2021-11-13 17:45:55,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:45:55,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:45:55,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:45:55,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:45:55,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:45:55,437 INFO L87 Difference]: Start difference. First operand 85 states and 109 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 17:45:55,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:45:55,724 INFO L93 Difference]: Finished difference Result 238 states and 306 transitions. [2021-11-13 17:45:55,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:45:55,725 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 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 [2021-11-13 17:45:55,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:45:55,735 INFO L225 Difference]: With dead ends: 238 [2021-11-13 17:45:55,735 INFO L226 Difference]: Without dead ends: 160 [2021-11-13 17:45:55,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:45:55,747 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 153 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 198.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.92ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 245.40ms IncrementalHoareTripleChecker+Time [2021-11-13 17:45:55,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 200 Invalid, 113 Unknown, 0 Unchecked, 4.92ms Time], IncrementalHoareTripleChecker [41 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 245.40ms Time] [2021-11-13 17:45:55,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-11-13 17:45:55,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 154. [2021-11-13 17:45:55,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 117 states have (on average 1.2735042735042734) internal successors, (149), 126 states have internal predecessors, (149), 16 states have call successors, (16), 15 states have call predecessors, (16), 20 states have return successors, (27), 18 states have call predecessors, (27), 16 states have call successors, (27) [2021-11-13 17:45:55,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 192 transitions. [2021-11-13 17:45:55,796 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 192 transitions. Word has length 37 [2021-11-13 17:45:55,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:45:55,797 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 192 transitions. [2021-11-13 17:45:55,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 17:45:55,797 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 192 transitions. [2021-11-13 17:45:55,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-13 17:45:55,799 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:45:55,799 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:45:55,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 17:45:55,800 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:45:55,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:45:55,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1599675381, now seen corresponding path program 1 times [2021-11-13 17:45:55,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:45:55,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750201280] [2021-11-13 17:45:55,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:45:55,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:45:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:55,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-13 17:45:55,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:55,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:45:55,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:55,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 17:45:55,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:55,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:45:55,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:45:55,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750201280] [2021-11-13 17:45:55,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750201280] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:45:55,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:45:55,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:45:55,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360388367] [2021-11-13 17:45:55,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:45:55,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:45:55,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:45:55,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:45:55,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:45:56,000 INFO L87 Difference]: Start difference. First operand 154 states and 192 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-13 17:45:56,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:45:56,442 INFO L93 Difference]: Finished difference Result 387 states and 502 transitions. [2021-11-13 17:45:56,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 17:45:56,452 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2021-11-13 17:45:56,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:45:56,461 INFO L225 Difference]: With dead ends: 387 [2021-11-13 17:45:56,463 INFO L226 Difference]: Without dead ends: 240 [2021-11-13 17:45:56,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-13 17:45:56,467 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 155 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 250.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.89ms SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 325.76ms IncrementalHoareTripleChecker+Time [2021-11-13 17:45:56,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 354 Invalid, 190 Unknown, 0 Unchecked, 7.89ms Time], IncrementalHoareTripleChecker [39 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 325.76ms Time] [2021-11-13 17:45:56,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-11-13 17:45:56,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 238. [2021-11-13 17:45:56,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 181 states have (on average 1.2541436464088398) internal successors, (227), 193 states have internal predecessors, (227), 26 states have call successors, (26), 25 states have call predecessors, (26), 30 states have return successors, (45), 28 states have call predecessors, (45), 26 states have call successors, (45) [2021-11-13 17:45:56,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 298 transitions. [2021-11-13 17:45:56,544 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 298 transitions. Word has length 45 [2021-11-13 17:45:56,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:45:56,545 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 298 transitions. [2021-11-13 17:45:56,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-13 17:45:56,545 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 298 transitions. [2021-11-13 17:45:56,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-13 17:45:56,548 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:45:56,548 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:45:56,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 17:45:56,549 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:45:56,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:45:56,549 INFO L85 PathProgramCache]: Analyzing trace with hash 414561125, now seen corresponding path program 1 times [2021-11-13 17:45:56,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:45:56,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078001481] [2021-11-13 17:45:56,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:45:56,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:45:56,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:56,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 17:45:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:56,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-13 17:45:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:56,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:45:56,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:56,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 17:45:56,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:56,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:45:56,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:45:56,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078001481] [2021-11-13 17:45:56,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078001481] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:45:56,729 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:45:56,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 17:45:56,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610020732] [2021-11-13 17:45:56,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:45:56,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 17:45:56,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:45:56,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 17:45:56,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:45:56,732 INFO L87 Difference]: Start difference. First operand 238 states and 298 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 17:45:57,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:45:57,416 INFO L93 Difference]: Finished difference Result 319 states and 399 transitions. [2021-11-13 17:45:57,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-13 17:45:57,417 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 49 [2021-11-13 17:45:57,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:45:57,421 INFO L225 Difference]: With dead ends: 319 [2021-11-13 17:45:57,421 INFO L226 Difference]: Without dead ends: 317 [2021-11-13 17:45:57,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2021-11-13 17:45:57,423 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 232 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 403.