./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0870b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0870b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD --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 e0eb8afc8d7818fa0271ce015ce884b6780ab63de83244d090d51fa572cb54f7 ....................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0870b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD --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 e0eb8afc8d7818fa0271ce015ce884b6780ab63de83244d090d51fa572cb54f7 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:24:13,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:24:13,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:24:13,118 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:24:13,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:24:13,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:24:13,124 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:24:13,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:24:13,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:24:13,132 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:24:13,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:24:13,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:24:13,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:24:13,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:24:13,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:24:13,143 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:24:13,152 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:24:13,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:24:13,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:24:13,160 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:24:13,163 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:24:13,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:24:13,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:24:13,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:24:13,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:24:13,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:24:13,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:24:13,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:24:13,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:24:13,180 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:24:13,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:24:13,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:24:13,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:24:13,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:24:13,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:24:13,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:24:13,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:24:13,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:24:13,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:24:13,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:24:13,191 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:24:13,192 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:24:13,226 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:24:13,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:24:13,227 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:24:13,228 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:24:13,230 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:24:13,230 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:24:13,231 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:24:13,231 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:24:13,232 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:24:13,232 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:24:13,233 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:24:13,233 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:24:13,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:24:13,234 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:24:13,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:24:13,235 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:24:13,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:24:13,236 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:24:13,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:24:13,237 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:24:13,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:24:13,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:24:13,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:24:13,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:24:13,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:24:13,240 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:24:13,241 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:24:13,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:24:13,242 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:24:13,242 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:24:13,243 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:24:13,243 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:24:13,244 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_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0eb8afc8d7818fa0271ce015ce884b6780ab63de83244d090d51fa572cb54f7 [2021-10-28 23:24:13,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:24:13,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:24:13,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:24:13,604 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:24:13,605 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:24:13,607 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/float-newlib/double_req_bl_0870b.c [2021-10-28 23:24:13,712 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/data/fb5e6e421/ed8c8a7b1dc94ca3baa8bc3bdcfb6572/FLAG0ec0b0234 [2021-10-28 23:24:14,354 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:24:14,360 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/sv-benchmarks/c/float-newlib/double_req_bl_0870b.c [2021-10-28 23:24:14,383 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/data/fb5e6e421/ed8c8a7b1dc94ca3baa8bc3bdcfb6572/FLAG0ec0b0234 [2021-10-28 23:24:14,638 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/data/fb5e6e421/ed8c8a7b1dc94ca3baa8bc3bdcfb6572 [2021-10-28 23:24:14,642 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:24:14,646 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:24:14,656 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:24:14,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:24:14,663 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:24:14,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:24:14" (1/1) ... [2021-10-28 23:24:14,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@532da22a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:24:14, skipping insertion in model container [2021-10-28 23:24:14,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:24:14" (1/1) ... [2021-10-28 23:24:14,676 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:24:14,732 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:24:15,064 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:835) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:1686) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.lambda$41(StandardFunctionHandler.java:360) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1414) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1984) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1613) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1052) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1590) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1052) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1436) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3224) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2305) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:580) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-28 23:24:15,071 INFO L168 Benchmark]: Toolchain (without parser) took 423.62 ms. Allocated memory is still 140.5 MB. Free memory was 105.0 MB in the beginning and 114.9 MB in the end (delta: -9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:24:15,074 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 86.0 MB. Free memory was 58.7 MB in the beginning and 58.7 MB in the end (delta: 29.