./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product52.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_138d99ad-f55c-4842-9d6b-9a1b05c8da75/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_138d99ad-f55c-4842-9d6b-9a1b05c8da75/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_138d99ad-f55c-4842-9d6b-9a1b05c8da75/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_138d99ad-f55c-4842-9d6b-9a1b05c8da75/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product52.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_138d99ad-f55c-4842-9d6b-9a1b05c8da75/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_138d99ad-f55c-4842-9d6b-9a1b05c8da75/bin/uautomizer-WNIpwEf4Nt --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 4a7d01a18e8eb658e3fdab12793134365cb1bc41 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 01:08:47,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:08:47,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:08:47,191 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:08:47,192 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:08:47,197 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:08:47,199 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:08:47,203 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:08:47,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:08:47,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:08:47,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:08:47,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:08:47,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:08:47,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:08:47,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:08:47,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:08:47,228 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:08:47,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:08:47,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:08:47,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:08:47,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:08:47,243 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:08:47,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:08:47,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:08:47,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:08:47,258 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:08:47,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:08:47,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:08:47,261 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:08:47,263 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:08:47,263 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:08:47,264 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:08:47,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:08:47,268 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:08:47,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:08:47,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:08:47,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:08:47,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:08:47,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:08:47,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:08:47,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:08:47,274 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_138d99ad-f55c-4842-9d6b-9a1b05c8da75/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 01:08:47,318 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:08:47,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:08:47,319 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:08:47,320 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:08:47,327 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:08:47,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:08:47,328 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:08:47,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:08:47,329 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:08:47,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:08:47,330 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:08:47,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:08:47,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 01:08:47,331 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 01:08:47,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 01:08:47,331 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:08:47,331 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:08:47,332 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:08:47,332 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 01:08:47,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:08:47,332 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:08:47,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 01:08:47,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 01:08:47,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:08:47,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 01:08:47,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 01:08:47,334 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:08:47,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 01:08:47,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 01:08:47,336 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:08:47,336 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_138d99ad-f55c-4842-9d6b-9a1b05c8da75/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_138d99ad-f55c-4842-9d6b-9a1b05c8da75/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a7d01a18e8eb658e3fdab12793134365cb1bc41 [2021-10-13 01:08:47,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:08:47,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:08:47,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:08:47,652 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:08:47,653 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:08:47,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_138d99ad-f55c-4842-9d6b-9a1b05c8da75/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec4_product52.cil.c [2021-10-13 01:08:47,765 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_138d99ad-f55c-4842-9d6b-9a1b05c8da75/bin/uautomizer-WNIpwEf4Nt/data/b54d6288e/d870dc6a0ebc4435a1b555aa12fd83d0/FLAGc36b667b9 [2021-10-13 01:08:48,404 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:08:48,405 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_138d99ad-f55c-4842-9d6b-9a1b05c8da75/sv-benchmarks/c/product-lines/minepump_spec4_product52.cil.c [2021-10-13 01:08:48,418 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_138d99ad-f55c-4842-9d6b-9a1b05c8da75/bin/uautomizer-WNIpwEf4Nt/data/b54d6288e/d870dc6a0ebc4435a1b555aa12fd83d0/FLAGc36b667b9 [2021-10-13 01:08:48,677 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_138d99ad-f55c-4842-9d6b-9a1b05c8da75/bin/uautomizer-WNIpwEf4Nt/data/b54d6288e/d870dc6a0ebc4435a1b555aa12fd83d0 [2021-10-13 01:08:48,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:08:48,682 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:08:48,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:08:48,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:08:48,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:08:48,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:08:48" (1/1) ... [2021-10-13 01:08:48,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fbd6a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:48, skipping insertion in model container [2021-10-13 01:08:48,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:08:48" (1/1) ... [2021-10-13 01:08:48,703 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:08:48,767 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:08:49,056 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_138d99ad-f55c-4842-9d6b-9a1b05c8da75/sv-benchmarks/c/product-lines/minepump_spec4_product52.cil.c[18107,18120] [2021-10-13 01:08:49,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:08:49,070 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:08:49,167 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_138d99ad-f55c-4842-9d6b-9a1b05c8da75/sv-benchmarks/c/product-lines/minepump_spec4_product52.cil.c[18107,18120] [2021-10-13 01:08:49,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:08:49,189 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:08:49,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:49 WrapperNode [2021-10-13 01:08:49,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:08:49,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:08:49,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:08:49,209 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:08:49,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:49" (1/1) ... [2021-10-13 01:08:49,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:49" (1/1) ... [2021-10-13 01:08:49,306 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:08:49,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:08:49,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:08:49,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:08:49,316 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:49" (1/1) ... [2021-10-13 01:08:49,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:49" (1/1) ... [2021-10-13 01:08:49,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:49" (1/1) ... [2021-10-13 01:08:49,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:49" (1/1) ... [2021-10-13 01:08:49,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:49" (1/1) ... [2021-10-13 01:08:49,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:49" (1/1) ... [2021-10-13 01:08:49,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:49" (1/1) ... [2021-10-13 01:08:49,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:08:49,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:08:49,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:08:49,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:08:49,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:49" (1/1) ... [2021-10-13 01:08:49,370 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 01:08:49,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_138d99ad-f55c-4842-9d6b-9a1b05c8da75/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:49,394 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_138d99ad-f55c-4842-9d6b-9a1b05c8da75/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:49,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_138d99ad-f55c-4842-9d6b-9a1b05c8da75/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 01:08:49,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:08:49,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 01:08:49,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:08:49,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:08:50,467 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:08:50,467 INFO L299 CfgBuilder]: Removed 162 assume(true) statements. [2021-10-13 01:08:50,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:08:50 BoogieIcfgContainer [2021-10-13 01:08:50,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:08:50,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 01:08:50,471 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 01:08:50,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 01:08:50,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:08:48" (1/3) ... [2021-10-13 01:08:50,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c75ef89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:08:50, skipping insertion in model container [2021-10-13 01:08:50,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:49" (2/3) ... [2021-10-13 01:08:50,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c75ef89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:08:50, skipping insertion in model container [2021-10-13 01:08:50,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:08:50" (3/3) ... [2021-10-13 01:08:50,478 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product52.cil.c [2021-10-13 01:08:50,484 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 01:08:50,484 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-13 