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.59ms SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 493.42ms IncrementalHoareTripleChecker+Time [2021-11-13 17:45:57,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 418 Invalid, 418 Unknown, 0 Unchecked, 11.59ms Time], IncrementalHoareTripleChecker [80 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 493.42ms Time] [2021-11-13 17:45:57,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2021-11-13 17:45:57,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 269. [2021-11-13 17:45:57,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 204 states have (on average 1.2401960784313726) internal successors, (253), 221 states have internal predecessors, (253), 30 states have call successors, (30), 25 states have call predecessors, (30), 34 states have return successors, (55), 31 states have call predecessors, (55), 30 states have call successors, (55) [2021-11-13 17:45:57,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 338 transitions. [2021-11-13 17:45:57,464 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 338 transitions. Word has length 49 [2021-11-13 17:45:57,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:45:57,465 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 338 transitions. [2021-11-13 17:45:57,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 17:45:57,465 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 338 transitions. [2021-11-13 17:45:57,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-13 17:45:57,467 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:45:57,468 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:45:57,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 17:45:57,468 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:45:57,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:45:57,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1510129521, now seen corresponding path program 1 times [2021-11-13 17:45:57,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:45:57,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645493526] [2021-11-13 17:45:57,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:45:57,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:45:57,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:57,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 17:45:57,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:57,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-13 17:45:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:57,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:45:57,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:57,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 17:45:57,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:57,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:45:57,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:45:57,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645493526] [2021-11-13 17:45:57,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645493526] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:45:57,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:45:57,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 17:45:57,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779514647] [2021-11-13 17:45:57,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:45:57,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 17:45:57,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:45:57,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 17:45:57,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:45:57,598 INFO L87 Difference]: Start difference. First operand 269 states and 338 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 17:45:58,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:45:58,131 INFO L93 Difference]: Finished difference Result 571 states and 745 transitions. [2021-11-13 17:45:58,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 17:45:58,132 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2021-11-13 17:45:58,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:45:58,136 INFO L225 Difference]: With dead ends: 571 [2021-11-13 17:45:58,136 INFO L226 Difference]: Without dead ends: 309 [2021-11-13 17:45:58,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-13 17:45:58,139 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 158 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 341.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.62ms SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 425.50ms IncrementalHoareTripleChecker+Time [2021-11-13 17:45:58,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 354 Invalid, 331 Unknown, 0 Unchecked, 6.62ms Time], IncrementalHoareTripleChecker [61 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 425.50ms Time] [2021-11-13 17:45:58,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-11-13 17:45:58,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 275. [2021-11-13 17:45:58,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 210 states have (on average 1.2333333333333334) internal successors, (259), 227 states have internal predecessors, (259), 30 states have call successors, (30), 25 states have call predecessors, (30), 34 states have return successors, (55), 31 states have call predecessors, (55), 30 states have call successors, (55) [2021-11-13 17:45:58,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 344 transitions. [2021-11-13 17:45:58,173 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 344 transitions. Word has length 55 [2021-11-13 17:45:58,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:45:58,173 INFO L470 AbstractCegarLoop]: Abstraction has 275 states and 344 transitions. [2021-11-13 17:45:58,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 17:45:58,174 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 344 transitions. [2021-11-13 17:45:58,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-13 17:45:58,176 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:45:58,176 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:45:58,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 17:45:58,176 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:45:58,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:45:58,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1644143027, now seen corresponding path program 1 times [2021-11-13 17:45:58,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:45:58,177 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51680754] [2021-11-13 17:45:58,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:45:58,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:45:58,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:58,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 17:45:58,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:58,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-13 17:45:58,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:58,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:45:58,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:58,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 17:45:58,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:58,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:45:58,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:45:58,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51680754] [2021-11-13 17:45:58,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51680754] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:45:58,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:45:58,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:45:58,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879522512] [2021-11-13 17:45:58,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:45:58,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 17:45:58,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:45:58,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 17:45:58,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:45:58,357 INFO L87 Difference]: Start difference. First operand 275 states and 344 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 17:45:58,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:45:58,990 INFO L93 Difference]: Finished difference Result 533 states and 685 transitions. [2021-11-13 17:45:58,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 17:45:58,991 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2021-11-13 17:45:58,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:45:58,994 INFO L225 Difference]: With dead ends: 533 [2021-11-13 17:45:58,994 INFO L226 Difference]: Without dead ends: 265 [2021-11-13 17:45:58,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-11-13 17:45:58,997 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 200 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 452.