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:24:15,076 INFO L168 Benchmark]: CACSL2BoogieTranslator took 412.84 ms. Allocated memory is still 140.5 MB. Free memory was 105.0 MB in the beginning and 114.9 MB in the end (delta: -9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:24:15,079 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 86.0 MB. Free memory was 58.7 MB in the beginning and 58.7 MB in the end (delta: 29.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 412.84 ms. Allocated memory is still 140.5 MB. Free memory was 105.0 MB in the beginning and 114.9 MB in the end (delta: -9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:835) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:24:17,838 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:24:17,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:24:17,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:24:17,890 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:24:17,895 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:24:17,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:24:17,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:24:17,913 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:24:17,921 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:24:17,923 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:24:17,925 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:24:17,926 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:24:17,930 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:24:17,933 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:24:17,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:24:17,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:24:17,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:24:17,948 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:24:17,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:24:17,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:24:17,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:24:17,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:24:17,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:24:17,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:24:17,980 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:24:17,980 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:24:17,983 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:24:17,984 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:24:17,985 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:24:17,986 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:24:17,987 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:24:17,989 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:24:17,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:24:17,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:24:17,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:24:17,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:24:17,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:24:17,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:24:17,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:24:17,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:24:17,999 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-28 23:24:18,053 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:24:18,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:24:18,054 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:24:18,055 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:24:18,057 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:24:18,058 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:24:18,058 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:24:18,059 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:24:18,059 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:24:18,059 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:24:18,060 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:24:18,061 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:24:18,061 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:24:18,061 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:24:18,062 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:24:18,062 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:24:18,063 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:24:18,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:24:18,064 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:24:18,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:24:18,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:24:18,065 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:24:18,065 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:24:18,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:24:18,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:24:18,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:24:18,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:24:18,067 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:24:18,068 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:24:18,068 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:24:18,068 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:24:18,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:24:18,069 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:24:18,069 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:24:18,070 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0eb8afc8d7818fa0271ce015ce884b6780ab63de83244d090d51fa572cb54f7 [2021-10-28 23:24:18,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:24:18,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:24:18,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:24:18,607 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:24:18,608 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:24:18,609 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/float-newlib/double_req_bl_0870b.c [2021-10-28 23:24:18,691 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/data/ac88f89da/ca3becb1350e4181bf8db2a5e3c20aca/FLAG6bc893a60 [2021-10-28 23:24:19,400 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:24:19,401 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/sv-benchmarks/c/float-newlib/double_req_bl_0870b.c [2021-10-28 23:24:19,423 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/data/ac88f89da/ca3becb1350e4181bf8db2a5e3c20aca/FLAG6bc893a60 [2021-10-28 23:24:19,621 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/data/ac88f89da/ca3becb1350e4181bf8db2a5e3c20aca [2021-10-28 23:24:19,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:24:19,627 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:24:19,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:24:19,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:24:19,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:24:19,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:24:19" (1/1) ... [2021-10-28 23:24:19,639 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50bf1380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:24:19, skipping insertion in model container [2021-10-28 23:24:19,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:24:19" (1/1) ... [2021-10-28 23:24:19,650 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:24:19,720 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:24:20,220 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_d8cb3aaa-c4db-4511-8152-1c8393dc6736/sv-benchmarks/c/float-newlib/double_req_bl_0870b.c[14187,14200] [2021-10-28 23:24:20,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:24:20,247 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:24:20,473 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_d8cb3aaa-c4db-4511-8152-1c8393dc6736/sv-benchmarks/c/float-newlib/double_req_bl_0870b.c[14187,14200] [2021-10-28 23:24:20,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:24:20,503 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:24:20,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:24:20 WrapperNode [2021-10-28 23:24:20,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:24:20,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:24:20,506 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:24:20,506 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:24:20,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:24:20" (1/1) ... [2021-10-28 23:24:20,567 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:24:20" (1/1) ... [2021-10-28 23:24:20,673 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:24:20,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:24:20,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:24:20,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:24:20,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:24:20" (1/1) ... [2021-10-28 23:24:20,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:24:20" (1/1) ... [2021-10-28 23:24:20,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:24:20" (1/1) ... [2021-10-28 23:24:20,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:24:20" (1/1) ... [2021-10-28 23:24:20,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:24:20" (1/1) ... [2021-10-28 23:24:20,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:24:20" (1/1) ... [2021-10-28 23:24:20,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:24:20" (1/1) ... [2021-10-28 23:24:20,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:24:20,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:24:20,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:24:20,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:24:20,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:24:20" (1/1) ... [2021-10-28 23:24:20,891 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:24:20,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:24:20,927 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:24:20,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:24:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-28 23:24:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-28 23:24:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 23:24:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:24:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-10-28 23:24:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 23:24:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:24:20,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:24:20,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 23:24:20,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:25:21,716 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:25:21,716 INFO L299 CfgBuilder]: Removed 90 assume(true) statements. [2021-10-28 23:25:21,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:25:21 BoogieIcfgContainer [2021-10-28 23:25:21,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:25:21,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:25:21,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:25:21,727 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:25:21,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:24:19" (1/3) ... [2021-10-28 23:25:21,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ede08af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:25:21, skipping insertion in model container [2021-10-28 23:25:21,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:24:20" (2/3) ... [2021-10-28 23:25:21,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ede08af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:25:21, skipping insertion in model container [2021-10-28 23:25:21,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:25:21" (3/3) ... [2021-10-28 23:25:21,731 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0870b.c [2021-10-28 23:25:21,738 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:25:21,738 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:25:21,805 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:25:21,813 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:25:21,813 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 23:25:21,841 INFO L276 IsEmpty]: Start isEmpty. Operand has 213 states, 211 states have (on average 1.7203791469194314) internal successors, (363), 212 states have internal predecessors, (363), 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) [2021-10-28 23:25:21,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 23:25:21,848 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:25:21,849 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:25:21,849 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:25:21,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:21,857 INFO L85 PathProgramCache]: Analyzing trace with hash 484704243, now seen corresponding path program 1 times [2021-10-28 23:25:21,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:25:21,876 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1985738737] [2021-10-28 23:25:21,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:21,878 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:25:21,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:25:21,891 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:25:21,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:25:22,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:22,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-28 23:25:22,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:25:22,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:22,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:25:23,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:23,153 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:25:23,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1985738737] [2021-10-28 23:25:23,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1985738737] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:25:23,155 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:25:23,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 23:25:23,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277993522] [2021-10-28 23:25:23,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:25:23,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:25:23,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:25:23,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:25:23,186 INFO L87 Difference]: Start difference. First operand has 213 states, 211 states have (on average 1.7203791469194314) internal successors, (363), 212 states have internal predecessors, (363), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-10-28 23:25:23,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:25:23,240 INFO L93 Difference]: Finished difference Result 423 states and 722 transitions. [2021-10-28 23:25:23,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:25:23,242 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2021-10-28 23:25:23,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:25:23,257 INFO L225 Difference]: With dead ends: 423 [2021-10-28 23:25:23,258 INFO L226 Difference]: Without dead ends: 209 [2021-10-28 23:25:23,263 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:25:23,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2021-10-28 23:25:23,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2021-10-28 23:25:23,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 208 states have (on average 1.3798076923076923) internal successors, (287), 208 states have internal predecessors, (287), 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) [2021-10-28 23:25:23,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 287 transitions. [2021-10-28 23:25:23,348 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 287 transitions. Word has length 11 [2021-10-28 23:25:23,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:25:23,349 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 287 transitions. [2021-10-28 23:25:23,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-10-28 23:25:23,350 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 287 transitions. [2021-10-28 23:25:23,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-28 23:25:23,351 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:25:23,351 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:25:23,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:23,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:25:23,564 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:25:23,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:23,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1071808080, now seen corresponding path program 1 times [2021-10-28 23:25:23,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:25:23,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1623494481] [2021-10-28 23:25:23,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:23,567 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:25:23,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:25:23,569 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:25:23,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:25:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:24,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:25:24,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:25:24,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29 [2021-10-28 23:25:30,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:30,104 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:25:37,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2021-10-28 23:25:37,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:37,535 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:25:37,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1623494481] [2021-10-28 23:25:37,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1623494481] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:25:37,536 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:25:37,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-10-28 23:25:37,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353704112] [2021-10-28 23:25:37,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:25:37,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:25:37,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:25:37,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=24, Unknown=5, NotChecked=0, Total=42 [2021-10-28 23:25:37,541 INFO L87 Difference]: Start difference. First operand 209 states and 287 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 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) [2021-10-28 23:26:06,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:06,477 INFO L93 Difference]: Finished difference Result 225 states and 304 transitions. [2021-10-28 23:26:06,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:26:06,625 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 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 13 [2021-10-28 23:26:06,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:26:06,628 INFO L225 Difference]: With dead ends: 225 [2021-10-28 23:26:06,628 INFO L226 Difference]: Without dead ends: 220 [2021-10-28 23:26:06,629 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 15.9s TimeCoverageRelationStatistics Valid=26, Invalid=41, Unknown=5, NotChecked=0, Total=72 [2021-10-28 23:26:06,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-10-28 23:26:06,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 209. [2021-10-28 23:26:06,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 208 states have (on average 1.375) internal successors, (286), 208 states have internal predecessors, (286), 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) [2021-10-28 23:26:06,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 286 transitions. [2021-10-28 23:26:06,654 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 286 transitions. Word has length 13 [2021-10-28 23:26:06,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:26:06,655 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 286 transitions. [2021-10-28 23:26:06,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 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) [2021-10-28 23:26:06,656 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 286 transitions. [2021-10-28 23:26:06,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 23:26:06,657 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:26:06,658 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:26:06,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:06,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:26:06,862 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:26:06,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:06,863 INFO L85 PathProgramCache]: Analyzing trace with hash 754673845, now seen corresponding path program 1 times [2021-10-28 23:26:06,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:26:06,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [280464011] [2021-10-28 23:26:06,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:06,864 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:26:06,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:26:06,869 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:26:06,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 23:26:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:07,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:26:07,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:09,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:26:09,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:26:12,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:26:12,151 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:26:12,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [280464011] [2021-10-28 23:26:12,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [280464011] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:26:12,152 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:26:12,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-28 23:26:12,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29987216] [2021-10-28 23:26:12,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:26:12,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:26:12,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:26:12,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:26:12,156 INFO L87 Difference]: Start difference. First operand 209 states and 286 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 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) [2021-10-28 23:26:23,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:23,583 INFO L93 Difference]: Finished difference Result 327 states and 424 transitions. [2021-10-28 23:26:23,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:26:23,585 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 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 15 [2021-10-28 23:26:23,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:26:23,587 INFO L225 Difference]: With dead ends: 327 [2021-10-28 23:26:23,588 INFO L226 Difference]: Without dead ends: 208 [2021-10-28 23:26:23,589 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:26:23,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-10-28 23:26:23,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 198. [2021-10-28 23:26:23,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 197 states have (on average 1.3350253807106598) internal successors, (263), 197 states have internal predecessors, (263), 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) [2021-10-28 23:26:23,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 263 transitions. [2021-10-28 23:26:23,613 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 263 transitions. Word has length 15 [2021-10-28 23:26:23,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:26:23,613 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 263 transitions. [2021-10-28 23:26:23,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 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) [2021-10-28 23:26:23,614 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 263 transitions. [2021-10-28 23:26:23,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 23:26:23,615 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:26:23,615 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:26:23,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:23,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:26:23,832 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:26:23,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:23,832 INFO L85 PathProgramCache]: Analyzing trace with hash 756520887, now seen corresponding path program 1 times [2021-10-28 23:26:23,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:26:23,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [298913809] [2021-10-28 23:26:23,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:23,834 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:26:23,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:26:23,835 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:26:23,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 23:26:24,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:24,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:26:24,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:25,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:26:25,028 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:26:25,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:26:25,818 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:26:25,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [298913809] [2021-10-28 23:26:25,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [298913809] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:26:25,819 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:26:25,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-10-28 23:26:25,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422547685] [2021-10-28 23:26:25,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:26:25,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:26:25,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:26:25,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:26:25,821 INFO L87 Difference]: Start difference. First operand 198 states and 263 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2021-10-28 23:26:44,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:44,561 INFO L93 Difference]: Finished difference Result 203 states and 267 transitions. [2021-10-28 23:26:44,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:26:44,599 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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 15 [2021-10-28 23:26:44,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:26:44,601 INFO L225 Difference]: With dead ends: 203 [2021-10-28 23:26:44,601 INFO L226 Difference]: Without dead ends: 197 [2021-10-28 23:26:44,602 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:26:44,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-10-28 23:26:44,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2021-10-28 23:26:44,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 196 states have (on average 1.3265306122448979) internal successors, (260), 196 states have internal predecessors, (260), 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) [2021-10-28 23:26:44,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 260 transitions. [2021-10-28 23:26:44,630 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 260 transitions. Word has length 15 [2021-10-28 23:26:44,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:26:44,630 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 260 transitions. [2021-10-28 23:26:44,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2021-10-28 23:26:44,630 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 260 transitions. [2021-10-28 23:26:44,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 23:26:44,631 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:26:44,631 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:26:44,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:44,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:26:44,832 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:26:44,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:44,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1368861529, now seen corresponding path program 1 times [2021-10-28 23:26:44,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:26:44,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [551813919] [2021-10-28 23:26:44,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:44,834 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:26:44,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:26:44,835 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:26:44,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 23:26:46,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:46,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:26:46,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:50,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:26:50,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:26:57,840 WARN L838 $PredicateComparison]: unable to prove that (= (fp.div c_currentRoundingMode c_~one_pow~0 c_ULTIMATE.start___ieee754_pow_~x) (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) is different from false [2021-10-28 23:27:00,088 WARN L860 $PredicateComparison]: unable to prove that (= (fp.div c_currentRoundingMode c_~one_pow~0 c_ULTIMATE.start___ieee754_pow_~x) (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) is different from true [2021-10-28 23:27:54,188 WARN L838 $PredicateComparison]: unable to prove that (= (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53))) (fp.div c_currentRoundingMode c_~one_pow~0 c_ULTIMATE.start_main_~x~0)) is different from false [2021-10-28 23:27:56,427 WARN L860 $PredicateComparison]: unable to prove that (= (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53))) (fp.div c_currentRoundingMode c_~one_pow~0 c_ULTIMATE.start_main_~x~0)) is different from true [2021-10-28 23:27:56,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:56,441 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:27:56,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [551813919] [2021-10-28 23:27:56,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [551813919] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:27:56,442 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:27:56,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-10-28 23:27:56,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938132318] [2021-10-28 23:27:56,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 23:27:56,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:27:56,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:27:56,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=69, Unknown=4, NotChecked=34, Total=132 [2021-10-28 23:27:56,445 INFO L87 Difference]: Start difference. First operand 197 states and 260 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 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) [2021-10-28 23:27:59,226 WARN L860 $PredicateComparison]: unable to prove that (and (= c_ULTIMATE.start_main_~x~0 (fp.div c_currentRoundingMode (_ +zero 11 53) (_ +zero 11 53))) (= c_~one_pow~0 ((_ to_fp 11 53) c_currentRoundingMode 1.0)) (= c_currentRoundingMode roundNearestTiesToEven) (= (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53))) (fp.div c_currentRoundingMode c_~one_pow~0 c_ULTIMATE.start_main_~x~0))) is different from true [2021-10-28 23:28:01,473 WARN L860 $PredicateComparison]: unable to prove that (and (= (fp.div c_currentRoundingMode c_~one_pow~0 c_ULTIMATE.start___ieee754_pow_~x) (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (= (fp.div c_currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) c_ULTIMATE.start___ieee754_pow_~x) (= c_~one_pow~0 ((_ to_fp 11 53) c_currentRoundingMode 1.0)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-10-28 23:30:34,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:34,449 INFO L93 Difference]: Finished difference Result 206 states and 272 transitions. [2021-10-28 23:30:34,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:30:34,492 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 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 19 [2021-10-28 23:30:34,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:34,494 INFO L225 Difference]: With dead ends: 206 [2021-10-28 23:30:34,494 INFO L226 Difference]: Without dead ends: 201 [2021-10-28 23:30:34,495 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 17.0s TimeCoverageRelationStatistics Valid=42, Invalid=100, Unknown=6, NotChecked=92, Total=240 [2021-10-28 23:30:34,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-10-28 23:30:34,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2021-10-28 23:30:34,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 200 states have (on average 1.335) internal successors, (267), 200 states have internal predecessors, (267), 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) [2021-10-28 23:30:34,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 267 transitions. [2021-10-28 23:30:34,513 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 267 transitions. Word has length 19 [2021-10-28 23:30:34,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:34,514 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 267 transitions. [2021-10-28 23:30:34,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 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) [2021-10-28 23:30:34,515 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 267 transitions. [2021-10-28 23:30:34,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 23:30:34,516 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:34,516 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:30:34,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-10-28 23:30:34,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:30:34,728 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:30:34,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:34,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1370708571, now seen corresponding path program 1 times [2021-10-28 23:30:34,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:30:34,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1777264547] [2021-10-28 23:30:34,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:34,729 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:30:34,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:30:34,739 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:30:34,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 23:30:35,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:35,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 23:30:35,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:30:38,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:30:38,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:30:42,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:30:42,174 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:30:42,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1777264547] [2021-10-28 23:30:42,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1777264547] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:30:42,175 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:30:42,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-10-28 23:30:42,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786984559] [2021-10-28 23:30:42,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 23:30:42,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:30:42,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:30:42,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:30:42,179 INFO L87 Difference]: Start difference. First operand 201 states and 267 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 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) [2021-10-28 23:31:07,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:31:07,579 INFO L93 Difference]: Finished difference Result 211 states and 275 transitions. [2021-10-28 23:31:07,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:31:07,622 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 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 19 [2021-10-28 23:31:07,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:31:07,624 INFO L225 Difference]: With dead ends: 211 [2021-10-28 23:31:07,624 INFO L226 Difference]: Without dead ends: 205 [2021-10-28 23:31:07,625 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:31:07,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-10-28 23:31:07,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 200. [2021-10-28 23:31:07,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 199 states have (on average 1.3266331658291457) internal successors, (264), 199 states have internal predecessors, (264), 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) [2021-10-28 23:31:07,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 264 transitions. [2021-10-28 23:31:07,642 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 264 transitions. Word has length 19 [2021-10-28 23:31:07,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:31:07,642 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 264 transitions. [2021-10-28 23:31:07,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 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) [2021-10-28 23:31:07,643 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 264 transitions. [2021-10-28 23:31:07,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 23:31:07,644 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:31:07,644 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:31:07,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:31:07,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:31:07,860 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:31:07,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:31:07,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1575730233, now seen corresponding path program 1 times [2021-10-28 23:31:07,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:31:07,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [221782950] [2021-10-28 23:31:07,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:07,861 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:31:07,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:31:07,862 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:31:07,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 23:31:08,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:08,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:31:08,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:31:13,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:31:13,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:31:19,996 WARN L838 $PredicateComparison]: unable to prove that (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.mul roundNearestTiesToEven .cse0 .cse0)) (fp.mul c_currentRoundingMode c_ULTIMATE.start___ieee754_pow_~x c_ULTIMATE.start___ieee754_pow_~x)) is different from false [2021-10-28 23:31:57,297 WARN L838 $PredicateComparison]: unable to prove that (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.mul roundNearestTiesToEven .cse0 .cse0)) (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0)) is different from false [2021-10-28 23:31:59,340 WARN L860 $PredicateComparison]: unable to prove that (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.mul roundNearestTiesToEven .cse0 .cse0)) (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0)) is different from true [2021-10-28 23:31:59,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:31:59,350 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:31:59,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [221782950] [2021-10-28 23:31:59,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [221782950] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:31:59,350 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:31:59,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-10-28 23:31:59,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018051586] [2021-10-28 23:31:59,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 23:31:59,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:31:59,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:31:59,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=70, Unknown=3, NotChecked=34, Total=132 [2021-10-28 23:31:59,352 INFO L87 Difference]: Start difference. First operand 200 states and 264 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 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) [2021-10-28 23:33:03,899 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-10-28 23:33:03,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-10-28 23:33:03,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:33:04,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:33:04,101 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:312) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:158) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:128) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPrecondition(IncrementalHoareTripleChecker.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:269) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:281) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ProtectiveHoareTripleChecker.releaseLock(ProtectiveHoareTripleChecker.java:93) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.EfficientHoareTripleChecker.releaseLock(EfficientHoareTripleChecker.java:162) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:201) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:886) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:783) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:462) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:420) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Broken pipe at java.base/java.io.FileOutputStream.writeBytes(Native Method) at java.base/java.io.FileOutputStream.write(FileOutputStream.java:354) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:81) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:142) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:318) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:153) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:251) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:257) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:156) ... 35 more [2021-10-28 23:33:04,106 INFO L168 Benchmark]: Toolchain (without parser) took 524477.72 ms. Allocated memory was 60.8 MB in the beginning and 92.3 MB in the end (delta: 31.5 MB). Free memory was 40.1 MB in the beginning and 30.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 41.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:33:04,107 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 60.8 MB. Free memory is still 41.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:33:04,107 INFO L168 Benchmark]: CACSL2BoogieTranslator took 873.05 ms. Allocated memory is still 60.8 MB. Free memory was 39.8 MB in the beginning and 30.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:33:04,108 INFO L168 Benchmark]: Boogie Procedure Inliner took 180.60 ms. Allocated memory was 60.8 MB in the beginning and 92.3 MB in the end (delta: 31.5 MB). Free memory was 30.2 MB in the beginning and 73.2 MB in the end (delta: -43.0 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:33:04,109 INFO L168 Benchmark]: Boogie Preprocessor took 178.95 ms. Allocated memory is still 92.3 MB. Free memory was 73.2 MB in the beginning and 68.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:33:04,110 INFO L168 Benchmark]: RCFGBuilder took 60853.66 ms. Allocated memory is still 92.3 MB. Free memory was 68.3 MB in the beginning and 66.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 29.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:33:04,111 INFO L168 Benchmark]: TraceAbstraction took 462381.31 ms. Allocated memory is still 92.3 MB. Free memory was 65.7 MB in the beginning and 30.1 MB in the end (delta: 35.6 MB). Peak memory consumption was 35.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:33:04,114 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 60.8 MB. Free memory is still 41.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 873.05 ms. Allocated memory is still 60.8 MB. Free memory was 39.8 MB in the beginning and 30.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 180.60 ms. Allocated memory was 60.8 MB in the beginning and 92.3 MB in the end (delta: 31.5 MB). Free memory was 30.2 MB in the beginning and 73.2 MB in the end (delta: -43.0 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 178.95 ms. Allocated memory is still 92.3 MB. Free memory was 73.2 MB in the beginning and 68.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 60853.66 ms. Allocated memory is still 92.3 MB. Free memory was 68.3 MB in the beginning and 66.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 29.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 462381.31 ms. Allocated memory is still 92.3 MB. Free memory was 65.7 MB in the beginning and 30.1 MB in the end (delta: 35.6 MB). Peak memory consumption was 35.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cb3aaa-c4db-4511-8152-1c8393dc6736/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:312) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...