01:08:50,534 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 01:08:50,540 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-10-13 01:08:50,540 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-13 01:08:50,559 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 115 states have (on average 1.565217391304348) internal successors, (180), 118 states have internal predecessors, (180), 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) [2021-10-13 01:08:50,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 01:08:50,565 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:08:50,565 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:08:50,566 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:08:50,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:50,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1794729554, now seen corresponding path program 1 times [2021-10-13 01:08:50,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:50,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910576161] [2021-10-13 01:08:50,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:50,582 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:50,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:08:50,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:08:50,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:08:50,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910576161] [2021-10-13 01:08:50,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910576161] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:08:50,898 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:08:50,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 01:08:50,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713727882] [2021-10-13 01:08:50,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 01:08:50,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:08:50,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 01:08:50,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 01:08:50,935 INFO L87 Difference]: Start difference. First operand has 119 states, 115 states have (on average 1.565217391304348) internal successors, (180), 118 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2021-10-13 01:08:50,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:08:50,964 INFO L93 Difference]: Finished difference Result 232 states and 353 transitions. [2021-10-13 01:08:50,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 01:08:50,965 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) Word has length 16 [2021-10-13 01:08:50,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:08:50,976 INFO L225 Difference]: With dead ends: 232 [2021-10-13 01:08:50,976 INFO L226 Difference]: Without dead ends: 115 [2021-10-13 01:08:50,979 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 01:08:50,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-10-13 01:08:51,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-10-13 01:08:51,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 112 states have (on average 1.5) internal successors, (168), 114 states have internal predecessors, (168), 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) [2021-10-13 01:08:51,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2021-10-13 01:08:51,021 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 16 [2021-10-13 01:08:51,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:08:51,021 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2021-10-13 01:08:51,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2021-10-13 01:08:51,022 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2021-10-13 01:08:51,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 01:08:51,023 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:08:51,023 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:08:51,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 01:08:51,024 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:08:51,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:51,025 INFO L82 PathProgramCache]: Analyzing trace with hash 529368141, now seen corresponding path program 1 times [2021-10-13 01:08:51,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:51,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221652935] [2021-10-13 01:08:51,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:51,026 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:51,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:08:51,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:08:51,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:08:51,115 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221652935] [2021-10-13 01:08:51,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221652935] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:08:51,116 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:08:51,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:08:51,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227308604] [2021-10-13 01:08:51,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:08:51,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:08:51,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:08:51,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:08:51,119 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-10-13 01:08:51,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:08:51,136 INFO L93 Difference]: Finished difference Result 115 states and 168 transitions. [2021-10-13 01:08:51,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:08:51,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) Word has length 17 [2021-10-13 01:08:51,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:08:51,144 INFO L225 Difference]: With dead ends: 115 [2021-10-13 01:08:51,144 INFO L226 Difference]: Without dead ends: 49 [2021-10-13 01:08:51,145 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:08:51,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-13 01:08:51,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-10-13 01:08:51,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.4791666666666667) internal successors, (71), 48 states have internal predecessors, (71), 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) [2021-10-13 01:08:51,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2021-10-13 01:08:51,151 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 17 [2021-10-13 01:08:51,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:08:51,151 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2021-10-13 01:08:51,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-10-13 01:08:51,152 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2021-10-13 01:08:51,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 01:08:51,153 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:08:51,153 INFO L512 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] [2021-10-13 01:08:51,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 01:08:51,154 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:08:51,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:51,154 INFO L82 PathProgramCache]: Analyzing trace with hash -2061312917, now seen corresponding path program 1 times [2021-10-13 01:08:51,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:51,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047269834] [2021-10-13 01:08:51,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:51,155 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:51,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:08:51,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:08:51,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:08:51,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047269834] [2021-10-13 01:08:51,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047269834] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:08:51,259 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:08:51,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 01:08:51,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055220377] [2021-10-13 01:08:51,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 01:08:51,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:08:51,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 01:08:51,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:08:51,261 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:08:51,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:08:51,351 INFO L93 Difference]: Finished difference Result 115 states and 170 transitions. [2021-10-13 01:08:51,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 01:08:51,357 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-13 01:08:51,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:08:51,361 INFO L225 Difference]: With dead ends: 115 [2021-10-13 01:08:51,361 INFO L226 Difference]: Without dead ends: 72 [2021-10-13 01:08:51,362 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 36.8ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 01:08:51,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-10-13 01:08:51,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 68. [2021-10-13 01:08:51,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.492537313432836) internal successors, (100), 67 states have internal predecessors, (100), 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) [2021-10-13 01:08:51,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 100 transitions. [2021-10-13 01:08:51,376 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 100 transitions. Word has length 22 [2021-10-13 01:08:51,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:08:51,376 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 100 transitions. [2021-10-13 01:08:51,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:08:51,383 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2021-10-13 01:08:51,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 01:08:51,385 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:08:51,385 INFO L512 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] [2021-10-13 01:08:51,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 01:08:51,385 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:08:51,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:51,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1499976397, now seen corresponding path program 1 times [2021-10-13 01:08:51,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:51,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835507055] [2021-10-13 01:08:51,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:51,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:51,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:08:51,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:08:51,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:08:51,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835507055] [2021-10-13 01:08:51,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835507055] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:08:51,512 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:08:51,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 01:08:51,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608500004] [2021-10-13 01:08:51,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:08:51,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:08:51,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:08:51,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:08:51,514 INFO L87 Difference]: Start difference. First operand 68 states and 100 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:08:51,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:08:51,572 INFO L93 Difference]: Finished difference Result 151 states and 224 transitions. [2021-10-13 01:08:51,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:08:51,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-13 01:08:51,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:08:51,575 INFO L225 Difference]: With dead ends: 151 [2021-10-13 01:08:51,575 INFO L226 Difference]: Without dead ends: 89 [2021-10-13 01:08:51,576 