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.58ms SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 544.35ms IncrementalHoareTripleChecker+Time [2021-11-13 17:45:58,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 330 Invalid, 417 Unknown, 0 Unchecked, 8.58ms Time], IncrementalHoareTripleChecker [72 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 544.35ms Time] [2021-11-13 17:45:58,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2021-11-13 17:45:59,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 214. [2021-11-13 17:45:59,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 162 states have (on average 1.228395061728395) internal successors, (199), 175 states have internal predecessors, (199), 25 states have call successors, (25), 21 states have call predecessors, (25), 26 states have return successors, (41), 24 states have call predecessors, (41), 25 states have call successors, (41) [2021-11-13 17:45:59,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 265 transitions. [2021-11-13 17:45:59,021 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 265 transitions. Word has length 55 [2021-11-13 17:45:59,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:45:59,022 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 265 transitions. [2021-11-13 17:45:59,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 17:45:59,023 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 265 transitions. [2021-11-13 17:45:59,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-13 17:45:59,024 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:45:59,024 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:45:59,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 17:45:59,025 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:45:59,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:45:59,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1582103413, now seen corresponding path program 1 times [2021-11-13 17:45:59,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:45:59,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441356106] [2021-11-13 17:45:59,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:45:59,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:45:59,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:59,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 17:45:59,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:59,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-13 17:45:59,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:59,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:45:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:59,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 17:45:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:59,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:45:59,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:45:59,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441356106] [2021-11-13 17:45:59,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441356106] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:45:59,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:45:59,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 17:45:59,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955032069] [2021-11-13 17:45:59,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:45:59,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 17:45:59,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:45:59,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 17:45:59,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:45:59,198 INFO L87 Difference]: Start difference. First operand 214 states and 265 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 17:46:00,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:46:00,012 INFO L93 Difference]: Finished difference Result 481 states and 634 transitions. [2021-11-13 17:46:00,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-13 17:46:00,012 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2021-11-13 17:46:00,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:46:00,015 INFO L225 Difference]: With dead ends: 481 [2021-11-13 17:46:00,015 INFO L226 Difference]: Without dead ends: 319 [2021-11-13 17:46:00,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-11-13 17:46:00,016 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 239 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 553.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.96ms SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 646.81ms IncrementalHoareTripleChecker+Time [2021-11-13 17:46:00,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 455 Invalid, 456 Unknown, 0 Unchecked, 7.96ms Time], IncrementalHoareTripleChecker [81 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 646.81ms Time] [2021-11-13 17:46:00,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-11-13 17:46:00,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 308. [2021-11-13 17:46:00,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 235 states have (on average 1.2085106382978723) internal successors, (284), 251 states have internal predecessors, (284), 35 states have call successors, (35), 30 states have call predecessors, (35), 37 states have return successors, (72), 37 states have call predecessors, (72), 35 states have call successors, (72) [2021-11-13 17:46:00,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 391 transitions. [2021-11-13 17:46:00,054 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 391 transitions. Word has length 55 [2021-11-13 17:46:00,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:46:00,054 INFO L470 AbstractCegarLoop]: Abstraction has 308 states and 391 transitions. [2021-11-13 17:46:00,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 17:46:00,055 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 391 transitions. [2021-11-13 17:46:00,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-13 17:46:00,058 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:46:00,058 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:46:00,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 17:46:00,059 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:46:00,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:46:00,059 INFO L85 PathProgramCache]: Analyzing trace with hash -493181504, now seen corresponding path program 1 times [2021-11-13 17:46:00,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:46:00,059 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673595321] [2021-11-13 17:46:00,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:46:00,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:46:00,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:00,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 17:46:00,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:00,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-13 17:46:00,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:00,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 17:46:00,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:00,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:46:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:00,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 17:46:00,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:00,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 17:46:00,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:00,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-13 17:46:00,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:00,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-13 17:46:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:00,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:46:00,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:00,316 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-13 17:46:00,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:46:00,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673595321] [2021-11-13 17:46:00,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673595321] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 17:46:00,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760461625] [2021-11-13 17:46:00,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:46:00,317 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:46:00,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:46:00,323 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:46:00,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 17:46:00,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:00,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 17:46:00,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:46:00,951 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:46:00,951 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:46:01,227 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-13 17:46:01,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760461625] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:46:01,228 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 17:46:01,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 9 [2021-11-13 17:46:01,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587961738] [2021-11-13 17:46:01,229 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 17:46:01,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:46:01,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:46:01,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:46:01,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:46:01,230 INFO L87 Difference]: Start difference. First operand 308 states and 391 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-13 17:46:02,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:46:02,347 INFO L93 Difference]: Finished difference Result 731 states and 982 transitions. [2021-11-13 17:46:02,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-13 17:46:02,348 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 101 [2021-11-13 17:46:02,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:46:02,354 INFO L225 Difference]: With dead ends: 731 [2021-11-13 17:46:02,354 INFO L226 Difference]: Without dead ends: 475 [2021-11-13 17:46:02,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 223 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=227, Invalid=585, Unknown=0, NotChecked=0, Total=812 [2021-11-13 17:46:02,358 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 380 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 667.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.03ms SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 789.52ms IncrementalHoareTripleChecker+Time [2021-11-13 17:46:02,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 510 Invalid, 731 Unknown, 0 Unchecked, 14.03ms Time], IncrementalHoareTripleChecker [174 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 789.52ms Time] [2021-11-13 17:46:02,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2021-11-13 17:46:02,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 425. [2021-11-13 17:46:02,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 320 states have (on average 1.215625) internal successors, (389), 343 states have internal predecessors, (389), 51 states have call successors, (51), 44 states have call predecessors, (51), 53 states have return successors, (111), 50 states have call predecessors, (111), 51 states have call successors, (111) [2021-11-13 17:46:02,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 551 transitions. [2021-11-13 17:46:02,426 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 551 transitions. Word has length 101 [2021-11-13 17:46:02,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:46:02,428 INFO L470 AbstractCegarLoop]: Abstraction has 425 states and 551 transitions. [2021-11-13 17:46:02,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-13 17:46:02,428 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 551 transitions. [2021-11-13 17:46:02,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-13 17:46:02,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:46:02,440 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:46:02,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-13 17:46:02,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:46:02,654 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:46:02,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:46:02,655 INFO L85 PathProgramCache]: Analyzing trace with hash -879070667, now seen corresponding path program 2 times [2021-11-13 17:46:02,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:46:02,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605178719] [2021-11-13 17:46:02,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:46:02,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:46:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:02,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 17:46:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:02,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-13 17:46:02,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:02,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 17:46:02,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:02,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:46:02,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:02,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 17:46:02,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:02,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-13 17:46:02,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:02,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 17:46:02,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:02,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 17:46:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:03,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-13 17:46:03,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:03,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:46:03,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:03,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 17:46:03,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:03,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-13 17:46:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:03,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-13 17:46:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:03,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:46:03,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:03,068 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 49 proven. 23 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-13 17:46:03,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:46:03,068 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605178719] [2021-11-13 17:46:03,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605178719] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 17:46:03,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28178224] [2021-11-13 17:46:03,069 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 17:46:03,069 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:46:03,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:46:03,070 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:46:03,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-13 17:46:03,334 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 17:46:03,334 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:46:03,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-13 17:46:03,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:46:03,755 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-13 17:46:03,755 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:46:03,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28178224] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:46:03,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 17:46:03,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 12 [2021-11-13 17:46:03,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719936925] [2021-11-13 17:46:03,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:46:03,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:46:03,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:46:03,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:46:03,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-13 17:46:03,758 INFO L87 Difference]: Start difference. First operand 425 states and 551 transitions. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-13 17:46:04,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:46:04,370 INFO L93 Difference]: Finished difference Result 1140 states and 1546 transitions. [2021-11-13 17:46:04,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 17:46:04,370 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 147 [2021-11-13 17:46:04,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:46:04,377 INFO L225 Difference]: With dead ends: 1140 [2021-11-13 17:46:04,378 INFO L226 Difference]: Without dead ends: 766 [2021-11-13 17:46:04,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 175 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2021-11-13 17:46:04,381 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 225 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 324.