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:08:51,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-10-13 01:08:51,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2021-10-13 01:08:51,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 86 states have (on average 1.441860465116279) internal successors, (124), 86 states have internal predecessors, (124), 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) [2021-10-13 01:08:51,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 124 transitions. [2021-10-13 01:08:51,589 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 124 transitions. Word has length 24 [2021-10-13 01:08:51,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:08:51,590 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 124 transitions. [2021-10-13 01:08:51,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:08:51,590 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 124 transitions. [2021-10-13 01:08:51,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 01:08:51,592 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:08:51,592 INFO L512 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] [2021-10-13 01:08:51,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 01:08:51,593 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:08:51,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:51,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1678878848, now seen corresponding path program 1 times [2021-10-13 01:08:51,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:51,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477715903] [2021-10-13 01:08:51,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:51,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:51,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:08:51,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:08:51,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:08:51,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477715903] [2021-10-13 01:08:51,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477715903] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:08:51,711 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:08:51,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 01:08:51,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854720257] [2021-10-13 01:08:51,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 01:08:51,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:08:51,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 01:08:51,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:08:51,713 INFO L87 Difference]: Start difference. First operand 87 states and 124 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-10-13 01:08:51,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:08:51,821 INFO L93 Difference]: Finished difference Result 307 states and 445 transitions. [2021-10-13 01:08:51,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 01:08:51,822 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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) Word has length 25 [2021-10-13 01:08:51,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:08:51,825 INFO L225 Difference]: With dead ends: 307 [2021-10-13 01:08:51,826 INFO L226 Difference]: Without dead ends: 226 [2021-10-13 01:08:51,827 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 35.2ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 01:08:51,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-10-13 01:08:51,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 146. [2021-10-13 01:08:51,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 145 states have (on average 1.4) internal successors, (203), 145 states have internal predecessors, (203), 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) [2021-10-13 01:08:51,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 203 transitions. [2021-10-13 01:08:51,864 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 203 transitions. Word has length 25 [2021-10-13 01:08:51,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:08:51,864 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 203 transitions. [2021-10-13 01:08:51,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-10-13 01:08:51,865 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 203 transitions. [2021-10-13 01:08:51,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 01:08:51,866 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:08:51,866 INFO L512 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] [2021-10-13 01:08:51,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 01:08:51,866 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:08:51,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:51,867 INFO L82 PathProgramCache]: Analyzing trace with hash -280430142, now seen corresponding path program 1 times [2021-10-13 01:08:51,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:51,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017460865] [2021-10-13 01:08:51,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:51,868 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:51,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:08:51,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:08:51,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:08:51,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017460865] [2021-10-13 01:08:51,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017460865] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:08:51,962 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:08:51,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 01:08:51,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408618389] [2021-10-13 01:08:51,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 01:08:51,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:08:51,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 01:08:51,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:08:51,965 INFO L87 Difference]: Start difference. First operand 146 states and 203 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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) [2021-10-13 01:08:52,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:08:52,068 INFO L93 Difference]: Finished difference Result 303 states and 430 transitions. [2021-10-13 01:08:52,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 01:08:52,069 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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) Word has length 26 [2021-10-13 01:08:52,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:08:52,071 INFO L225 Difference]: With dead ends: 303 [2021-10-13 01:08:52,071 INFO L226 Difference]: Without dead ends: 301 [2021-10-13 01:08:52,071 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 28.7ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 01:08:52,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2021-10-13 01:08:52,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 146. [2021-10-13 01:08:52,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 145 states have (on average 1.3862068965517242) internal successors, (201), 145 states have internal predecessors, (201), 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) [2021-10-13 01:08:52,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 201 transitions. [2021-10-13 01:08:52,099 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 201 transitions. Word has length 26 [2021-10-13 01:08:52,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:08:52,099 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 201 transitions. [2021-10-13 01:08:52,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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) [2021-10-13 01:08:52,100 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 201 transitions. [2021-10-13 01:08:52,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-13 01:08:52,105 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:08:52,105 INFO L512 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] [2021-10-13 01:08:52,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 01:08:52,106 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:08:52,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:52,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1932951004, now seen corresponding path program 1 times [2021-10-13 01:08:52,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:52,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180200797] [2021-10-13 01:08:52,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:52,107 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:52,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:08:52,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:08:52,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:08:52,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180200797] [2021-10-13 01:08:52,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180200797] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:08:52,182 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:08:52,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:08:52,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610185624] [2021-10-13 01:08:52,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 01:08:52,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:08:52,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:08:52,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:08:52,184 INFO L87 Difference]: Start difference. First operand 146 states and 201 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-10-13 01:08:52,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:08:52,299 INFO L93 Difference]: Finished difference Result 299 states and 419 transitions. [2021-10-13 01:08:52,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:08:52,300 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) Word has length 31 [2021-10-13 01:08:52,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:08:52,302 INFO L225 Difference]: With dead ends: 299 [2021-10-13 01:08:52,302 INFO L226 Difference]: Without dead ends: 218 [2021-10-13 01:08:52,304 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.6ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:08:52,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-10-13 01:08:52,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 215. [2021-10-13 01:08:52,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 214 states have (on average 1.3831775700934579) internal successors, (296), 214 states have internal predecessors, (296), 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) [2021-10-13 01:08:52,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 296 transitions. [2021-10-13 01:08:52,329 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 296 transitions. Word has length 31 [2021-10-13 01:08:52,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:08:52,331 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 296 transitions. [2021-10-13 01:08:52,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-10-13 01:08:52,331 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 296 transitions. [2021-10-13 01:08:52,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-13 01:08:52,334 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:08:52,335 INFO L512 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] [2021-10-13 01:08:52,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 01:08:52,335 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:08:52,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:52,336 INFO L82 PathProgramCache]: Analyzing trace with hash -2103850854, now seen corresponding path program 1 times [2021-10-13 01:08:52,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:52,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646825216] [2021-10-13 01:08:52,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:52,337 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:52,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:08:52,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:08:52,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:08:52,405 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646825216] [2021-10-13 01:08:52,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646825216] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:08:52,405 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:08:52,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 01:08:52,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987271788] [2021-10-13 01:08:52,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 01:08:52,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:08:52,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:08:52,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:08:52,407 INFO L87 Difference]: Start difference. First operand 215 states and 296 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2021-10-13 01:08:52,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:08:52,473 INFO L93 Difference]: Finished difference Result 643 states and 898 transitions. [2021-10-13 01:08:52,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 01:08:52,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) Word has length 31 [2021-10-13 01:08:52,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:08:52,476 INFO L225 Difference]: With dead ends: 643 [2021-10-13 01:08:52,477 INFO L226 Difference]: Without dead ends: 492 [2021-10-13 01:08:52,478 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:08:52,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2021-10-13 01:08:52,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 215. [2021-10-13 01:08:52,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 214 states have (on average 1.3738317757009346) internal successors, (294), 214 states have internal predecessors, (294), 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) [2021-10-13 01:08:52,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 294 transitions. [2021-10-13 01:08:52,505 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 294 transitions. Word has length 31 [2021-10-13 01:08:52,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:08:52,505 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 294 transitions. [2021-10-13 01:08:52,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2021-10-13 01:08:52,506 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 294 transitions. [2021-10-13 01:08:52,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-13 01:08:52,506 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:08:52,507 INFO L512 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] [2021-10-13 01:08:52,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 01:08:52,507 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:08:52,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:52,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1798089432, now seen corresponding path program 1 times [2021-10-13 01:08:52,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:52,508 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453278204] [2021-10-13 01:08:52,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:52,508 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:52,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:08:52,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:08:52,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:08:52,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453278204] [2021-10-13 01:08:52,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453278204] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:08:52,585 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:08:52,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 01:08:52,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138618030] [2021-10-13 01:08:52,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 01:08:52,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:08:52,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 01:08:52,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:08:52,587 INFO L87 Difference]: Start difference. First operand 215 states and 294 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2021-10-13 01:08:52,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:08:52,761 INFO L93 Difference]: Finished difference Result 466 states and 647 transitions. [2021-10-13 01:08:52,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 01:08:52,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) Word has length 31 [2021-10-13 01:08:52,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:08:52,766 INFO L225 Difference]: With dead ends: 466 [2021-10-13 01:08:52,766 INFO L226 Difference]: Without dead ends: 315 [2021-10-13 01:08:52,769 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 32.3ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 01:08:52,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2021-10-13 01:08:52,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 241. [2021-10-13 01:08:52,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 240 states have (on average 1.3833333333333333) internal successors, (332), 240 states have internal predecessors, (332), 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) [2021-10-13 01:08:52,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 332 transitions. [2021-10-13 01:08:52,802 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 332 transitions. Word has length 31 [2021-10-13 01:08:52,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:08:52,804 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 332 transitions. [2021-10-13 01:08:52,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2021-10-13 01:08:52,804 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 332 transitions. [2021-10-13 01:08:52,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-13 01:08:52,806 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:08:52,807 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-10-13 01:08:52,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 01:08:52,807 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:08:52,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:52,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1425513119, now seen corresponding path program 1 times [2021-10-13 01:08:52,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:52,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600945257] [2021-10-13 01:08:52,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:52,810 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:52,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:08:52,894 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 01:08:52,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:08:52,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600945257] [2021-10-13 01:08:52,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600945257] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:08:52,895 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:08:52,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 01:08:52,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815346914] [2021-10-13 01:08:52,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 01:08:52,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:08:52,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 01:08:52,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:08:52,898 INFO L87 Difference]: Start difference. First operand 241 states and 332 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2021-10-13 01:08:53,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:08:53,002 INFO L93 Difference]: Finished difference Result 737 states and 1016 transitions. [2021-10-13 01:08:53,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 01:08:53,003 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) Word has length 51 [2021-10-13 01:08:53,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:08:53,007 INFO L225 Difference]: With dead ends: 737 [2021-10-13 01:08:53,007 INFO L226 Difference]: Without dead ends: 502 [2021-10-13 01:08:53,008 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.3ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:08:53,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2021-10-13 01:08:53,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 250. [2021-10-13 01:08:53,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 249 states have (on average 1.3694779116465863) internal successors, (341), 249 states have internal predecessors, (341), 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) [2021-10-13 01:08:53,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 341 transitions. [2021-10-13 01:08:53,036 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 341 transitions. Word has length 51 [2021-10-13 01:08:53,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:08:53,037 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 341 transitions. [2021-10-13 01:08:53,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2021-10-13 01:08:53,037 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 341 transitions. [2021-10-13 01:08:53,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-13 01:08:53,039 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:08:53,039 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-10-13 01:08:53,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 01:08:53,040 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:08:53,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:53,044 INFO L82 PathProgramCache]: Analyzing trace with hash -723913245, now seen corresponding path program 1 times [2021-10-13 01:08:53,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:53,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861997953] [2021-10-13 01:08:53,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:53,047 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:08:53,105 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 01:08:53,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:08:53,106 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861997953] [2021-10-13 01:08:53,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861997953] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:08:53,106 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:08:53,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 01:08:53,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429072054] [2021-10-13 01:08:53,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 01:08:53,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:08:53,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:08:53,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:08:53,108 INFO L87 Difference]: Start difference. First operand 250 states and 341 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2021-10-13 01:08:53,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:08:53,180 INFO L93 Difference]: Finished difference Result 588 states and 802 transitions. [2021-10-13 01:08:53,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:08:53,180 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) Word has length 51 [2021-10-13 01:08:53,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:08:53,183 INFO L225 Difference]: With dead ends: 588 [2021-10-13 01:08:53,183 INFO L226 Difference]: Without dead ends: 344 [2021-10-13 01:08:53,184 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:08:53,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2021-10-13 01:08:53,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 218. [2021-10-13 01:08:53,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 217 states have (on average 1.3410138248847927) internal successors, (291), 217 states have internal predecessors, (291), 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) [2021-10-13 01:08:53,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 291 transitions. [2021-10-13 01:08:53,219 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 291 transitions. Word has length 51 [2021-10-13 01:08:53,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:08:53,219 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 291 transitions. [2021-10-13 01:08:53,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2021-10-13 01:08:53,220 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 291 transitions. [2021-10-13 01:08:53,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-13 01:08:53,220 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:08:53,221 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-10-13 01:08:53,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-13 01:08:53,222 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:08:53,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:53,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1573662553, now seen corresponding path program 1 times [2021-10-13 01:08:53,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:53,223 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421553770] [2021-10-13 01:08:53,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:53,223 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:53,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:08:53,319 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:08:53,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:08:53,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421553770] [2021-10-13 01:08:53,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421553770] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:08:53,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839222798] [2021-10-13 01:08:53,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:53,322 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:08:53,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_138d99ad-f55c-4842-9d6b-9a1b05c8da75/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:53,326 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_138d99ad-f55c-4842-9d6b-9a1b05c8da75/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:08:53,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_138d99ad-f55c-4842-9d6b-9a1b05c8da75/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 01:08:53,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:08:53,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 01:08:53,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:08:53,681 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:08:53,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839222798] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:08:53,681 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:08:53,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-10-13 01:08:53,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697112896] [2021-10-13 01:08:53,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 01:08:53,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:08:53,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 01:08:53,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:08:53,683 INFO L87 Difference]: Start difference. First operand 218 states and 291 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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) [2021-10-13 01:08:53,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:08:53,961 INFO L93 Difference]: Finished difference Result 618 states and 840 transitions. [2021-10-13 01:08:53,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 01:08:53,961 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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) Word has length 52 [2021-10-13 01:08:53,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:08:53,964 INFO L225 Difference]: With dead ends: 618 [2021-10-13 01:08:53,964 INFO L226 Difference]: Without dead ends: 454 [2021-10-13 01:08:53,965 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 52.4ms TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-10-13 01:08:53,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2021-10-13 01:08:53,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 266. [2021-10-13 01:08:53,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.3396226415094339) internal successors, (355), 265 states have internal predecessors, (355), 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) [2021-10-13 01:08:53,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 355 transitions. [2021-10-13 01:08:53,998 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 355 transitions. Word has length 52 [2021-10-13 01:08:53,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:08:53,998 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 355 transitions. [2021-10-13 01:08:53,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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) [2021-10-13 01:08:53,998 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 355 transitions. [2021-10-13 01:08:53,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-10-13 01:08:53,999 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:08:53,999 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-13 01:08:54,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_138d99ad-f55c-4842-9d6b-9a1b05c8da75/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:54,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_138d99ad-f55c-4842-9d6b-9a1b05c8da75/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:08:54,218 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:08:54,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:54,218 INFO L82 PathProgramCache]: Analyzing trace with hash -5787080, now seen corresponding path program 2 times [2021-10-13 01:08:54,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:54,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909858699] [2021-10-13 01:08:54,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:54,219 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:08:54,359 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-13 01:08:54,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:08:54,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909858699] [2021-10-13 01:08:54,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909858699] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:08:54,360 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:08:54,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 01:08:54,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303884729] [2021-10-13 01:08:54,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 01:08:54,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:08:54,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 01:08:54,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:08:54,362 INFO L87 Difference]: Start difference. First operand 266 states and 355 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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) [2021-10-13 01:08:54,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:08:54,660 INFO L93 Difference]: Finished difference Result 794 states and 1075 transitions. [2021-10-13 01:08:54,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 01:08:54,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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) Word has length 73 [2021-10-13 01:08:54,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:08:54,664 INFO L225 Difference]: With dead ends: 794 [2021-10-13 01:08:54,664 INFO L226 Difference]: Without dead ends: 575 [2021-10-13 01:08:54,665 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.5ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:08:54,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2021-10-13 01:08:54,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 370. [2021-10-13 01:08:54,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 369 states have (on average 1.3360433604336044) internal successors, (493), 369 states have internal predecessors, (493), 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) [2021-10-13 01:08:54,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 493 transitions. [2021-10-13 01:08:54,725 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 493 transitions. Word has length 73 [2021-10-13 01:08:54,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:08:54,725 INFO L470 AbstractCegarLoop]: Abstraction has 370 states and 493 transitions. [2021-10-13 01:08:54,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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) [2021-10-13 01:08:54,726 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 493 transitions. [2021-10-13 01:08:54,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-10-13 01:08:54,727 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:08:54,727 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-13 01:08:54,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-13 01:08:54,728 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:08:54,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:54,728 INFO L82 PathProgramCache]: Analyzing trace with hash 268972534, now seen corresponding path program 1 times [2021-10-13 01:08:54,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:54,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851294213] [2021-10-13 01:08:54,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:54,733 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:08:54,818 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-13 01:08:54,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:08:54,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851294213] [2021-10-13 01:08:54,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851294213] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:08:54,818 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:08:54,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 01:08:54,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956592965] [2021-10-13 01:08:54,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 01:08:54,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:08:54,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 01:08:54,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:08:54,821 INFO L87 Difference]: Start difference. First operand 370 states and 493 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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) [2021-10-13 01:08:54,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:08:54,953 INFO L93 Difference]: Finished difference Result 768 states and 1024 transitions. [2021-10-13 01:08:54,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 01:08:54,954 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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) Word has length 73 [2021-10-13 01:08:54,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:08:54,954 INFO L225 Difference]: With dead ends: 768 [2021-10-13 01:08:54,955 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 01:08:54,956 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 52.0ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-10-13 01:08:54,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 01:08:54,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 01:08:54,956 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) [2021-10-13 01:08:54,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 01:08:54,957 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2021-10-13 01:08:54,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:08:54,957 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:08:54,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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) [2021-10-13 01:08:54,958 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 01:08:54,958 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 01:08:54,960 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 01:08:54,961 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 01:08:54,961 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 01:08:54,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-13 01:08:54,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 01:08:54,968 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:54,974 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:55,054 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:55,056 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:55,483 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:55,547 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:56,040 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:56,410 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:56,740 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:56,740 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:56,741 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:56,742 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:56,742 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:56,743 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:56,743 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:56,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:56,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:56,745 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:56,746 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:56,746 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:56,893 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:57,020 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:57,021 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:57,022 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:57,022 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:57,023 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:57,023 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:57,182 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:57,183 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:57,458 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:57,459 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:57,460 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:57,469 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:57,471 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:57,472 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:57,473 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:57,491 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:57,492 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:57,504 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:57,505 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:57,513 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:57,513 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:57,514 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:08:57,525 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:09:03,259 INFO L853 garLoopResultBuilder]: At program point L828-2(lines 828 842) the Hoare annotation is: false [2021-10-13 01:09:03,259 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 955) no Hoare annotation was computed. [2021-10-13 01:09:03,259 INFO L853 garLoopResultBuilder]: At program point L168(lines 167 186) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ULTIMATE.start_main_~tmp~8 1)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~waterLevel~0 1)) (and .cse0 .cse1 .cse2 (<= 2 ~waterLevel~0) .cse3) (and .cse0 .cse2 (<= 1 ~waterLevel~0) .cse3 (not (= 0 ~systemActive~0))))) [2021-10-13 01:09:03,260 INFO L857 garLoopResultBuilder]: For program point L168-1(lines 168 174) no Hoare annotation was computed. [2021-10-13 01:09:03,260 INFO L853 garLoopResultBuilder]: At program point L168-2(lines 167 186) the Hoare annotation is: false [2021-10-13 01:09:03,260 INFO L853 garLoopResultBuilder]: At program point L168-3(lines 167 186) the Hoare annotation is: false [2021-10-13 01:09:03,261 INFO L857 garLoopResultBuilder]: For program point L829(line 829) no Hoare annotation was computed. [2021-10-13 01:09:03,262 INFO L853 garLoopResultBuilder]: At program point L334(lines 319 337) the Hoare annotation is: false [2021-10-13 01:09:03,262 INFO L853 garLoopResultBuilder]: At program point L334-1(lines 319 337) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_main_~tmp~8 1)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1)) (.cse4 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 (<= 2 ~waterLevel~0) (= ULTIMATE.start_isHighWaterLevel_~tmp~2 0) .cse3 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse4) (and .cse0 .cse1 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 0) .cse2 (= |ULTIMATE.start_isHighWaterLevel_#res| 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1) (<= 1 ~waterLevel~0) .cse3 (= ULTIMATE.start_isHighWaterLevel_~tmp~2 1) .cse4))) [2021-10-13 01:09:03,262 INFO L853 garLoopResultBuilder]: At program point L334-2(lines 319 337) the Hoare annotation is: false [2021-10-13 01:09:03,262 INFO L853 garLoopResultBuilder]: At program point L334-3(lines 319 337) the Hoare annotation is: false [2021-10-13 01:09:03,262 INFO L853 garLoopResultBuilder]: At program point L334-4(lines 319 337) the Hoare annotation is: false [2021-10-13 01:09:03,263 INFO L853 garLoopResultBuilder]: At program point L334-5(lines 319 337) the Hoare annotation is: false [2021-10-13 01:09:03,263 INFO L857 garLoopResultBuilder]: For program point L402(lines 402 408) no Hoare annotation was computed. [2021-10-13 01:09:03,263 INFO L853 garLoopResultBuilder]: At program point L402-1(lines 402 408) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ULTIMATE.start_main_~tmp~8 1)) (.cse3 (<= 2 ~waterLevel~0)) (.cse4 (= |ULTIMATE.start_valid_product_#res| 1)) (.cse5 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse4 (= ~waterLevel~0 1) .cse5) (and .cse0 .cse1 .cse2 (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9) (<= 1 ~waterLevel~0) .cse4 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and .cse0 .cse2 .cse3 .cse4 .cse5))) [2021-10-13 01:09:03,264 INFO L857 garLoopResultBuilder]: For program point L204(lines 204 212) no Hoare annotation was computed. [2021-10-13 01:09:03,264 INFO L857 garLoopResultBuilder]: For program point L204-1(lines 204 212) no Hoare annotation was computed. [2021-10-13 01:09:03,264 INFO L853 garLoopResultBuilder]: At program point L138(lines 129 142) the Hoare annotation is: false [2021-10-13 01:09:03,265 INFO L857 garLoopResultBuilder]: For program point L204-2(lines 204 212) no Hoare annotation was computed. [2021-10-13 01:09:03,265 INFO L853 garLoopResultBuilder]: At program point L138-1(lines 129 142) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_main_~tmp~8 1)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1)) (.cse4 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 (<= 2 ~waterLevel~0) .cse3 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse4) (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1) (<= 1 ~waterLevel~0) .cse3 .cse4))) [2021-10-13 01:09:03,265 INFO L857 garLoopResultBuilder]: For program point L204-3(lines 204 212) no Hoare annotation was computed. [2021-10-13 01:09:03,265 INFO L853 garLoopResultBuilder]: At program point L138-2(lines 129 142) the Hoare annotation is: false [2021-10-13 01:09:03,266 INFO L857 garLoopResultBuilder]: For program point L204-4(lines 204 212) no Hoare annotation was computed. [2021-10-13 01:09:03,266 INFO L853 garLoopResultBuilder]: At program point L138-3(lines 129 142) the Hoare annotation is: false [2021-10-13 01:09:03,266 INFO L857 garLoopResultBuilder]: For program point L204-5(lines 204 212) no Hoare annotation was computed. [2021-10-13 01:09:03,266 INFO L853 garLoopResultBuilder]: At program point L138-4(lines 129 142) the Hoare annotation is: false [2021-10-13 01:09:03,267 INFO L853 garLoopResultBuilder]: At program point L138-5(lines 129 142) the Hoare annotation is: false [2021-10-13 01:09:03,268 INFO L857 garLoopResultBuilder]: For program point L832(lines 832 836) no Hoare annotation was computed. [2021-10-13 01:09:03,268 INFO L857 garLoopResultBuilder]: For program point L832-1(lines 168 174) no Hoare annotation was computed. [2021-10-13 01:09:03,269 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 955) no Hoare annotation was computed. [2021-10-13 01:09:03,269 INFO L853 garLoopResultBuilder]: At program point L175(lines 175 181) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_main_~tmp~8 1)) (.cse2 (<= 2 ~waterLevel~0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp~2 0) .cse3 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (not (= 0 ~systemActive~0))) (and .cse0 .cse4 .cse1 .cse3 (= ~waterLevel~0 1)) (and .cse0 .cse4 .cse1 .cse2 .cse3))) [2021-10-13 01:09:03,269 INFO L853 garLoopResultBuilder]: At program point L175-1(lines 175 181) the Hoare annotation is: false [2021-10-13 01:09:03,271 INFO L853 garLoopResultBuilder]: At program point L175-2(lines 175 181) the Hoare annotation is: false [2021-10-13 01:09:03,271 INFO L857 garLoopResultBuilder]: For program point L968(lines 968 981) no Hoare annotation was computed. [2021-10-13 01:09:03,272 INFO L853 garLoopResultBuilder]: At program point L968-1(lines 1 984) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ULTIMATE.start_main_~tmp~8 1)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1)) (.cse4 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~waterLevel~0 1) .cse4) (and .cse0 .cse1 .cse2 (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9) (<= 1 ~waterLevel~0) .cse3 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and .cse0 .cse2 (<= 2 ~waterLevel~0) (<= 2 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9) (= ULTIMATE.start_isHighWaterLevel_~tmp~2 0) .cse3 (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse4))) [2021-10-13 01:09:03,272 INFO L857 garLoopResultBuilder]: For program point L902(lines 902 909) no Hoare annotation was computed. [2021-10-13 01:09:03,272 INFO L857 garLoopResultBuilder]: For program point L968-2(lines 968 981) no Hoare annotation was computed. [2021-10-13 01:09:03,272 INFO L853 garLoopResultBuilder]: At program point L968-3(lines 1 984) the Hoare annotation is: false [2021-10-13 01:09:03,272 INFO L860 garLoopResultBuilder]: At program point L902-1(lines 902 909) the Hoare annotation is: true [2021-10-13 01:09:03,272 INFO L857 garLoopResultBuilder]: For program point L968-4(lines 968 981) no Hoare annotation was computed. [2021-10-13 01:09:03,273 INFO L853 garLoopResultBuilder]: At program point L968-5(lines 1 984) the Hoare annotation is: false [2021-10-13 01:09:03,273 INFO L853 garLoopResultBuilder]: At program point L442(lines 391 443) the Hoare annotation is: false [2021-10-13 01:09:03,273 INFO L853 garLoopResultBuilder]: At program point L938(lines 1 984) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2021-10-13 01:09:03,273 INFO L857 garLoopResultBuilder]: For program point L80(lines 80 84) no Hoare annotation was computed. [2021-10-13 01:09:03,273 INFO L857 garLoopResultBuilder]: For program point L972(lines 972 978) no Hoare annotation was computed. [2021-10-13 01:09:03,273 INFO L857 garLoopResultBuilder]: For program point L972-2(lines 972 978) no Hoare annotation was computed. [2021-10-13 01:09:03,274 INFO L857 garLoopResultBuilder]: For program point L972-4(lines 972 978) no Hoare annotation was computed. [2021-10-13 01:09:03,274 INFO L853 garLoopResultBuilder]: At program point L279(lines 274 282) the Hoare annotation is: false [2021-10-13 01:09:03,274 INFO L853 garLoopResultBuilder]: At program point L279-1(lines 274 282) the Hoare annotation is: false [2021-10-13 01:09:03,274 INFO L853 garLoopResultBuilder]: At program point L279-2(lines 274 282) the Hoare annotation is: false [2021-10-13 01:09:03,274 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 418) no Hoare annotation was computed. [2021-10-13 01:09:03,274 INFO L853 garLoopResultBuilder]: At program point L412-1(lines 412 418) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ULTIMATE.start_main_~tmp~8 1)) (.cse3 (<= 2 ~waterLevel~0)) (.cse4 (= |ULTIMATE.start_valid_product_#res| 1)) (.cse5 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse4 (= ~waterLevel~0 1) .cse5) (and .cse0 .cse1 .cse2 (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9) (<= 1 ~waterLevel~0) .cse4 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and .cse0 .cse2 .cse3 .cse4 .cse5))) [2021-10-13 01:09:03,275 INFO L853 garLoopResultBuilder]: At program point L148(lines 143 151) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= ULTIMATE.start_main_~tmp~8 1) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| 1) (not (= 0 ~systemActive~0))) [2021-10-13 01:09:03,275 INFO L853 garLoopResultBuilder]: At program point L148-1(lines 143 151) the Hoare annotation is: false [2021-10-13 01:09:03,275 INFO L853 garLoopResultBuilder]: At program point L148-2(lines 143 151) the Hoare annotation is: false [2021-10-13 01:09:03,275 INFO L857 garLoopResultBuilder]: For program point L347(lines 347 351) no Hoare annotation was computed. [2021-10-13 01:09:03,276 INFO L857 garLoopResultBuilder]: For program point L347-2(lines 347 351) no Hoare annotation was computed. [2021-10-13 01:09:03,276 INFO L857 garLoopResultBuilder]: For program point L347-3(lines 347 351) no Hoare annotation was computed. [2021-10-13 01:09:03,276 INFO L857 garLoopResultBuilder]: For program point L347-5(lines 347 351) no Hoare annotation was computed. [2021-10-13 01:09:03,276 INFO L857 garLoopResultBuilder]: For program point L347-6(lines 347 351) no Hoare annotation was computed. [2021-10-13 01:09:03,277 INFO L857 garLoopResultBuilder]: For program point L347-8(lines 347 351) no Hoare annotation was computed. [2021-10-13 01:09:03,277 INFO L853 garLoopResultBuilder]: At program point L876(lines 872 878) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ULTIMATE.start_main_~tmp~8 1) (= |ULTIMATE.start_valid_product_#res| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2021-10-13 01:09:03,277 INFO L860 garLoopResultBuilder]: At program point L911(lines 892 914) the Hoare annotation is: true [2021-10-13 01:09:03,277 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 01:09:03,280 INFO L853 garLoopResultBuilder]: At program point L946(lines 941 949) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2021-10-13 01:09:03,280 INFO L853 garLoopResultBuilder]: At program point L353(lines 338 356) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 0) (= ULTIMATE.start_isLowWaterLevel_~tmp~3 0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= ULTIMATE.start_main_~tmp~8 1) (not (= |ULTIMATE.start_isLowWaterLevel_#res| 0)) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| 1) (not (= ULTIMATE.start_isLowWaterLevel_~tmp___0~1 0)) (not (= 0 ~systemActive~0))) [2021-10-13 01:09:03,280 INFO L853 garLoopResultBuilder]: At program point L353-1(lines 338 356) the Hoare annotation is: false [2021-10-13 01:09:03,280 INFO L853 garLoopResultBuilder]: At program point L353-2(lines 338 356) the Hoare annotation is: false [2021-10-13 01:09:03,281 INFO L857 garLoopResultBuilder]: For program point L56(lines 56 60) no Hoare annotation was computed. [2021-10-13 01:09:03,281 INFO L857 garLoopResultBuilder]: For program point L56-3(lines 56 60) no Hoare annotation was computed. [2021-10-13 01:09:03,281 INFO L857 garLoopResultBuilder]: For program point L56-6(lines 56 60) no Hoare annotation was computed. [2021-10-13 01:09:03,281 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 01:09:03,281 INFO L857 garLoopResultBuilder]: For program point L422(lines 422 437) no Hoare annotation was computed. [2021-10-13 01:09:03,281 INFO L853 garLoopResultBuilder]: At program point L125(lines 120 128) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ULTIMATE.start_main_~tmp~8 1)) (.cse2 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0) .cse2 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and .cse0 .cse1 (<= 2 ~waterLevel~0) (= ULTIMATE.start_isHighWaterLevel_~tmp~2 0) .cse2 (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (not (= 0 ~systemActive~0))))) [2021-10-13 01:09:03,282 INFO L853 garLoopResultBuilder]: At program point L125-1(lines 120 128) the Hoare annotation is: false [2021-10-13 01:09:03,282 INFO L853 garLoopResultBuilder]: At program point L125-2(lines 120 128) the Hoare annotation is: false [2021-10-13 01:09:03,282 INFO L857 garLoopResultBuilder]: For program point L226(lines 226 243) no Hoare annotation was computed. [2021-10-13 01:09:03,282 INFO L857 garLoopResultBuilder]: For program point L226-1(lines 226 243) no Hoare annotation was computed. [2021-10-13 01:09:03,283 INFO L857 garLoopResultBuilder]: For program point L226-2(lines 226 243) no Hoare annotation was computed. [2021-10-13 01:09:03,283 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 01:09:03,284 INFO L857 garLoopResultBuilder]: For program point L393(lines 392 441) no Hoare annotation was computed. [2021-10-13 01:09:03,284 INFO L857 garLoopResultBuilder]: For program point L955(line 955) no Hoare annotation was computed. [2021-10-13 01:09:03,284 INFO L857 garLoopResultBuilder]: For program point L955-1(line 955) no Hoare annotation was computed. [2021-10-13 01:09:03,285 INFO L857 garLoopResultBuilder]: For program point L955-2(line 955) no Hoare annotation was computed. [2021-10-13 01:09:03,285 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 398) no Hoare annotation was computed. [2021-10-13 01:09:03,285 INFO L857 garLoopResultBuilder]: For program point L361(lines 361 367) no Hoare annotation was computed. [2021-10-13 01:09:03,285 INFO L853 garLoopResultBuilder]: At program point L361-1(lines 361 367) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_main_~tmp~8 1)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~waterLevel~0 1)) (and .cse0 .cse1 .cse2 (<= 2 ~waterLevel~0) .cse3))) [2021-10-13 01:09:03,285 INFO L857 garLoopResultBuilder]: For program point L328(lines 328 332) no Hoare annotation was computed. [2021-10-13 01:09:03,285 INFO L857 garLoopResultBuilder]: For program point L328-2(lines 328 332) no Hoare annotation was computed. [2021-10-13 01:09:03,286 INFO L857 garLoopResultBuilder]: For program point L328-3(lines 328 332) no Hoare annotation was computed. [2021-10-13 01:09:03,286 INFO L857 garLoopResultBuilder]: For program point L328-5(lines 328 332) no Hoare annotation was computed. [2021-10-13 01:09:03,286 INFO L857 garLoopResultBuilder]: For program point L328-6(lines 328 332) no Hoare annotation was computed. [2021-10-13 01:09:03,286 INFO L857 garLoopResultBuilder]: For program point L328-8(lines 328 332) no Hoare annotation was computed. [2021-10-13 01:09:03,286 INFO L857 garLoopResultBuilder]: For program point L328-9(lines 328 332) no Hoare annotation was computed. [2021-10-13 01:09:03,286 INFO L857 garLoopResultBuilder]: For program point L328-11(lines 328 332) no Hoare annotation was computed. [2021-10-13 01:09:03,286 INFO L857 garLoopResultBuilder]: For program point L328-12(lines 328 332) no Hoare annotation was computed. [2021-10-13 01:09:03,294 INFO L857 garLoopResultBuilder]: For program point L328-14(lines 328 332) no Hoare annotation was computed. [2021-10-13 01:09:03,294 INFO L857 garLoopResultBuilder]: For program point L328-15(lines 328 332) no Hoare annotation was computed. [2021-10-13 01:09:03,294 INFO L857 garLoopResultBuilder]: For program point L328-17(lines 328 332) no Hoare annotation was computed. [2021-10-13 01:09:03,295 INFO L857 garLoopResultBuilder]: For program point L230(lines 230 238) no Hoare annotation was computed. [2021-10-13 01:09:03,295 INFO L857 garLoopResultBuilder]: For program point L230-1(lines 230 238) no Hoare annotation was computed. [2021-10-13 01:09:03,295 INFO L857 garLoopResultBuilder]: For program point L230-2(lines 230 238) no Hoare annotation was computed. [2021-10-13 01:09:03,298 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 01:09:03,298 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 955) no Hoare annotation was computed. [2021-10-13 01:09:03,299 INFO L857 garLoopResultBuilder]: For program point L430(lines 430 436) no Hoare annotation was computed. [2021-10-13 01:09:03,299 INFO L853 garLoopResultBuilder]: At program point L430-1(lines 168 174) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ULTIMATE.start_main_~tmp~8 1)) (.cse4 (<= 2 ~waterLevel~0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~waterLevel~0 1)) (and .cse0 .cse1 .cse2 .cse4 .cse3) (and .cse0 .cse2 .cse4 .cse3 (not (= 0 ~systemActive~0))))) [2021-10-13 01:09:03,299 INFO L857 garLoopResultBuilder]: For program point L133(lines 133 139) no Hoare annotation was computed. [2021-10-13 01:09:03,299 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 133 139) no Hoare annotation was computed. [2021-10-13 01:09:03,299 INFO L857 garLoopResultBuilder]: For program point L133-2(lines 133 139) no Hoare annotation was computed. [2021-10-13 01:09:03,299 INFO L857 garLoopResultBuilder]: For program point L133-3(lines 133 139) no Hoare annotation was computed. [2021-10-13 01:09:03,300 INFO L857 garLoopResultBuilder]: For program point L133-4(lines 133 139) no Hoare annotation was computed. [2021-10-13 01:09:03,300 INFO L857 garLoopResultBuilder]: For program point L133-5(lines 133 139) no Hoare annotation was computed. [2021-10-13 01:09:03,300 INFO L857 garLoopResultBuilder]: For program point L200(lines 200 217) no Hoare annotation was computed. [2021-10-13 01:09:03,300 INFO L857 garLoopResultBuilder]: For program point L200-1(lines 200 217) no Hoare annotation was computed. [2021-10-13 01:09:03,300 INFO L857 garLoopResultBuilder]: For program point L200-2(lines 200 217) no Hoare annotation was computed. [2021-10-13 01:09:03,302 INFO L857 garLoopResultBuilder]: For program point L200-3(lines 200 217) no Hoare annotation was computed. [2021-10-13 01:09:03,302 INFO L857 garLoopResultBuilder]: For program point L68(lines 68 72) no Hoare annotation was computed. [2021-10-13 01:09:03,302 INFO L857 garLoopResultBuilder]: For program point L200-4(lines 200 217) no Hoare annotation was computed. [2021-10-13 01:09:03,302 INFO L857 garLoopResultBuilder]: For program point L200-5(lines 200 217) no Hoare annotation was computed. [2021-10-13 01:09:03,308 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 01:09:03,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 01:09:03 BoogieIcfgContainer [2021-10-13 01:09:03,340 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 01:09:03,341 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:09:03,341 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:09:03,341 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:09:03,342 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:08:50" (3/4) ... [2021-10-13 01:09:03,345 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 01:09:03,367 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-10-13 01:09:03,368 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-10-13 01:09:03,369 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-13 01:09:03,371 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-13 01:09:03,372 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-13 01:09:03,373 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 01:09:03,374 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 01:09:03,401 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && \result == 1) && waterLevel == 1) && !(0 == systemActive) [2021-10-13 01:09:03,401 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && tmp == 1) && \result == 1) && waterLevel == 1) && !(0 == systemActive) [2021-10-13 01:09:03,402 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && waterLevel == 1) && !(0 == systemActive)) || ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 1 <= tmp) && 1 <= waterLevel) && \result == 1) && 1 <= \result)) || ((((((((splverifierCounter == 0 && tmp == 1) && 2 <= waterLevel) && 2 <= tmp) && tmp == 0) && \result == 1) && 2 <= \result) && \result == 0) && !(0 == systemActive)) [2021-10-13 01:09:03,402 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && \result == 1) || (((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && waterLevel == 1) && !(0 == systemActive))) || ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 1 <= tmp) && 1 <= waterLevel) && \result == 1) && 1 <= \result)) || ((((splverifierCounter == 0 && tmp == 1) && 2 <= waterLevel) && \result == 1) && !(0 == systemActive)) [2021-10-13 01:09:03,403 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && \result == 1) || (((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && waterLevel == 1) && !(0 == systemActive))) || ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 1 <= tmp) && 1 <= waterLevel) && \result == 1) && 1 <= \result)) || ((((splverifierCounter == 0 && tmp == 1) && 2 <= waterLevel) && \result == 1) && !(0 == systemActive)) [2021-10-13 01:09:03,403 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && waterLevel == 1) || ((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && \result == 1)) || ((((splverifierCounter == 0 && tmp == 1) && 2 <= waterLevel) && \result == 1) && !(0 == systemActive)) [2021-10-13 01:09:03,404 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && waterLevel == 1) || ((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && \result == 1)) || ((((splverifierCounter == 0 && tmp == 1) && 1 <= waterLevel) && \result == 1) && !(0 == systemActive)) [2021-10-13 01:09:03,404 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((splverifierCounter == 0 && tmp == 1) && 2 <= waterLevel) && tmp == 0) && \result == 1) && \result == 0) && !(0 == systemActive)) || ((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && waterLevel == 1)) || ((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && \result == 1) [2021-10-13 01:09:03,404 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && waterLevel == 1) || ((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && \result == 1) [2021-10-13 01:09:03,405 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 1 <= waterLevel) && \result == 1) && 1 <= \result) || (((((((splverifierCounter == 0 && tmp == 1) && 2 <= waterLevel) && tmp == 0) && \result == 1) && 2 <= \result) && \result == 0) && !(0 == systemActive)) [2021-10-13 01:09:03,406 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0 && \result == 0) && tmp == 1) && 1 <= waterLevel) && \result == 1) && !(0 == systemActive) [2021-10-13 01:09:03,407 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && \result == 1) && \result == 0) && !(0 == systemActive)) || ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && 1 <= waterLevel) && \result == 1) && !(0 == systemActive)) [2021-10-13 01:09:03,408 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((splverifierCounter == 0 && tmp == 0) && \result == 0) && tmp == 1) && !(\result == 0)) && 1 <= waterLevel) && \result == 1) && !(tmp___0 == 0)) && !(0 == systemActive) [2021-10-13 01:09:03,409 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && tmp == 0) && \result == 1) && \result == 0) && !(0 == systemActive)) || (((((((((splverifierCounter == 0 && pumpRunning == 0) && tmp___0 == 0) && tmp == 1) && \result == 0) && \result == 1) && 1 <= waterLevel) && \result == 1) && tmp == 1) && !(0 == systemActive)) [2021-10-13 01:09:03,484 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_138d99ad-f55c-4842-9d6b-9a1b05c8da75/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 01:09:03,484 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:09:03,486 INFO L168 Benchmark]: Toolchain (without parser) took 14802.58 ms. Allocated memory was 102.8 MB in the beginning and 224.4 MB in the end (delta: 121.6 MB). Free memory was 69.0 MB in the beginning and 117.1 MB in the end (delta: -48.0 MB). Peak memory consumption was 74.3 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:03,487 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 102.8 MB. Free memory is still 56.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:09:03,487 INFO L168 Benchmark]: CACSL2BoogieTranslator took 523.54 ms. Allocated memory is still 102.8 MB. Free memory was 68.8 MB in the beginning and 69.8 MB in the end (delta: -997.9 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:03,488 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.07 ms. Allocated memory is still 102.8 MB. Free memory was 69.8 MB in the beginning and 66.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:03,488 INFO L168 Benchmark]: Boogie Preprocessor took 45.26 ms. Allocated memory is still 102.8 MB. Free memory was 66.0 MB in the beginning and 63.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:03,489 INFO L168 Benchmark]: RCFGBuilder took 1116.81 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 63.5 MB in the beginning and 71.5 MB in the end (delta: -8.0 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:03,489 INFO L168 Benchmark]: TraceAbstraction took 12868.77 ms. Allocated memory was 123.7 MB in the beginning and 224.4 MB in the end (delta: 100.7 MB). Free memory was 70.9 MB in the beginning and 127.6 MB in the end (delta: -56.6 MB). Peak memory consumption was 111.2 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:03,489 INFO L168 Benchmark]: Witness Printer took 143.89 ms. Allocated memory is still 224.4 MB. Free memory was 127.6 MB in the beginning and 117.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:03,492 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 102.8 MB. Free memory is still 56.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 523.54 ms. Allocated memory is still 102.8 MB. Free memory was 68.8 MB in the beginning and 69.8 MB in the end (delta: -997.9 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 98.07 ms. Allocated memory is still 102.8 MB. Free memory was 69.8 MB in the beginning and 66.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.26 ms. Allocated memory is still 102.8 MB. Free memory was 66.0 MB in the beginning and 63.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1116.81 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 63.5 MB in the beginning and 71.5 MB in the end (delta: -8.0 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12868.77 ms. Allocated memory was 123.7 MB in the beginning and 224.4 MB in the end (delta: 100.7 MB). Free memory was 70.9 MB in the beginning and 127.6 MB in the end (delta: -56.6 MB). Peak memory consumption was 111.2 MB. Max. memory is 16.1 GB. * Witness Printer took 143.89 ms. Allocated memory is still 224.4 MB. Free memory was 127.6 MB in the beginning and 117.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 955]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 955]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 955]: 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 1 procedures, 119 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 12776.2ms, OverallIterations: 14, TraceHistogramMax: 3, EmptinessCheckTime: 33.0ms, AutomataDifference: 1760.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 8296.6ms, InitialAbstractionConstructionTime: 13.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1594 SDtfs, 2108 SDslu, 2269 SDs, 0 SdLazy, 367 SolverSat, 75 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 705.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 156 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 331.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=370occurred in iteration=13, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 360.7ms AutomataMinimizationTime, 14 MinimizatonAttempts, 1366 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 44 LocationsWithAnnotation, 44 PreInvPairs, 209 NumberOfFragments, 687 HoareAnnotationTreeSize, 44 FomulaSimplifications, 1523752 FormulaSimplificationTreeSizeReduction, 2558.3ms HoareSimplificationTime, 44 FomulaSimplificationsInter, 723569 FormulaSimplificationTreeSizeReductionInter, 5709.2ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 86.3ms SsaConstructionTime, 553.1ms SatisfiabilityAnalysisTime, 1048.6ms InterpolantComputationTime, 575 NumberOfCodeBlocks, 575 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 560 ConstructedInterpolants, 0 QuantifiedInterpolants, 941 SizeOfPredicates, 3 NumberOfNonLiveVariables, 425 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 15 InterpolantComputations, 13 PerfectInterpolantSequences, 148/154 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 3 specifications checked. All of them hold - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && \result == 1) && \result == 0) && !(0 == systemActive)) || ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && 1 <= waterLevel) && \result == 1) && !(0 == systemActive)) - InvariantResult [Line: 338]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0 && tmp == 1) && 2 <= waterLevel) && tmp == 0) && \result == 1) && \result == 0) && !(0 == systemActive)) || ((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && waterLevel == 1)) || ((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && \result == 1) - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && waterLevel == 1) || ((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && \result == 1)) || ((((splverifierCounter == 0 && tmp == 1) && 1 <= waterLevel) && \result == 1) && !(0 == systemActive)) - InvariantResult [Line: 319]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && tmp == 0) && \result == 1) && \result == 0) && !(0 == systemActive)) || (((((((((splverifierCounter == 0 && pumpRunning == 0) && tmp___0 == 0) && tmp == 1) && \result == 0) && \result == 1) && 1 <= waterLevel) && \result == 1) && tmp == 1) && !(0 == systemActive)) - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && \result == 1) || (((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && waterLevel == 1) && !(0 == systemActive))) || ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 1 <= tmp) && 1 <= waterLevel) && \result == 1) && 1 <= \result)) || ((((splverifierCounter == 0 && tmp == 1) && 2 <= waterLevel) && \result == 1) && !(0 == systemActive)) - InvariantResult [Line: 168]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && waterLevel == 1) || ((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && \result == 1)) || ((((splverifierCounter == 0 && tmp == 1) && 2 <= waterLevel) && \result == 1) && !(0 == systemActive)) - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 319]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 120]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 902]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 361]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && waterLevel == 1) || ((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && \result == 1) - InvariantResult [Line: 120]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 1 <= waterLevel) && \result == 1) && 1 <= \result) || (((((((splverifierCounter == 0 && tmp == 1) && 2 <= waterLevel) && tmp == 0) && \result == 1) && 2 <= \result) && \result == 0) && !(0 == systemActive)) - InvariantResult [Line: 319]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 274]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 120]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 338]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && waterLevel == 1) && !(0 == systemActive)) || ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 1 <= tmp) && 1 <= waterLevel) && \result == 1) && 1 <= \result)) || ((((((((splverifierCounter == 0 && tmp == 1) && 2 <= waterLevel) && 2 <= tmp) && tmp == 0) && \result == 1) && 2 <= \result) && \result == 0) && !(0 == systemActive)) - InvariantResult [Line: 892]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 412]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && \result == 1) || (((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && waterLevel == 1) && !(0 == systemActive))) || ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 1 <= tmp) && 1 <= waterLevel) && \result == 1) && 1 <= \result)) || ((((splverifierCounter == 0 && tmp == 1) && 2 <= waterLevel) && \result == 1) && !(0 == systemActive)) - InvariantResult [Line: 941]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && \result == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 274]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && tmp == 1) && \result == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 391]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 338]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0 && tmp == 0) && \result == 0) && tmp == 1) && !(\result == 0)) && 1 <= waterLevel) && \result == 1) && !(tmp___0 == 0)) && !(0 == systemActive) - InvariantResult [Line: 319]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0 && \result == 0) && tmp == 1) && 1 <= waterLevel) && \result == 1) && !(0 == systemActive) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 319]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 274]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 319]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 828]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-10-13 01:09:03,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_138d99ad-f55c-4842-9d6b-9a1b05c8da75/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...