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.37ms SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 384.03ms IncrementalHoareTripleChecker+Time [2021-11-13 17:46:04,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 625 Invalid, 204 Unknown, 0 Unchecked, 5.37ms Time], IncrementalHoareTripleChecker [47 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 384.03ms Time] [2021-11-13 17:46:04,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2021-11-13 17:46:04,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 739. [2021-11-13 17:46:04,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 556 states have (on average 1.20863309352518) internal successors, (672), 587 states have internal predecessors, (672), 85 states have call successors, (85), 79 states have call predecessors, (85), 97 states have return successors, (179), 90 states have call predecessors, (179), 85 states have call successors, (179) [2021-11-13 17:46:04,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 936 transitions. [2021-11-13 17:46:04,449 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 936 transitions. Word has length 147 [2021-11-13 17:46:04,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:46:04,449 INFO L470 AbstractCegarLoop]: Abstraction has 739 states and 936 transitions. [2021-11-13 17:46:04,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-13 17:46:04,450 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 936 transitions. [2021-11-13 17:46:04,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-13 17:46:04,454 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:46:04,454 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:46:04,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-13 17:46:04,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:46:04,682 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:46:04,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:46:04,682 INFO L85 PathProgramCache]: Analyzing trace with hash -2095224393, now seen corresponding path program 1 times [2021-11-13 17:46:04,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:46:04,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072099517] [2021-11-13 17:46:04,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:46:04,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:46:04,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:04,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 17:46:04,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:04,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-13 17:46:04,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:04,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 17:46:04,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:04,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:46:04,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:04,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 17:46:04,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:04,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-13 17:46:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:04,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 17:46:04,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:04,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 17:46:04,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:04,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-13 17:46:04,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:04,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:46:04,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:04,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 17:46:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:04,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-13 17:46:04,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:04,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-13 17:46:04,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:04,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:46:04,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:04,846 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 43 proven. 6 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-11-13 17:46:04,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:46:04,846 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072099517] [2021-11-13 17:46:04,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072099517] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 17:46:04,846 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235221667] [2021-11-13 17:46:04,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:46:04,847 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:46:04,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:46:04,848 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:46:04,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-13 17:46:04,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:04,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 17:46:04,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:46:05,262 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-13 17:46:05,262 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:46:05,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235221667] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:46:05,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 17:46:05,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 8 [2021-11-13 17:46:05,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445355409] [2021-11-13 17:46:05,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:46:05,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:46:05,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:46:05,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:46:05,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:46:05,265 INFO L87 Difference]: Start difference. First operand 739 states and 936 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 17:46:05,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:46:05,349 INFO L93 Difference]: Finished difference Result 1010 states and 1267 transitions. [2021-11-13 17:46:05,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:46:05,350 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 147 [2021-11-13 17:46:05,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:46:05,351 INFO L225 Difference]: With dead ends: 1010 [2021-11-13 17:46:05,351 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 17:46:05,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:46:05,356 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 9 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.53ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.11ms IncrementalHoareTripleChecker+Time [2021-11-13 17:46:05,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 411 Invalid, 17 Unknown, 0 Unchecked, 1.53ms Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 14.11ms Time] [2021-11-13 17:46:05,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 17:46:05,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 17:46:05,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:46:05,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 17:46:05,359 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 147 [2021-11-13 17:46:05,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:46:05,359 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 17:46:05,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 17:46:05,360 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 17:46:05,360 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 17:46:05,363 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 17:46:05,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-13 17:46:05,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-13 17:46:05,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-13 17:46:08,610 INFO L854 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 245 252) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0))) [2021-11-13 17:46:08,610 INFO L858 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 245 252) no Hoare annotation was computed. [2021-11-13 17:46:08,610 INFO L858 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 245 252) no Hoare annotation was computed. [2021-11-13 17:46:08,610 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 135 141) no Hoare annotation was computed. [2021-11-13 17:46:08,611 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 135 141) the Hoare annotation is: true [2021-11-13 17:46:08,611 INFO L858 garLoopResultBuilder]: For program point L447-1(lines 443 454) no Hoare annotation was computed. [2021-11-13 17:46:08,611 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 443 454) the Hoare annotation is: true [2021-11-13 17:46:08,611 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 443 454) no Hoare annotation was computed. [2021-11-13 17:46:08,611 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 913 942) no Hoare annotation was computed. [2021-11-13 17:46:08,611 INFO L858 garLoopResultBuilder]: For program point L927(lines 927 931) no Hoare annotation was computed. [2021-11-13 17:46:08,611 INFO L861 garLoopResultBuilder]: At program point L927-1(lines 927 931) the Hoare annotation is: true [2021-11-13 17:46:08,611 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 913 942) the Hoare annotation is: true [2021-11-13 17:46:08,612 INFO L858 garLoopResultBuilder]: For program point L924(line 924) no Hoare annotation was computed. [2021-11-13 17:46:08,612 INFO L861 garLoopResultBuilder]: At program point L923-2(lines 923 937) the Hoare annotation is: true [2021-11-13 17:46:08,612 INFO L861 garLoopResultBuilder]: At program point L919(line 919) the Hoare annotation is: true [2021-11-13 17:46:08,612 INFO L858 garLoopResultBuilder]: For program point L919-1(line 919) no Hoare annotation was computed. [2021-11-13 17:46:08,612 INFO L861 garLoopResultBuilder]: At program point L938(lines 913 942) the Hoare annotation is: true [2021-11-13 17:46:08,612 INFO L858 garLoopResultBuilder]: For program point L934(line 934) no Hoare annotation was computed. [2021-11-13 17:46:08,612 INFO L858 garLoopResultBuilder]: For program point L122-1(lines 122 128) no Hoare annotation was computed. [2021-11-13 17:46:08,613 INFO L854 garLoopResultBuilder]: At program point L209(line 209) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-13 17:46:08,613 INFO L854 garLoopResultBuilder]: At program point L205(line 205) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-13 17:46:08,613 INFO L854 garLoopResultBuilder]: At program point L201(line 201) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-13 17:46:08,613 INFO L858 garLoopResultBuilder]: For program point L201-1(line 201) no Hoare annotation was computed. [2021-11-13 17:46:08,613 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 111 134) no Hoare annotation was computed. [2021-11-13 17:46:08,613 INFO L854 garLoopResultBuilder]: At program point L214(line 214) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1)) .cse0 (and .cse1 (= ~waterLevel~0 1))) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-13 17:46:08,613 INFO L854 garLoopResultBuilder]: At program point L214-1(lines 195 219) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 (not (<= 1 |old(~waterLevel~0)|)) (= |old(~waterLevel~0)| ~waterLevel~0)) (or .cse0 .cse2 (not (= |old(~waterLevel~0)| 1)) .cse1) (or .cse1 (<= 2 ~waterLevel~0) (and .cse2 (<= 1 ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-13 17:46:08,614 INFO L858 garLoopResultBuilder]: For program point L532(lines 532 538) no Hoare annotation was computed. [2021-11-13 17:46:08,614 INFO L858 garLoopResultBuilder]: For program point L115-1(lines 114 133) no Hoare annotation was computed. [2021-11-13 17:46:08,614 INFO L858 garLoopResultBuilder]: For program point L528(lines 528 541) no Hoare annotation was computed. [2021-11-13 17:46:08,614 INFO L854 garLoopResultBuilder]: At program point L528-1(lines 520 544) the Hoare annotation is: (let ((.cse6 (<= 2 |timeShift___utac_acc__Specification4_spec__1_~tmp~7#1|)) (.cse7 (<= 2 ~waterLevel~0)) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse8 (<= 2 |timeShift_getWaterLevel_#res#1|))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (and .cse6 .cse7 .cse5 .cse8)) (.cse2 (not (= 1 ~systemActive~0))) (.cse4 (= ~pumpRunning~0 0)) (.cse3 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse2 (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~7#1| 1) (= |timeShift_getWaterLevel_#res#1| 1))) (or .cse0 (and .cse4 .cse5) .cse1 .cse2 (not (<= 1 |old(~waterLevel~0)|))) (or .cse2 (and .cse4 (<= 1 |timeShift___utac_acc__Specification4_spec__1_~tmp~7#1|) (<= 1 ~waterLevel~0) (<= 1 |timeShift_getWaterLevel_#res#1|)) (and .cse6 .cse7 .cse8) .cse3)))) [2021-11-13 17:46:08,614 INFO L858 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2021-11-13 17:46:08,615 INFO L854 garLoopResultBuilder]: At program point L269(lines 264 272) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-13 17:46:08,615 INFO L854 garLoopResultBuilder]: At program point L492(lines 487 495) the Hoare annotation is: (let ((.cse2 (<= 2 ~waterLevel~0)) (.cse7 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (<= 2 |timeShift_getWaterLevel_#res#1|))) (let ((.cse5 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~pumpRunning~0 0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse6 (and .cse2 .cse7 .cse3))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (= |timeShift_getWaterLevel_#res#1| 1)) (or .cse1 (and .cse2 .cse3) (and .cse4 (<= 1 ~waterLevel~0) (<= 1 |timeShift_getWaterLevel_#res#1|)) .cse5) (or .cse0 .cse1 .cse6 .cse5) (or .cse0 (and .cse4 .cse7) .cse1 (not (<= 1 |old(~waterLevel~0)|)) .cse6)))) [2021-11-13 17:46:08,615 INFO L858 garLoopResultBuilder]: For program point L203(lines 203 211) no Hoare annotation was computed. [2021-11-13 17:46:08,615 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 216) no Hoare annotation was computed. [2021-11-13 17:46:08,615 INFO L854 garLoopResultBuilder]: At program point L55(lines 50 57) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-13 17:46:08,616 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 111 134) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1)) .cse0 (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1))))) [2021-11-13 17:46:08,616 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 111 134) no Hoare annotation was computed. [2021-11-13 17:46:08,616 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2021-11-13 17:46:08,616 INFO L858 garLoopResultBuilder]: For program point L423(lines 423 427) no Hoare annotation was computed. [2021-11-13 17:46:08,616 INFO L854 garLoopResultBuilder]: At program point L423-2(lines 419 430) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-13 17:46:08,616 INFO L854 garLoopResultBuilder]: At program point L407(lines 360 408) the Hoare annotation is: false [2021-11-13 17:46:08,617 INFO L861 garLoopResultBuilder]: At program point L981(lines 974 983) the Hoare annotation is: true [2021-11-13 17:46:08,617 INFO L854 garLoopResultBuilder]: At program point L77(lines 73 79) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-11-13 17:46:08,617 INFO L858 garLoopResultBuilder]: For program point L362(lines 361 406) no Hoare annotation was computed. [2021-11-13 17:46:08,617 INFO L858 garLoopResultBuilder]: For program point L391(lines 391 402) no Hoare annotation was computed. [2021-11-13 17:46:08,617 INFO L858 garLoopResultBuilder]: For program point L994(lines 994 1001) no Hoare annotation was computed. [2021-11-13 17:46:08,617 INFO L858 garLoopResultBuilder]: For program point L994-2(lines 994 1001) no Hoare annotation was computed. [2021-11-13 17:46:08,617 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-13 17:46:08,618 INFO L854 garLoopResultBuilder]: At program point L383(line 383) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~11#1| ~systemActive~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3 (<= 1 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3))) [2021-11-13 17:46:08,618 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-13 17:46:08,618 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-13 17:46:08,618 INFO L854 garLoopResultBuilder]: At program point L404(lines 361 406) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~11#1| ~systemActive~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3 (<= 1 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3))) [2021-11-13 17:46:08,618 INFO L858 garLoopResultBuilder]: For program point L371(lines 371 377) no Hoare annotation was computed. [2021-11-13 17:46:08,618 INFO L858 garLoopResultBuilder]: For program point L371-1(lines 371 377) no Hoare annotation was computed. [2021-11-13 17:46:08,619 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 367) no Hoare annotation was computed. [2021-11-13 17:46:08,619 INFO L861 garLoopResultBuilder]: At program point L1003(lines 984 1006) the Hoare annotation is: true [2021-11-13 17:46:08,619 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-13 17:46:08,619 INFO L858 garLoopResultBuilder]: For program point L397(lines 397 401) no Hoare annotation was computed. [2021-11-13 17:46:08,619 INFO L854 garLoopResultBuilder]: At program point L971(lines 967 973) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_main_~tmp~11#1| ~systemActive~0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2021-11-13 17:46:08,619 INFO L854 garLoopResultBuilder]: At program point L397-2(lines 391 402) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~11#1| ~systemActive~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3 (<= 1 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3))) [2021-11-13 17:46:08,619 INFO L858 garLoopResultBuilder]: For program point L381(lines 381 387) no Hoare annotation was computed. [2021-11-13 17:46:08,620 INFO L854 garLoopResultBuilder]: At program point L92(lines 87 95) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2021-11-13 17:46:08,620 INFO L858 garLoopResultBuilder]: For program point L381-1(lines 381 387) no Hoare annotation was computed. [2021-11-13 17:46:08,620 INFO L861 garLoopResultBuilder]: At program point L410(lines 351 414) the Hoare annotation is: true [2021-11-13 17:46:08,620 INFO L854 garLoopResultBuilder]: At program point L373(line 373) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~11#1| ~systemActive~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3 (<= 1 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3))) [2021-11-13 17:46:08,620 INFO L854 garLoopResultBuilder]: At program point L84(lines 80 86) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-11-13 17:46:08,621 INFO L854 garLoopResultBuilder]: At program point L225(lines 220 227) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0)) (<= 2 ~waterLevel~0)) [2021-11-13 17:46:08,621 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 143 167) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0))))) [2021-11-13 17:46:08,621 INFO L858 garLoopResultBuilder]: For program point L318(lines 318 322) no Hoare annotation was computed. [2021-11-13 17:46:08,622 INFO L854 garLoopResultBuilder]: At program point L157(line 157) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0)) (and .cse2 .cse3)) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 (and (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) .cse2 .cse3 (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~4#1|))))) [2021-11-13 17:46:08,624 INFO L858 garLoopResultBuilder]: For program point L318-2(lines 318 322) no Hoare annotation was computed. [2021-11-13 17:46:08,624 INFO L858 garLoopResultBuilder]: For program point L151(lines 151 159) no Hoare annotation was computed. [2021-11-13 17:46:08,624 INFO L858 garLoopResultBuilder]: For program point L500(lines 500 506) no Hoare annotation was computed. [2021-11-13 17:46:08,624 INFO L858 garLoopResultBuilder]: For program point L147(lines 147 164) no Hoare annotation was computed. [2021-11-13 17:46:08,624 INFO L854 garLoopResultBuilder]: At program point L162(line 162) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0))) [2021-11-13 17:46:08,625 INFO L858 garLoopResultBuilder]: For program point L162-1(lines 143 167) no Hoare annotation was computed. [2021-11-13 17:46:08,625 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 143 167) no Hoare annotation was computed. [2021-11-13 17:46:08,625 INFO L854 garLoopResultBuilder]: At program point L505(lines 496 509) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0)) (and (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) .cse0))) [2021-11-13 17:46:08,625 INFO L858 garLoopResultBuilder]: For program point L235(lines 235 241) no Hoare annotation was computed. [2021-11-13 17:46:08,626 INFO L854 garLoopResultBuilder]: At program point L233(line 233) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0)) (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0))) [2021-11-13 17:46:08,627 INFO L854 garLoopResultBuilder]: At program point L235-2(lines 228 244) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0)) (<= 2 ~waterLevel~0)) [2021-11-13 17:46:08,627 INFO L858 garLoopResultBuilder]: For program point L233-1(line 233) no Hoare annotation was computed. [2021-11-13 17:46:08,627 INFO L854 garLoopResultBuilder]: At program point L324(lines 309 327) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 (and (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~4#1|))) (let ((.cse2 (= ~pumpRunning~0 0))) (or .cse0 (and .cse2 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~0#1| 0)) .cse1 (not (<= 1 ~waterLevel~0)) (and .cse2 (<= 2 ~waterLevel~0)))))) [2021-11-13 17:46:08,627 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 431 442) no Hoare annotation was computed. [2021-11-13 17:46:08,627 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 431 442) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= ~pumpRunning~0 0)) (not (= |old(~waterLevel~0)| 1)) .cse0 (= ~waterLevel~0 1)) (or .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-13 17:46:08,628 INFO L858 garLoopResultBuilder]: For program point L435-1(lines 431 442) no Hoare annotation was computed. [2021-11-13 17:46:08,628 INFO L854 garLoopResultBuilder]: At program point L188(line 188) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0))) [2021-11-13 17:46:08,628 INFO L858 garLoopResultBuilder]: For program point L188-1(lines 169 193) no Hoare annotation was computed. [2021-11-13 17:46:08,629 INFO L854 garLoopResultBuilder]: At program point L343(lines 328 346) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~waterLevel~0)))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_~tmp~5#1| 0) (<= 1 |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_#res#1|) (= |processEnvironment__wrappee__methaneQuery_isLowWaterSensorDry_#res#1| 0) (<= 1 |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_~tmp___0~1#1|))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2021-11-13 17:46:08,629 INFO L858 garLoopResultBuilder]: For program point L337(lines 337 341) no Hoare annotation was computed. [2021-11-13 17:46:08,629 INFO L858 garLoopResultBuilder]: For program point L337-2(lines 337 341) no Hoare annotation was computed. [2021-11-13 17:46:08,630 INFO L854 garLoopResultBuilder]: At program point L515(lines 510 518) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~waterLevel~0)))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |processEnvironment__wrappee__methaneQuery_isLowWaterSensorDry_#res#1| 0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2021-11-13 17:46:08,630 INFO L854 garLoopResultBuilder]: At program point L183(line 183) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0))) [2021-11-13 17:46:08,630 INFO L854 garLoopResultBuilder]: At program point L179(line 179) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~waterLevel~0)))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_~tmp~5#1| 0) (<= 1 |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_#res#1|) (= |processEnvironment__wrappee__methaneQuery_isLowWaterSensorDry_#res#1| 0) (<= 1 |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_~tmp___0~1#1|) (<= 1 |processEnvironment__wrappee__methaneQuery_~tmp~1#1|))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2021-11-13 17:46:08,630 INFO L858 garLoopResultBuilder]: For program point L177(lines 177 185) no Hoare annotation was computed. [2021-11-13 17:46:08,630 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 169 193) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0))) [2021-11-13 17:46:08,630 INFO L858 garLoopResultBuilder]: For program point L173(lines 173 190) no Hoare annotation was computed. [2021-11-13 17:46:08,631 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 169 193) no Hoare annotation was computed. [2021-11-13 17:46:08,631 INFO L861 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 253 263) the Hoare annotation is: true [2021-11-13 17:46:08,631 INFO L861 garLoopResultBuilder]: At program point L460(lines 455 463) the Hoare annotation is: true [2021-11-13 17:46:08,631 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 253 263) no Hoare annotation was computed. [2021-11-13 17:46:08,631 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 253 263) no Hoare annotation was computed. [2021-11-13 17:46:08,635 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:46:08,638 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 17:46:08,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 05:46:08 BoogieIcfgContainer [2021-11-13 17:46:08,673 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 17:46:08,674 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 17:46:08,674 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 17:46:08,674 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 17:46:08,675 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:45:53" (3/4) ... [2021-11-13 17:46:08,679 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 17:46:08,686 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2021-11-13 17:46:08,687 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-11-13 17:46:08,687 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-11-13 17:46:08,687 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-11-13 17:46:08,687 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-11-13 17:46:08,687 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2021-11-13 17:46:08,688 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-11-13 17:46:08,688 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2021-11-13 17:46:08,688 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2021-11-13 17:46:08,701 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2021-11-13 17:46:08,702 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-11-13 17:46:08,703 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-13 17:46:08,703 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-13 17:46:08,704 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-13 17:46:08,705 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 17:46:08,706 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 17:46:08,736 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2021-11-13 17:46:08,736 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && tmp == systemActive) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2021-11-13 17:46:08,737 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == 0 && tmp == systemActive) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) || ((((2 <= waterLevel && tmp == systemActive) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) [2021-11-13 17:46:08,738 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) [2021-11-13 17:46:08,739 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || \old(waterLevel) == waterLevel) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (((!(1 == systemActive) || 2 <= waterLevel) || (pumpRunning == 0 && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) [2021-11-13 17:46:08,740 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || \result == 1) && (((!(1 == systemActive) || (2 <= waterLevel && 2 <= \result)) || ((pumpRunning == 0 && 1 <= waterLevel) && 1 <= \result)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((2 <= waterLevel && \old(waterLevel) == waterLevel) && 2 <= \result)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || ((2 <= waterLevel && \old(waterLevel) == waterLevel) && 2 <= \result)) [2021-11-13 17:46:08,740 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || (((2 <= tmp && 2 <= waterLevel) && \old(waterLevel) == waterLevel) && 2 <= \result)) || !(1 == systemActive)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (tmp == 1 && \result == 1))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || (((2 <= tmp && 2 <= waterLevel) && \old(waterLevel) == waterLevel) && 2 <= \result)) || !(1 == systemActive)) || !(1 <= \old(waterLevel)))) && (((!(1 == systemActive) || (((pumpRunning == 0 && 1 <= tmp) && 1 <= waterLevel) && 1 <= \result)) || ((2 <= tmp && 2 <= waterLevel) && 2 <= \result)) || !(2 <= \old(waterLevel))) [2021-11-13 17:46:08,741 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || !(1 <= waterLevel)) || (pumpRunning == \old(pumpRunning) && \result == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) [2021-11-13 17:46:08,741 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || !(2 <= \old(waterLevel))) [2021-11-13 17:46:08,742 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || 2 <= waterLevel [2021-11-13 17:46:08,742 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || (pumpRunning == 0 && 2 <= waterLevel)) || (1 <= \result && pumpRunning == 0) [2021-11-13 17:46:08,742 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || 2 <= waterLevel [2021-11-13 17:46:08,742 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || !(1 <= waterLevel)) || ((((pumpRunning == \old(pumpRunning) && tmp == 0) && 1 <= \result) && \result == 0) && 1 <= tmp___0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) [2021-11-13 17:46:08,743 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || !(2 <= \old(waterLevel))) [2021-11-13 17:46:08,743 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (1 <= \result && 1 <= tmp)) && ((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \result == 0) && tmp___0 == 0)) || !(1 == systemActive)) || !(1 <= waterLevel)) || (pumpRunning == 0 && 2 <= waterLevel)) [2021-11-13 17:46:08,780 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/witness.graphml [2021-11-13 17:46:08,780 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 17:46:08,781 INFO L158 Benchmark]: Toolchain (without parser) took 17124.02ms. Allocated memory was 113.2MB in the beginning and 205.5MB in the end (delta: 92.3MB). Free memory was 81.2MB in the beginning and 59.6MB in the end (delta: 21.6MB). Peak memory consumption was 112.0MB. Max. memory is 16.1GB. [2021-11-13 17:46:08,781 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 113.2MB. Free memory is still 66.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 17:46:08,781 INFO L158 Benchmark]: CACSL2BoogieTranslator took 783.67ms. Allocated memory is still 113.2MB. Free memory was 80.9MB in the beginning and 76.4MB in the end (delta: 4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-13 17:46:08,782 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.76ms. Allocated memory is still 113.2MB. Free memory was 76.4MB in the beginning and 73.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 17:46:08,782 INFO L158 Benchmark]: Boogie Preprocessor took 86.27ms. Allocated memory is still 113.2MB. Free memory was 73.8MB in the beginning and 71.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 17:46:08,783 INFO L158 Benchmark]: RCFGBuilder took 1208.74ms. Allocated memory was 113.2MB in the beginning and 140.5MB in the end (delta: 27.3MB). Free memory was 71.8MB in the beginning and 95.1MB in the end (delta: -23.3MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2021-11-13 17:46:08,783 INFO L158 Benchmark]: TraceAbstraction took 14819.74ms. Allocated memory was 140.5MB in the beginning and 205.5MB in the end (delta: 65.0MB). Free memory was 94.3MB in the beginning and 67.0MB in the end (delta: 27.4MB). Peak memory consumption was 94.9MB. Max. memory is 16.1GB. [2021-11-13 17:46:08,791 INFO L158 Benchmark]: Witness Printer took 105.86ms. Allocated memory is still 205.5MB. Free memory was 65.9MB in the beginning and 59.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-13 17:46:08,793 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 113.2MB. Free memory is still 66.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 783.67ms. Allocated memory is still 113.2MB. Free memory was 80.9MB in the beginning and 76.4MB in the end (delta: 4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.76ms. Allocated memory is still 113.2MB. Free memory was 76.4MB in the beginning and 73.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.27ms. Allocated memory is still 113.2MB. Free memory was 73.8MB in the beginning and 71.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1208.74ms. Allocated memory was 113.2MB in the beginning and 140.5MB in the end (delta: 27.3MB). Free memory was 71.8MB in the beginning and 95.1MB in the end (delta: -23.3MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. * TraceAbstraction took 14819.74ms. Allocated memory was 140.5MB in the beginning and 205.5MB in the end (delta: 65.0MB). Free memory was 94.3MB in the beginning and 67.0MB in the end (delta: 27.4MB). Peak memory consumption was 94.9MB. Max. memory is 16.1GB. * Witness Printer took 105.86ms. Allocated memory is still 205.5MB. Free memory was 65.9MB in the beginning and 59.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.7s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1923 SdHoareTripleChecker+Valid, 4097.55ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1899 mSDsluCounter, 4221 SdHoareTripleChecker+Invalid, 3403.69ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2838 mSDsCounter, 608 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2337 IncrementalHoareTripleChecker+Invalid, 2945 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 608 mSolverCounterUnsat, 1383 mSDtfsCounter, 2337 mSolverCounterSat, 79.51ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 776 GetRequests, 641 SyntacticMatches, 9 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=739occurred in iteration=11, InterpolantAutomatonStates: 122, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 229 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 48 LocationsWithAnnotation, 1414 PreInvPairs, 1521 NumberOfFragments, 1121 HoareAnnotationTreeSize, 1414 FomulaSimplifications, 1718 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 48 FomulaSimplificationsInter, 7685 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 1149 NumberOfCodeBlocks, 1149 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1234 ConstructedInterpolants, 0 QuantifiedInterpolants, 2146 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1846 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 434/492 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 80]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 195]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || \old(waterLevel) == waterLevel) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (((!(1 == systemActive) || 2 <= waterLevel) || (pumpRunning == 0 && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 984]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 328]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || !(1 <= waterLevel)) || ((((pumpRunning == \old(pumpRunning) && tmp == 0) && 1 <= \result) && \result == 0) && 1 <= tmp___0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) - InvariantResult [Line: 913]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 419]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 496]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || (pumpRunning == 0 && 2 <= waterLevel)) || (1 <= \result && pumpRunning == 0) - InvariantResult [Line: 455]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (1 <= \result && 1 <= tmp)) && ((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \result == 0) && tmp___0 == 0)) || !(1 == systemActive)) || !(1 <= waterLevel)) || (pumpRunning == 0 && 2 <= waterLevel)) - InvariantResult [Line: 220]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || 2 <= waterLevel - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 967]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && tmp == systemActive) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 974]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 520]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || (((2 <= tmp && 2 <= waterLevel) && \old(waterLevel) == waterLevel) && 2 <= \result)) || !(1 == systemActive)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (tmp == 1 && \result == 1))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || (((2 <= tmp && 2 <= waterLevel) && \old(waterLevel) == waterLevel) && 2 <= \result)) || !(1 == systemActive)) || !(1 <= \old(waterLevel)))) && (((!(1 == systemActive) || (((pumpRunning == 0 && 1 <= tmp) && 1 <= waterLevel) && 1 <= \result)) || ((2 <= tmp && 2 <= waterLevel) && 2 <= \result)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 487]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || \result == 1) && (((!(1 == systemActive) || (2 <= waterLevel && 2 <= \result)) || ((pumpRunning == 0 && 1 <= waterLevel) && 1 <= \result)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((2 <= waterLevel && \old(waterLevel) == waterLevel) && 2 <= \result)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || ((2 <= waterLevel && \old(waterLevel) == waterLevel) && 2 <= \result)) - InvariantResult [Line: 264]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 351]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 228]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || 2 <= waterLevel - InvariantResult [Line: 361]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && tmp == systemActive) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) || ((((2 <= waterLevel && tmp == systemActive) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 510]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || !(1 <= waterLevel)) || (pumpRunning == \old(pumpRunning) && \result == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) - InvariantResult [Line: 923]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-13 17:46:08,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c336db60-a445-4bda-bdcf-37b9111676e4/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE