./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0 --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 35bac483b91a5ef1ca7e770e0d3fb7ad4f1fb6725ed9e57de7011eda6b44423e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:32:54,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:32:54,027 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:32:54,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:32:54,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:32:54,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:32:54,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:32:54,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:32:54,084 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:32:54,091 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:32:54,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:32:54,094 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:32:54,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:32:54,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:32:54,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:32:54,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:32:54,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:32:54,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:32:54,109 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:32:54,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:32:54,119 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:32:54,121 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:32:54,124 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:32:54,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:32:54,129 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:32:54,129 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:32:54,130 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:32:54,132 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:32:54,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:32:54,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:32:54,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:32:54,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:32:54,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:32:54,139 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:32:54,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:32:54,141 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:32:54,141 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:32:54,142 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:32:54,142 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:32:54,143 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:32:54,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:32:54,145 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 14:32:54,193 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:32:54,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:32:54,196 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:32:54,196 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:32:54,204 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:32:54,205 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:32:54,205 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:32:54,205 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:32:54,205 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 14:32:54,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 14:32:54,207 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 14:32:54,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:32:54,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 14:32:54,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 14:32:54,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 14:32:54,212 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 14:32:54,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 14:32:54,213 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:32:54,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 14:32:54,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:32:54,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:32:54,214 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 14:32:54,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:32:54,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:32:54,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 14:32:54,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 14:32:54,215 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 14:32:54,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 14:32:54,215 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 14:32:54,215 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 14:32:54,216 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 14:32:54,216 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:32:54,216 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_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35bac483b91a5ef1ca7e770e0d3fb7ad4f1fb6725ed9e57de7011eda6b44423e [2021-11-22 14:32:54,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:32:54,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:32:54,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:32:54,570 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:32:54,572 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:32:54,573 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c [2021-11-22 14:32:54,643 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/data/7e95ba80f/f03978cc92f0494b999728e0b9e1a11c/FLAGb55a0d833 [2021-11-22 14:32:55,214 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:32:55,215 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c [2021-11-22 14:32:55,230 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/data/7e95ba80f/f03978cc92f0494b999728e0b9e1a11c/FLAGb55a0d833 [2021-11-22 14:32:55,558 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/data/7e95ba80f/f03978cc92f0494b999728e0b9e1a11c [2021-11-22 14:32:55,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:32:55,562 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:32:55,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:32:55,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:32:55,567 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:32:55,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:32:55" (1/1) ... [2021-11-22 14:32:55,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@325bc3d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:32:55, skipping insertion in model container [2021-11-22 14:32:55,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:32:55" (1/1) ... [2021-11-22 14:32:55,577 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:32:55,603 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:32:55,891 WARN L230 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_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c[4704,4717] [2021-11-22 14:32:55,894 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:32:55,909 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 14:32:55,984 WARN L230 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_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c[4704,4717] [2021-11-22 14:32:55,985 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:32:56,003 INFO L208 MainTranslator]: Completed translation [2021-11-22 14:32:56,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:32:56 WrapperNode [2021-11-22 14:32:56,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:32:56,005 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 14:32:56,005 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 14:32:56,005 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 14:32:56,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:32:56" (1/1) ... [2021-11-22 14:32:56,034 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:32:56" (1/1) ... [2021-11-22 14:32:56,084 INFO L137 Inliner]: procedures = 18, calls = 75, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 424 [2021-11-22 14:32:56,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 14:32:56,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 14:32:56,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 14:32:56,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 14:32:56,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:32:56" (1/1) ... [2021-11-22 14:32:56,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:32:56" (1/1) ... [2021-11-22 14:32:56,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:32:56" (1/1) ... [2021-11-22 14:32:56,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:32:56" (1/1) ... [2021-11-22 14:32:56,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:32:56" (1/1) ... [2021-11-22 14:32:56,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:32:56" (1/1) ... [2021-11-22 14:32:56,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:32:56" (1/1) ... [2021-11-22 14:32:56,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 14:32:56,146 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 14:32:56,146 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 14:32:56,146 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 14:32:56,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:32:56" (1/1) ... [2021-11-22 14:32:56,155 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:32:56,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:32:56,177 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 14:32:56,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 14:32:56,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 14:32:56,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 14:32:56,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 14:32:56,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-22 14:32:56,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 14:32:56,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-22 14:32:56,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 14:32:56,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 14:32:56,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 14:32:56,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 14:32:56,356 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 14:32:56,358 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 14:32:56,909 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 14:32:56,917 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 14:32:56,917 INFO L301 CfgBuilder]: Removed 40 assume(true) statements. [2021-11-22 14:32:56,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:32:56 BoogieIcfgContainer [2021-11-22 14:32:56,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 14:32:56,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 14:32:56,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 14:32:56,937 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 14:32:56,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:32:55" (1/3) ... [2021-11-22 14:32:56,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dc7e5fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:32:56, skipping insertion in model container [2021-11-22 14:32:56,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:32:56" (2/3) ... [2021-11-22 14:32:56,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dc7e5fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:32:56, skipping insertion in model container [2021-11-22 14:32:56,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:32:56" (3/3) ... [2021-11-22 14:32:56,940 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270b.c [2021-11-22 14:32:56,945 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 14:32:56,945 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 14:32:57,011 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 14:32:57,018 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 14:32:57,019 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 14:32:57,042 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 105 states have (on average 1.7142857142857142) internal successors, (180), 106 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:32:57,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-22 14:32:57,049 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:32:57,050 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:32:57,050 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:32:57,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:32:57,056 INFO L85 PathProgramCache]: Analyzing trace with hash 311741284, now seen corresponding path program 1 times [2021-11-22 14:32:57,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:32:57,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426712838] [2021-11-22 14:32:57,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:32:57,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:32:57,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:32:57,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:32:57,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:32:57,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426712838] [2021-11-22 14:32:57,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426712838] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:32:57,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:32:57,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 14:32:57,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827678432] [2021-11-22 14:32:57,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:32:57,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 14:32:57,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:32:57,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 14:32:57,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 14:32:57,305 INFO L87 Difference]: Start difference. First operand has 107 states, 105 states have (on average 1.7142857142857142) internal successors, (180), 106 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:32:57,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:32:57,352 INFO L93 Difference]: Finished difference Result 212 states and 358 transitions. [2021-11-22 14:32:57,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 14:32:57,355 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-22 14:32:57,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:32:57,365 INFO L225 Difference]: With dead ends: 212 [2021-11-22 14:32:57,366 INFO L226 Difference]: Without dead ends: 104 [2021-11-22 14:32:57,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 14:32:57,373 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:32:57,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:32:57,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-11-22 14:32:57,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-11-22 14:32:57,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 103 states have (on average 1.3203883495145632) internal successors, (136), 103 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:32:57,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 136 transitions. [2021-11-22 14:32:57,417 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 136 transitions. Word has length 16 [2021-11-22 14:32:57,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:32:57,417 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 136 transitions. [2021-11-22 14:32:57,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:32:57,418 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 136 transitions. [2021-11-22 14:32:57,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-22 14:32:57,419 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:32:57,419 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:32:57,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 14:32:57,420 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:32:57,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:32:57,421 INFO L85 PathProgramCache]: Analyzing trace with hash 2055151297, now seen corresponding path program 1 times [2021-11-22 14:32:57,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:32:57,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346511757] [2021-11-22 14:32:57,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:32:57,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:32:57,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:32:57,494 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:32:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:32:57,606 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:32:57,611 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-22 14:32:57,617 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-22 14:32:57,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 14:32:57,626 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-22 14:32:57,629 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 14:32:57,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:32:57 BoogieIcfgContainer [2021-11-22 14:32:57,686 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 14:32:57,687 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 14:32:57,687 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 14:32:57,687 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 14:32:57,688 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:32:56" (3/4) ... [2021-11-22 14:32:57,690 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-22 14:32:57,691 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 14:32:57,693 INFO L158 Benchmark]: Toolchain (without parser) took 2130.38ms. Allocated memory was 109.1MB in the beginning and 155.2MB in the end (delta: 46.1MB). Free memory was 67.3MB in the beginning and 111.9MB in the end (delta: -44.6MB). Peak memory consumption was 485.4kB. Max. memory is 16.1GB. [2021-11-22 14:32:57,693 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 109.1MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:32:57,694 INFO L158 Benchmark]: CACSL2BoogieTranslator took 440.82ms. Allocated memory is still 109.1MB. Free memory was 67.1MB in the beginning and 79.0MB in the end (delta: -11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 14:32:57,698 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.13ms. Allocated memory is still 109.1MB. Free memory was 79.0MB in the beginning and 76.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-22 14:32:57,700 INFO L158 Benchmark]: Boogie Preprocessor took 59.40ms. Allocated memory is still 109.1MB. Free memory was 76.1MB in the beginning and 73.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 14:32:57,701 INFO L158 Benchmark]: RCFGBuilder took 773.59ms. Allocated memory is still 109.1MB. Free memory was 73.3MB in the beginning and 50.0MB in the end (delta: 23.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-22 14:32:57,702 INFO L158 Benchmark]: TraceAbstraction took 765.08ms. Allocated memory was 109.1MB in the beginning and 155.2MB in the end (delta: 46.1MB). Free memory was 49.4MB in the beginning and 111.9MB in the end (delta: -62.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:32:57,702 INFO L158 Benchmark]: Witness Printer took 4.77ms. Allocated memory is still 155.2MB. Free memory is still 111.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:32:57,709 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 109.1MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 440.82ms. Allocated memory is still 109.1MB. Free memory was 67.1MB in the beginning and 79.0MB in the end (delta: -11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.13ms. Allocated memory is still 109.1MB. Free memory was 79.0MB in the beginning and 76.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.40ms. Allocated memory is still 109.1MB. Free memory was 76.1MB in the beginning and 73.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 773.59ms. Allocated memory is still 109.1MB. Free memory was 73.3MB in the beginning and 50.0MB in the end (delta: 23.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 765.08ms. Allocated memory was 109.1MB in the beginning and 155.2MB in the end (delta: 46.1MB). Free memory was 49.4MB in the beginning and 111.9MB in the end (delta: -62.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.77ms. Allocated memory is still 155.2MB. Free memory is still 111.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 237]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 120, overapproximation of bitwiseAnd at line 220. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L231] float x = -1.0f / 0.0f; [L232] float y = __VERIFIER_nondet_float(); [L234] CALL, EXPR __ieee754_hypotf(x, y) [L84] float a = x, b = y, t1, t2, y1, y2, w; [L85] __int32_t j, k, ha, hb; VAL [\old(x)=4294967296, \old(y)=4294967299, a=4294967296, b=4294967299, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967296, y=4294967299] [L88] ieee_float_shape_type gf_u; [L89] gf_u.value = (x) [L90] EXPR gf_u.word [L90] (ha) = gf_u.word [L92] ha &= 0x7fffffffL VAL [\old(x)=4294967296, \old(y)=4294967299, a=4294967296, b=4294967299, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967296, y=4294967299] [L94] ieee_float_shape_type gf_u; [L95] gf_u.value = (y) [L96] EXPR gf_u.word [L96] (hb) = gf_u.word [L98] hb &= 0x7fffffffL VAL [\old(x)=4294967296, \old(y)=4294967299, a=4294967296, b=4294967299, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967296, y=4294967299] [L99] COND FALSE !(hb > ha) [L106] a = x [L107] b = y VAL [\old(x)=4294967296, \old(y)=4294967299, a=4294967296, b=4294967299, ha=-2, hb=-251658243, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967296, y=4294967299] [L110] ieee_float_shape_type sf_u; [L111] sf_u.word = (ha) [L112] EXPR sf_u.value [L112] (a) = sf_u.value [L115] ieee_float_shape_type sf_u; [L116] sf_u.word = (hb) [L117] EXPR sf_u.value [L117] (b) = sf_u.value [L119] COND TRUE (ha - hb) > 0xf000000L [L120] return a + b; VAL [\old(x)=4294967296, \old(y)=4294967299, a=4294967297, b=4294967300, ha=-2, hb=-251658243, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967296, y=4294967299] [L234] RET, EXPR __ieee754_hypotf(x, y) [L234] float res = __ieee754_hypotf(x, y); [L236] CALL, EXPR isinf_float(res) [L214] __int32_t ix; VAL [\old(x)=4294967298, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967298] [L216] ieee_float_shape_type gf_u; [L217] gf_u.value = (x) [L218] EXPR gf_u.word [L218] (ix) = gf_u.word [L220] ix &= 0x7fffffff [L221] return ((ix) == 0x7f800000L); VAL [\old(x)=4294967298, \result=0, ix=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967298] [L236] RET, EXPR isinf_float(res) [L236] COND TRUE !isinf_float(res) [L237] reach_error() VAL [one_sqrt=1, res=4294967298, tiny_sqrt=1/1000000000000000000000000000000, x=4294967296, y=4294967299] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 139 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 139 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-22 14:32:57,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0 --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 35bac483b91a5ef1ca7e770e0d3fb7ad4f1fb6725ed9e57de7011eda6b44423e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:33:00,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:33:00,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:33:00,184 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:33:00,184 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:33:00,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:33:00,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:33:00,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:33:00,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:33:00,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:33:00,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:33:00,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:33:00,215 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:33:00,218 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:33:00,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:33:00,225 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:33:00,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:33:00,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:33:00,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:33:00,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:33:00,247 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:33:00,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:33:00,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:33:00,254 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:33:00,260 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:33:00,260 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:33:00,261 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:33:00,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:33:00,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:33:00,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:33:00,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:33:00,266 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:33:00,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:33:00,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:33:00,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:33:00,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:33:00,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:33:00,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:33:00,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:33:00,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:33:00,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:33:00,280 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-22 14:33:00,325 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:33:00,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:33:00,326 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:33:00,327 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:33:00,329 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:33:00,329 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:33:00,329 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:33:00,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:33:00,330 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 14:33:00,330 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 14:33:00,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:33:00,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 14:33:00,331 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 14:33:00,332 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 14:33:00,332 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-22 14:33:00,332 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-22 14:33:00,332 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-22 14:33:00,333 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 14:33:00,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 14:33:00,333 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:33:00,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 14:33:00,334 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:33:00,334 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:33:00,334 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 14:33:00,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:33:00,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:33:00,335 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 14:33:00,335 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 14:33:00,335 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-22 14:33:00,335 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-22 14:33:00,336 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 14:33:00,336 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 14:33:00,336 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 14:33:00,337 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:33:00,337 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-22 14:33:00,337 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_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35bac483b91a5ef1ca7e770e0d3fb7ad4f1fb6725ed9e57de7011eda6b44423e [2021-11-22 14:33:00,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:33:00,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:33:00,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:33:00,740 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:33:00,741 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:33:00,742 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c [2021-11-22 14:33:00,827 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/data/d60728f82/9346aa13c02b44d9a313ccc451af4fd0/FLAG4cf00808d [2021-11-22 14:33:01,366 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:33:01,367 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c [2021-11-22 14:33:01,378 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/data/d60728f82/9346aa13c02b44d9a313ccc451af4fd0/FLAG4cf00808d [2021-11-22 14:33:01,665 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/data/d60728f82/9346aa13c02b44d9a313ccc451af4fd0 [2021-11-22 14:33:01,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:33:01,669 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:33:01,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:33:01,671 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:33:01,674 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:33:01,675 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:33:01" (1/1) ... [2021-11-22 14:33:01,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e0c8181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:01, skipping insertion in model container [2021-11-22 14:33:01,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:33:01" (1/1) ... [2021-11-22 14:33:01,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:33:01,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:33:01,900 WARN L230 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_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c[4704,4717] [2021-11-22 14:33:01,903 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:33:01,916 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 14:33:01,980 WARN L230 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_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c[4704,4717] [2021-11-22 14:33:01,981 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:33:01,997 INFO L208 MainTranslator]: Completed translation [2021-11-22 14:33:01,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:01 WrapperNode [2021-11-22 14:33:01,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:33:01,999 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 14:33:01,999 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 14:33:01,999 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 14:33:02,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:01" (1/1) ... [2021-11-22 14:33:02,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:01" (1/1) ... [2021-11-22 14:33:02,090 INFO L137 Inliner]: procedures = 21, calls = 75, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 424 [2021-11-22 14:33:02,091 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 14:33:02,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 14:33:02,092 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 14:33:02,092 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 14:33:02,100 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:01" (1/1) ... [2021-11-22 14:33:02,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:01" (1/1) ... [2021-11-22 14:33:02,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:01" (1/1) ... [2021-11-22 14:33:02,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:01" (1/1) ... [2021-11-22 14:33:02,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:01" (1/1) ... [2021-11-22 14:33:02,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:01" (1/1) ... [2021-11-22 14:33:02,143 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:01" (1/1) ... [2021-11-22 14:33:02,149 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 14:33:02,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 14:33:02,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 14:33:02,151 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 14:33:02,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:01" (1/1) ... [2021-11-22 14:33:02,165 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:33:02,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:33:02,199 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 14:33:02,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 14:33:02,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 14:33:02,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-22 14:33:02,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 14:33:02,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-22 14:33:02,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-22 14:33:02,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 14:33:02,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 14:33:02,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-22 14:33:02,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-22 14:33:02,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 14:33:02,382 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 14:33:02,383 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 14:33:08,112 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 14:33:08,119 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 14:33:08,119 INFO L301 CfgBuilder]: Removed 40 assume(true) statements. [2021-11-22 14:33:08,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:33:08 BoogieIcfgContainer [2021-11-22 14:33:08,121 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 14:33:08,122 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 14:33:08,122 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 14:33:08,125 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 14:33:08,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:33:01" (1/3) ... [2021-11-22 14:33:08,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ba19398 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:33:08, skipping insertion in model container [2021-11-22 14:33:08,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:01" (2/3) ... [2021-11-22 14:33:08,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ba19398 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:33:08, skipping insertion in model container [2021-11-22 14:33:08,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:33:08" (3/3) ... [2021-11-22 14:33:08,128 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270b.c [2021-11-22 14:33:08,133 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 14:33:08,134 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 14:33:08,179 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 14:33:08,186 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 14:33:08,186 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 14:33:08,203 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 105 states have (on average 1.7142857142857142) internal successors, (180), 106 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:33:08,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-22 14:33:08,209 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:33:08,210 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:33:08,210 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:33:08,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:33:08,216 INFO L85 PathProgramCache]: Analyzing trace with hash 311741284, now seen corresponding path program 1 times [2021-11-22 14:33:08,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:33:08,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [89277276] [2021-11-22 14:33:08,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:33:08,229 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:33:08,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:33:08,233 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:33:08,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-22 14:33:08,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:33:08,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-22 14:33:08,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:33:08,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:33:08,504 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:33:08,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:33:08,599 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:33:08,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [89277276] [2021-11-22 14:33:08,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [89277276] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:33:08,601 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:33:08,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-22 14:33:08,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319220808] [2021-11-22 14:33:08,605 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:33:08,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 14:33:08,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:33:08,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 14:33:08,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 14:33:08,650 INFO L87 Difference]: Start difference. First operand has 107 states, 105 states have (on average 1.7142857142857142) internal successors, (180), 106 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:33:08,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:33:08,692 INFO L93 Difference]: Finished difference Result 212 states and 358 transitions. [2021-11-22 14:33:08,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 14:33:08,694 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-22 14:33:08,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:33:08,709 INFO L225 Difference]: With dead ends: 212 [2021-11-22 14:33:08,709 INFO L226 Difference]: Without dead ends: 104 [2021-11-22 14:33:08,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 14:33:08,719 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:33:08,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:33:08,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-11-22 14:33:08,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-11-22 14:33:08,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 103 states have (on average 1.3203883495145632) internal successors, (136), 103 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:33:08,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 136 transitions. [2021-11-22 14:33:08,799 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 136 transitions. Word has length 16 [2021-11-22 14:33:08,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:33:08,800 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 136 transitions. [2021-11-22 14:33:08,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:33:08,800 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 136 transitions. [2021-11-22 14:33:08,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-22 14:33:08,802 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:33:08,802 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:33:08,813 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-22 14:33:09,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:33:09,012 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:33:09,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:33:09,012 INFO L85 PathProgramCache]: Analyzing trace with hash 2055151297, now seen corresponding path program 1 times [2021-11-22 14:33:09,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:33:09,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1249783343] [2021-11-22 14:33:09,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:33:09,014 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:33:09,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:33:09,019 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:33:09,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-22 14:33:09,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:33:09,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-22 14:33:09,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:33:09,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2021-11-22 14:33:10,080 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-22 14:33:10,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 52 [2021-11-22 14:33:12,047 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 79 treesize of output 59 [2021-11-22 14:33:13,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:33:13,978 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:33:59,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:33:59,585 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:33:59,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1249783343] [2021-11-22 14:33:59,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1249783343] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:33:59,586 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:33:59,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 25 [2021-11-22 14:33:59,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337146550] [2021-11-22 14:33:59,587 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:33:59,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-22 14:33:59,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:33:59,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-22 14:33:59,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=512, Unknown=9, NotChecked=0, Total=600 [2021-11-22 14:33:59,590 INFO L87 Difference]: Start difference. First operand 104 states and 136 transitions. Second operand has 25 states, 25 states have (on average 1.64) internal successors, (41), 25 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:34:01,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:34:01,442 INFO L93 Difference]: Finished difference Result 117 states and 149 transitions. [2021-11-22 14:34:01,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-22 14:34:01,443 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.64) internal successors, (41), 25 states have internal predecessors, (41), 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 21 [2021-11-22 14:34:01,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:34:01,445 INFO L225 Difference]: With dead ends: 117 [2021-11-22 14:34:01,445 INFO L226 Difference]: Without dead ends: 109 [2021-11-22 14:34:01,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 38.8s TimeCoverageRelationStatistics Valid=92, Invalid=601, Unknown=9, NotChecked=0, Total=702 [2021-11-22 14:34:01,447 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 14 mSDsluCounter, 1857 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1980 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 325 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-22 14:34:01,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 1980 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 325 Unchecked, 0.4s Time] [2021-11-22 14:34:01,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-11-22 14:34:01,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2021-11-22 14:34:01,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 108 states have (on average 1.3055555555555556) internal successors, (141), 108 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:34:01,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 141 transitions. [2021-11-22 14:34:01,460 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 141 transitions. Word has length 21 [2021-11-22 14:34:01,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:34:01,461 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 141 transitions. [2021-11-22 14:34:01,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.64) internal successors, (41), 25 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:34:01,461 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 141 transitions. [2021-11-22 14:34:01,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-22 14:34:01,462 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:34:01,463 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:34:01,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-22 14:34:01,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:34:01,684 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:34:01,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:34:01,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1653009985, now seen corresponding path program 1 times [2021-11-22 14:34:01,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:34:01,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1251787089] [2021-11-22 14:34:01,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:34:01,685 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:34:01,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:34:01,688 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:34:01,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-22 14:34:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:34:01,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-22 14:34:01,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:34:04,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:34:04,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:34:10,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:34:10,264 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:34:10,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1251787089] [2021-11-22 14:34:10,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1251787089] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:34:10,265 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:34:10,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-22 14:34:10,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416299847] [2021-11-22 14:34:10,265 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:34:10,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-22 14:34:10,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:34:10,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-22 14:34:10,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-22 14:34:10,267 INFO L87 Difference]: Start difference. First operand 109 states and 141 transitions. Second operand has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:34:12,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:34:12,015 INFO L93 Difference]: Finished difference Result 117 states and 148 transitions. [2021-11-22 14:34:12,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-22 14:34:12,020 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 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 21 [2021-11-22 14:34:12,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:34:12,021 INFO L225 Difference]: With dead ends: 117 [2021-11-22 14:34:12,021 INFO L226 Difference]: Without dead ends: 109 [2021-11-22 14:34:12,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-22 14:34:12,023 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 120 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 112 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-22 14:34:12,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 970 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 112 Unchecked, 1.7s Time] [2021-11-22 14:34:12,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-11-22 14:34:12,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 104. [2021-11-22 14:34:12,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 103 states have (on average 1.3106796116504855) internal successors, (135), 103 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:34:12,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 135 transitions. [2021-11-22 14:34:12,038 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 135 transitions. Word has length 21 [2021-11-22 14:34:12,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:34:12,038 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 135 transitions. [2021-11-22 14:34:12,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:34:12,038 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 135 transitions. [2021-11-22 14:34:12,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-22 14:34:12,039 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:34:12,039 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:34:12,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-22 14:34:12,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:34:12,240 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:34:12,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:34:12,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1948976903, now seen corresponding path program 1 times [2021-11-22 14:34:12,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:34:12,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [650408063] [2021-11-22 14:34:12,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:34:12,242 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:34:12,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:34:12,242 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:34:12,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-22 14:34:12,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:34:12,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-22 14:34:12,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:34:14,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:34:14,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:34:15,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:34:15,617 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:34:15,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [650408063] [2021-11-22 14:34:15,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [650408063] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:34:15,617 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:34:15,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-22 14:34:15,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674154728] [2021-11-22 14:34:15,618 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:34:15,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-22 14:34:15,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:34:15,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-22 14:34:15,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-22 14:34:15,619 INFO L87 Difference]: Start difference. First operand 104 states and 135 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:34:15,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:34:15,904 INFO L93 Difference]: Finished difference Result 199 states and 256 transitions. [2021-11-22 14:34:15,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 14:34:15,906 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-22 14:34:15,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:34:15,907 INFO L225 Difference]: With dead ends: 199 [2021-11-22 14:34:15,907 INFO L226 Difference]: Without dead ends: 118 [2021-11-22 14:34:15,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-22 14:34:15,909 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 30 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 14:34:15,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 535 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 17 Unchecked, 0.3s Time] [2021-11-22 14:34:15,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-22 14:34:15,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 110. [2021-11-22 14:34:15,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 109 states have (on average 1.2935779816513762) internal successors, (141), 109 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:34:15,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 141 transitions. [2021-11-22 14:34:15,920 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 141 transitions. Word has length 24 [2021-11-22 14:34:15,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:34:15,920 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 141 transitions. [2021-11-22 14:34:15,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:34:15,920 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 141 transitions. [2021-11-22 14:34:15,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-22 14:34:15,922 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:34:15,922 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:34:15,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-22 14:34:16,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:34:16,124 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:34:16,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:34:16,124 INFO L85 PathProgramCache]: Analyzing trace with hash -927908549, now seen corresponding path program 1 times [2021-11-22 14:34:16,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:34:16,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [603054885] [2021-11-22 14:34:16,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:34:16,125 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:34:16,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:34:16,128 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:34:16,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-22 14:34:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:34:16,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-22 14:34:16,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:34:18,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:34:18,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:34:20,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:34:20,249 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:34:20,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [603054885] [2021-11-22 14:34:20,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [603054885] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:34:20,250 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:34:20,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-22 14:34:20,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985365295] [2021-11-22 14:34:20,250 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:34:20,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 14:34:20,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:34:20,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 14:34:20,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-22 14:34:20,252 INFO L87 Difference]: Start difference. First operand 110 states and 141 transitions. Second operand has 10 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:34:21,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:34:21,515 INFO L93 Difference]: Finished difference Result 209 states and 265 transitions. [2021-11-22 14:34:21,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 14:34:21,516 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-22 14:34:21,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:34:21,517 INFO L225 Difference]: With dead ends: 209 [2021-11-22 14:34:21,517 INFO L226 Difference]: Without dead ends: 129 [2021-11-22 14:34:21,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-11-22 14:34:21,519 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 33 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 65 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-22 14:34:21,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 829 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 65 Unchecked, 0.8s Time] [2021-11-22 14:34:21,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-11-22 14:34:21,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 111. [2021-11-22 14:34:21,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.290909090909091) internal successors, (142), 110 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:34:21,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 142 transitions. [2021-11-22 14:34:21,529 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 142 transitions. Word has length 24 [2021-11-22 14:34:21,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:34:21,530 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 142 transitions. [2021-11-22 14:34:21,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:34:21,530 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 142 transitions. [2021-11-22 14:34:21,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-22 14:34:21,532 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:34:21,532 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:34:21,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-22 14:34:21,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:34:21,750 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:34:21,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:34:21,750 INFO L85 PathProgramCache]: Analyzing trace with hash -558668800, now seen corresponding path program 1 times [2021-11-22 14:34:21,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:34:21,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [876469762] [2021-11-22 14:34:21,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:34:21,751 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:34:21,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:34:21,752 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:34:21,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-22 14:34:21,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:34:21,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-22 14:34:21,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:34:22,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2021-11-22 14:34:25,050 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 42 treesize of output 26 [2021-11-22 14:34:26,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:34:26,755 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:34:32,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:34:32,232 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:34:32,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [876469762] [2021-11-22 14:34:32,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [876469762] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:34:32,233 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:34:32,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 17 [2021-11-22 14:34:32,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496545519] [2021-11-22 14:34:32,233 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:34:32,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-22 14:34:32,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:34:32,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-22 14:34:32,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-11-22 14:34:32,235 INFO L87 Difference]: Start difference. First operand 111 states and 142 transitions. Second operand has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:34:32,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:34:32,297 INFO L93 Difference]: Finished difference Result 130 states and 163 transitions. [2021-11-22 14:34:32,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-22 14:34:32,297 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-22 14:34:32,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:34:32,299 INFO L225 Difference]: With dead ends: 130 [2021-11-22 14:34:32,299 INFO L226 Difference]: Without dead ends: 114 [2021-11-22 14:34:32,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-11-22 14:34:32,300 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 6 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 93 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 14:34:32,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 1509 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 93 Unchecked, 0.1s Time] [2021-11-22 14:34:32,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-11-22 14:34:32,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 111. [2021-11-22 14:34:32,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.2818181818181817) internal successors, (141), 110 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:34:32,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 141 transitions. [2021-11-22 14:34:32,309 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 141 transitions. Word has length 26 [2021-11-22 14:34:32,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:34:32,309 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 141 transitions. [2021-11-22 14:34:32,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:34:32,310 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 141 transitions. [2021-11-22 14:34:32,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-22 14:34:32,311 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:34:32,311 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:34:32,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-22 14:34:32,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:34:32,531 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:34:32,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:34:32,532 INFO L85 PathProgramCache]: Analyzing trace with hash 121389570, now seen corresponding path program 1 times [2021-11-22 14:34:32,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:34:32,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [318209123] [2021-11-22 14:34:32,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:34:32,532 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:34:32,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:34:32,533 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:34:32,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-22 14:34:32,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:34:32,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-22 14:34:32,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:34:38,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:34:38,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:34:48,608 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_18| (_ BitVec 32))) (or (not (= (let ((.cse0 (bvand (_ bv2147483647 32) |c_ULTIMATE.start___ieee754_hypotf_~ha~0#1|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_18|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_18|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_18|)))) (= (bvand (_ bv2147483647 32) |v_skolemized_q#valueAsBitvector_18|) (_ bv2139095040 32)))) is different from false [2021-11-22 14:34:50,959 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_18| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_17| (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_17|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_17|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_17|)) |c_ULTIMATE.start___ieee754_hypotf_~x#1|)) (not (= (let ((.cse0 (bvand (_ bv2147483647 32) |v_skolemized_q#valueAsBitvector_17|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_18|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_18|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_18|)))) (= (bvand (_ bv2147483647 32) |v_skolemized_q#valueAsBitvector_18|) (_ bv2139095040 32)))) is different from false [2021-11-22 14:34:51,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:34:51,003 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:34:51,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [318209123] [2021-11-22 14:34:51,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [318209123] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:34:51,003 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:34:51,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-11-22 14:34:51,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676556998] [2021-11-22 14:34:51,004 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:34:51,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-22 14:34:51,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:34:51,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-22 14:34:51,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=336, Unknown=2, NotChecked=74, Total=462 [2021-11-22 14:34:51,010 INFO L87 Difference]: Start difference. First operand 111 states and 141 transitions. Second operand has 22 states, 22 states have (on average 2.272727272727273) internal successors, (50), 22 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:34:53,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:34:53,559 INFO L93 Difference]: Finished difference Result 134 states and 164 transitions. [2021-11-22 14:34:53,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 14:34:53,559 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.272727272727273) internal successors, (50), 22 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-22 14:34:53,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:34:53,561 INFO L225 Difference]: With dead ends: 134 [2021-11-22 14:34:53,561 INFO L226 Difference]: Without dead ends: 124 [2021-11-22 14:34:53,561 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 16.1s TimeCoverageRelationStatistics Valid=55, Invalid=371, Unknown=2, NotChecked=78, Total=506 [2021-11-22 14:34:53,562 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 23 mSDsluCounter, 2035 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 2164 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 152 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:34:53,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 2164 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 152 Unchecked, 0.0s Time] [2021-11-22 14:34:53,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-11-22 14:34:53,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 113. [2021-11-22 14:34:53,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 112 states have (on average 1.2857142857142858) internal successors, (144), 112 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:34:53,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 144 transitions. [2021-11-22 14:34:53,569 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 144 transitions. Word has length 26 [2021-11-22 14:34:53,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:34:53,570 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 144 transitions. [2021-11-22 14:34:53,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.272727272727273) internal successors, (50), 22 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:34:53,570 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 144 transitions. [2021-11-22 14:34:53,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-22 14:34:53,571 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:34:53,572 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:34:53,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-22 14:34:53,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:34:53,790 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:34:53,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:34:53,790 INFO L85 PathProgramCache]: Analyzing trace with hash -271637440, now seen corresponding path program 1 times [2021-11-22 14:34:53,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:34:53,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1829644216] [2021-11-22 14:34:53,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:34:53,791 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:34:53,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:34:53,792 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:34:53,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-22 14:34:53,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:34:53,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-22 14:34:53,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:34:55,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:34:55,898 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:34:57,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:34:57,413 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:34:57,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1829644216] [2021-11-22 14:34:57,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1829644216] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:34:57,413 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:34:57,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-22 14:34:57,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853516047] [2021-11-22 14:34:57,414 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:34:57,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-22 14:34:57,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:34:57,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-22 14:34:57,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-22 14:34:57,415 INFO L87 Difference]: Start difference. First operand 113 states and 144 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:34:58,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:34:58,506 INFO L93 Difference]: Finished difference Result 210 states and 266 transitions. [2021-11-22 14:34:58,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 14:34:58,507 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-22 14:34:58,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:34:58,508 INFO L225 Difference]: With dead ends: 210 [2021-11-22 14:34:58,509 INFO L226 Difference]: Without dead ends: 115 [2021-11-22 14:34:58,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-22 14:34:58,510 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 20 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 35 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-22 14:34:58,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 624 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 35 Unchecked, 0.9s Time] [2021-11-22 14:34:58,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-11-22 14:34:58,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 105. [2021-11-22 14:34:58,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 104 states have (on average 1.2884615384615385) internal successors, (134), 104 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:34:58,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 134 transitions. [2021-11-22 14:34:58,519 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 134 transitions. Word has length 26 [2021-11-22 14:34:58,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:34:58,519 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 134 transitions. [2021-11-22 14:34:58,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:34:58,520 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 134 transitions. [2021-11-22 14:34:58,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-22 14:34:58,521 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:34:58,521 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:34:58,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-22 14:34:58,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:34:58,738 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:34:58,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:34:58,739 INFO L85 PathProgramCache]: Analyzing trace with hash 2115534276, now seen corresponding path program 1 times [2021-11-22 14:34:58,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:34:58,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1373398966] [2021-11-22 14:34:58,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:34:58,739 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:34:58,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:34:58,740 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:34:58,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-22 14:34:58,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:34:58,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-22 14:34:58,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:35:03,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:35:03,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:35:06,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:35:06,414 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:35:06,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1373398966] [2021-11-22 14:35:06,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1373398966] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:35:06,415 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:35:06,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-22 14:35:06,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335223081] [2021-11-22 14:35:06,415 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:35:06,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-22 14:35:06,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:35:06,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-22 14:35:06,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-11-22 14:35:06,417 INFO L87 Difference]: Start difference. First operand 105 states and 134 transitions. Second operand has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:35:07,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:35:07,277 INFO L93 Difference]: Finished difference Result 186 states and 237 transitions. [2021-11-22 14:35:07,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-22 14:35:07,278 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-22 14:35:07,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:35:07,279 INFO L225 Difference]: With dead ends: 186 [2021-11-22 14:35:07,279 INFO L226 Difference]: Without dead ends: 176 [2021-11-22 14:35:07,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-11-22 14:35:07,280 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 118 mSDsluCounter, 992 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 34 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-22 14:35:07,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 1194 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 34 Unchecked, 0.8s Time] [2021-11-22 14:35:07,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-11-22 14:35:07,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 105. [2021-11-22 14:35:07,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 104 states have (on average 1.2788461538461537) internal successors, (133), 104 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:35:07,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 133 transitions. [2021-11-22 14:35:07,288 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 133 transitions. Word has length 26 [2021-11-22 14:35:07,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:35:07,289 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 133 transitions. [2021-11-22 14:35:07,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:35:07,289 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 133 transitions. [2021-11-22 14:35:07,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-22 14:35:07,290 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:35:07,290 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:35:07,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-22 14:35:07,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:35:07,498 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:35:07,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:35:07,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1722507266, now seen corresponding path program 1 times [2021-11-22 14:35:07,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:35:07,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1469142177] [2021-11-22 14:35:07,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:35:07,499 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:35:07,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:35:07,508 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:35:07,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-22 14:35:07,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:35:07,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-22 14:35:07,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:35:09,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:35:09,978 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:35:11,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:35:11,944 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:35:11,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1469142177] [2021-11-22 14:35:11,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1469142177] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:35:11,944 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:35:11,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-22 14:35:11,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769571835] [2021-11-22 14:35:11,945 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:35:11,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 14:35:11,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:35:11,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 14:35:11,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-22 14:35:11,946 INFO L87 Difference]: Start difference. First operand 105 states and 133 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:35:13,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:35:13,011 INFO L93 Difference]: Finished difference Result 184 states and 234 transitions. [2021-11-22 14:35:13,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 14:35:13,012 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-22 14:35:13,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:35:13,013 INFO L225 Difference]: With dead ends: 184 [2021-11-22 14:35:13,014 INFO L226 Difference]: Without dead ends: 173 [2021-11-22 14:35:13,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-22 14:35:13,015 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 99 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-22 14:35:13,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 480 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 8 Unchecked, 0.8s Time] [2021-11-22 14:35:13,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-11-22 14:35:13,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 102. [2021-11-22 14:35:13,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 101 states have (on average 1.2772277227722773) internal successors, (129), 101 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:35:13,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 129 transitions. [2021-11-22 14:35:13,025 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 129 transitions. Word has length 26 [2021-11-22 14:35:13,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:35:13,025 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 129 transitions. [2021-11-22 14:35:13,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:35:13,025 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 129 transitions. [2021-11-22 14:35:13,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-22 14:35:13,032 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:35:13,032 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:35:13,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-22 14:35:13,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:35:13,247 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:35:13,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:35:13,247 INFO L85 PathProgramCache]: Analyzing trace with hash -520265088, now seen corresponding path program 1 times [2021-11-22 14:35:13,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:35:13,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [942363081] [2021-11-22 14:35:13,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:35:13,248 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:35:13,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:35:13,249 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:35:13,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-22 14:35:13,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:35:13,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 14:35:13,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:35:16,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:35:16,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:35:18,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:35:18,935 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:35:18,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [942363081] [2021-11-22 14:35:18,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [942363081] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:35:18,935 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:35:18,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-22 14:35:18,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204697386] [2021-11-22 14:35:18,935 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:35:18,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-22 14:35:18,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:35:18,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-22 14:35:18,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-22 14:35:18,937 INFO L87 Difference]: Start difference. First operand 102 states and 129 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:35:19,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:35:19,066 INFO L93 Difference]: Finished difference Result 173 states and 223 transitions. [2021-11-22 14:35:19,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 14:35:19,072 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-22 14:35:19,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:35:19,073 INFO L225 Difference]: With dead ends: 173 [2021-11-22 14:35:19,073 INFO L226 Difference]: Without dead ends: 93 [2021-11-22 14:35:19,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-22 14:35:19,075 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 12 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 14:35:19,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 817 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 21 Unchecked, 0.1s Time] [2021-11-22 14:35:19,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-11-22 14:35:19,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 92. [2021-11-22 14:35:19,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.2747252747252746) internal successors, (116), 91 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:35:19,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 116 transitions. [2021-11-22 14:35:19,083 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 116 transitions. Word has length 29 [2021-11-22 14:35:19,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:35:19,083 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 116 transitions. [2021-11-22 14:35:19,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:35:19,084 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 116 transitions. [2021-11-22 14:35:19,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-22 14:35:19,084 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:35:19,084 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:35:19,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-11-22 14:35:19,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:35:19,319 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:35:19,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:35:19,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1951072080, now seen corresponding path program 1 times [2021-11-22 14:35:19,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:35:19,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1079924272] [2021-11-22 14:35:19,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:35:19,320 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:35:19,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:35:19,334 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:35:19,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-22 14:35:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:35:19,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 14:35:19,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:35:22,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:35:22,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:35:29,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:35:29,525 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:35:29,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1079924272] [2021-11-22 14:35:29,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1079924272] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:35:29,526 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:35:29,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-22 14:35:29,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519172864] [2021-11-22 14:35:29,526 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:35:29,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-22 14:35:29,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:35:29,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-22 14:35:29,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-11-22 14:35:29,527 INFO L87 Difference]: Start difference. First operand 92 states and 116 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:35:29,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:35:29,826 INFO L93 Difference]: Finished difference Result 164 states and 211 transitions. [2021-11-22 14:35:29,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 14:35:29,828 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 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 34 [2021-11-22 14:35:29,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:35:29,828 INFO L225 Difference]: With dead ends: 164 [2021-11-22 14:35:29,829 INFO L226 Difference]: Without dead ends: 92 [2021-11-22 14:35:29,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-11-22 14:35:29,830 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 7 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 14:35:29,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 920 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 31 Unchecked, 0.3s Time] [2021-11-22 14:35:29,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-11-22 14:35:29,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2021-11-22 14:35:29,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.2637362637362637) internal successors, (115), 91 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:35:29,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 115 transitions. [2021-11-22 14:35:29,836 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 115 transitions. Word has length 34 [2021-11-22 14:35:29,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:35:29,837 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 115 transitions. [2021-11-22 14:35:29,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:35:29,837 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 115 transitions. [2021-11-22 14:35:29,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-22 14:35:29,838 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:35:29,838 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:35:29,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-22 14:35:30,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:35:30,038 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:35:30,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:35:30,039 INFO L85 PathProgramCache]: Analyzing trace with hash -854519211, now seen corresponding path program 1 times [2021-11-22 14:35:30,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:35:30,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [578125059] [2021-11-22 14:35:30,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:35:30,039 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:35:30,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:35:30,055 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:35:30,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-22 14:35:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:35:30,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 14:35:30,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:35:31,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:35:31,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:35:32,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:35:32,537 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:35:32,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [578125059] [2021-11-22 14:35:32,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [578125059] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:35:32,537 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:35:32,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-22 14:35:32,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849064922] [2021-11-22 14:35:32,538 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:35:32,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 14:35:32,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:35:32,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 14:35:32,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-22 14:35:32,539 INFO L87 Difference]: Start difference. First operand 92 states and 115 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:35:32,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:35:32,746 INFO L93 Difference]: Finished difference Result 100 states and 122 transitions. [2021-11-22 14:35:32,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 14:35:32,748 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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 39 [2021-11-22 14:35:32,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:35:32,750 INFO L225 Difference]: With dead ends: 100 [2021-11-22 14:35:32,750 INFO L226 Difference]: Without dead ends: 92 [2021-11-22 14:35:32,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-22 14:35:32,752 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 98 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 14:35:32,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 245 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 14:35:32,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-11-22 14:35:32,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2021-11-22 14:35:32,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.2527472527472527) internal successors, (114), 91 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:35:32,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 114 transitions. [2021-11-22 14:35:32,760 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 114 transitions. Word has length 39 [2021-11-22 14:35:32,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:35:32,760 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 114 transitions. [2021-11-22 14:35:32,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:35:32,761 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 114 transitions. [2021-11-22 14:35:32,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-22 14:35:32,762 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:35:32,762 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:35:32,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-22 14:35:32,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:35:32,983 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:35:32,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:35:32,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1954784626, now seen corresponding path program 1 times [2021-11-22 14:35:32,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:35:32,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1550353317] [2021-11-22 14:35:32,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:35:32,984 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:35:32,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:35:32,985 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:35:32,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-22 14:35:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:35:33,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-22 14:35:33,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:35:38,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:35:38,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:35:58,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:35:58,032 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:35:58,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1550353317] [2021-11-22 14:35:58,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1550353317] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:35:58,033 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:35:58,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 8] imperfect sequences [] total 13 [2021-11-22 14:35:58,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266698865] [2021-11-22 14:35:58,033 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:35:58,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-22 14:35:58,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:35:58,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-22 14:35:58,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=105, Unknown=3, NotChecked=0, Total=156 [2021-11-22 14:35:58,034 INFO L87 Difference]: Start difference. First operand 92 states and 114 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:35:58,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:35:58,072 INFO L93 Difference]: Finished difference Result 92 states and 114 transitions. [2021-11-22 14:35:58,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 14:35:58,074 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 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 42 [2021-11-22 14:35:58,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:35:58,074 INFO L225 Difference]: With dead ends: 92 [2021-11-22 14:35:58,074 INFO L226 Difference]: Without dead ends: 0 [2021-11-22 14:35:58,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 19.0s TimeCoverageRelationStatistics Valid=48, Invalid=105, Unknown=3, NotChecked=0, Total=156 [2021-11-22 14:35:58,076 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 12 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:35:58,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 34 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 8 Unchecked, 0.0s Time] [2021-11-22 14:35:58,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-22 14:35:58,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-22 14:35:58,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:35:58,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-22 14:35:58,078 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2021-11-22 14:35:58,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:35:58,078 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 14:35:58,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:35:58,078 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-22 14:35:58,079 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-22 14:35:58,081 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-22 14:35:58,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-11-22 14:35:58,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:35:58,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-22 14:36:01,276 INFO L858 garLoopResultBuilder]: For program point L168(lines 168 172) no Hoare annotation was computed. [2021-11-22 14:36:01,276 INFO L858 garLoopResultBuilder]: For program point L168-1(lines 159 173) no Hoare annotation was computed. [2021-11-22 14:36:01,276 INFO L858 garLoopResultBuilder]: For program point L202-1(lines 202 206) no Hoare annotation was computed. [2021-11-22 14:36:01,277 INFO L854 garLoopResultBuilder]: At program point L202-2(lines 202 206) the Hoare annotation is: false [2021-11-22 14:36:01,277 INFO L858 garLoopResultBuilder]: For program point L136-1(lines 136 140) no Hoare annotation was computed. [2021-11-22 14:36:01,277 INFO L858 garLoopResultBuilder]: For program point L202-3(lines 202 206) no Hoare annotation was computed. [2021-11-22 14:36:01,277 INFO L854 garLoopResultBuilder]: At program point L136-2(lines 136 140) the Hoare annotation is: false [2021-11-22 14:36:01,277 INFO L858 garLoopResultBuilder]: For program point L37(lines 37 41) no Hoare annotation was computed. [2021-11-22 14:36:01,277 INFO L858 garLoopResultBuilder]: For program point L37-2(lines 37 41) no Hoare annotation was computed. [2021-11-22 14:36:01,278 INFO L858 garLoopResultBuilder]: For program point L37-3(lines 37 41) no Hoare annotation was computed. [2021-11-22 14:36:01,278 INFO L858 garLoopResultBuilder]: For program point L37-5(lines 37 41) no Hoare annotation was computed. [2021-11-22 14:36:01,278 INFO L858 garLoopResultBuilder]: For program point L236(lines 236 239) no Hoare annotation was computed. [2021-11-22 14:36:01,278 INFO L858 garLoopResultBuilder]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2021-11-22 14:36:01,278 INFO L854 garLoopResultBuilder]: At program point L38-3(lines 38 39) the Hoare annotation is: false [2021-11-22 14:36:01,278 INFO L858 garLoopResultBuilder]: For program point L38-4(lines 38 39) no Hoare annotation was computed. [2021-11-22 14:36:01,279 INFO L858 garLoopResultBuilder]: For program point L38-7(lines 38 39) no Hoare annotation was computed. [2021-11-22 14:36:01,279 INFO L854 garLoopResultBuilder]: At program point L38-8(lines 38 39) the Hoare annotation is: false [2021-11-22 14:36:01,279 INFO L858 garLoopResultBuilder]: For program point L38-9(lines 38 39) no Hoare annotation was computed. [2021-11-22 14:36:01,279 INFO L858 garLoopResultBuilder]: For program point L237(line 237) no Hoare annotation was computed. [2021-11-22 14:36:01,279 INFO L861 garLoopResultBuilder]: At program point L240(lines 224 241) the Hoare annotation is: true [2021-11-22 14:36:01,279 INFO L858 garLoopResultBuilder]: For program point L141(lines 141 145) no Hoare annotation was computed. [2021-11-22 14:36:01,280 INFO L858 garLoopResultBuilder]: For program point L141-1(lines 123 146) no Hoare annotation was computed. [2021-11-22 14:36:01,280 INFO L858 garLoopResultBuilder]: For program point L75-1(lines 75 79) no Hoare annotation was computed. [2021-11-22 14:36:01,280 INFO L854 garLoopResultBuilder]: At program point L75-2(lines 75 79) the Hoare annotation is: false [2021-11-22 14:36:01,280 INFO L858 garLoopResultBuilder]: For program point L75-3(lines 75 79) no Hoare annotation was computed. [2021-11-22 14:36:01,280 INFO L858 garLoopResultBuilder]: For program point L75-5(lines 75 79) no Hoare annotation was computed. [2021-11-22 14:36:01,280 INFO L854 garLoopResultBuilder]: At program point L75-6(lines 75 79) the Hoare annotation is: false [2021-11-22 14:36:01,280 INFO L858 garLoopResultBuilder]: For program point L75-7(lines 75 79) no Hoare annotation was computed. [2021-11-22 14:36:01,280 INFO L858 garLoopResultBuilder]: For program point L109(lines 109 113) no Hoare annotation was computed. [2021-11-22 14:36:01,280 INFO L858 garLoopResultBuilder]: For program point L109-1(lines 83 210) no Hoare annotation was computed. [2021-11-22 14:36:01,280 INFO L854 garLoopResultBuilder]: At program point L209(lines 83 210) the Hoare annotation is: (or (exists ((|v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_26| (_ BitVec 32)) (|v_ULTIMATE.start___ieee754_hypotf_~#sf_u~2#1.base_5| (_ BitVec 32)) (|v_ULTIMATE.start___ieee754_hypotf_~hb~0#1_27| (_ BitVec 32))) (let ((.cse1 (bvand (_ bv2147483647 32) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_26|)) (.cse0 (select (select |#memory_int| |v_ULTIMATE.start___ieee754_hypotf_~#sf_u~2#1.base_5|) (_ bv0 32)))) (and (= (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_26|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_26|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_26|)) (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) (= (bvand (_ bv2147483647 32) |v_ULTIMATE.start___ieee754_hypotf_~hb~0#1_27|) .cse0) (= |ULTIMATE.start___ieee754_hypotf_#res#1| (fp.add roundNearestTiesToEven (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))) (bvsgt (bvadd .cse1 (bvneg .cse0)) (_ bv251658240 32))))) (and (forall ((|v_skolemized_q#valueAsBitvector_16| (_ BitVec 32))) (or (= (bvand (_ bv2147483647 32) |v_skolemized_q#valueAsBitvector_16|) (_ bv2139095040 32)) (not (= |ULTIMATE.start___ieee754_hypotf_#res#1| (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_16|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_16|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_16|)))))) (not (bvsgt (bvadd |ULTIMATE.start___ieee754_hypotf_~ha~0#1| (bvneg |ULTIMATE.start___ieee754_hypotf_~hb~0#1|)) (_ bv251658240 32))))) [2021-11-22 14:36:01,281 INFO L858 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2021-11-22 14:36:01,281 INFO L858 garLoopResultBuilder]: For program point L44-2(lines 44 45) no Hoare annotation was computed. [2021-11-22 14:36:01,281 INFO L858 garLoopResultBuilder]: For program point L44-3(lines 44 45) no Hoare annotation was computed. [2021-11-22 14:36:01,281 INFO L858 garLoopResultBuilder]: For program point L44-5(lines 44 45) no Hoare annotation was computed. [2021-11-22 14:36:01,281 INFO L858 garLoopResultBuilder]: For program point L177(lines 177 200) no Hoare annotation was computed. [2021-11-22 14:36:01,281 INFO L858 garLoopResultBuilder]: For program point L177-2(lines 83 210) no Hoare annotation was computed. [2021-11-22 14:36:01,281 INFO L858 garLoopResultBuilder]: For program point L178-1(lines 178 182) no Hoare annotation was computed. [2021-11-22 14:36:01,281 INFO L854 garLoopResultBuilder]: At program point L178-2(lines 178 182) the Hoare annotation is: false [2021-11-22 14:36:01,281 INFO L858 garLoopResultBuilder]: For program point L178-3(lines 178 182) no Hoare annotation was computed. [2021-11-22 14:36:01,281 INFO L854 garLoopResultBuilder]: At program point L80(lines 16 81) the Hoare annotation is: false [2021-11-22 14:36:01,282 INFO L854 garLoopResultBuilder]: At program point L80-1(lines 16 81) the Hoare annotation is: false [2021-11-22 14:36:01,282 INFO L858 garLoopResultBuilder]: For program point L147(lines 147 174) no Hoare annotation was computed. [2021-11-22 14:36:01,282 INFO L858 garLoopResultBuilder]: For program point L114(lines 114 118) no Hoare annotation was computed. [2021-11-22 14:36:01,282 INFO L858 garLoopResultBuilder]: For program point L114-1(lines 83 210) no Hoare annotation was computed. [2021-11-22 14:36:01,282 INFO L858 garLoopResultBuilder]: For program point L114-2(lines 83 210) no Hoare annotation was computed. [2021-11-22 14:36:01,282 INFO L858 garLoopResultBuilder]: For program point L148(lines 148 173) no Hoare annotation was computed. [2021-11-22 14:36:01,283 INFO L858 garLoopResultBuilder]: For program point L215-1(lines 215 219) no Hoare annotation was computed. [2021-11-22 14:36:01,283 INFO L854 garLoopResultBuilder]: At program point L215-2(lines 215 219) the Hoare annotation is: (or (exists ((|v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_26| (_ BitVec 32)) (|v_ULTIMATE.start___ieee754_hypotf_~#sf_u~2#1.base_5| (_ BitVec 32)) (|v_ULTIMATE.start___ieee754_hypotf_~hb~0#1_27| (_ BitVec 32))) (let ((.cse0 (bvand (_ bv2147483647 32) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_26|)) (.cse1 (select (select |#memory_int| |v_ULTIMATE.start___ieee754_hypotf_~#sf_u~2#1.base_5|) (_ bv0 32)))) (and (= (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_26|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_26|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_26|)) (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) (= |ULTIMATE.start_isinf_float_~x#1| (fp.add roundNearestTiesToEven (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)))) (= (bvand (_ bv2147483647 32) |v_ULTIMATE.start___ieee754_hypotf_~hb~0#1_27|) .cse1) (bvsgt (bvadd .cse0 (bvneg .cse1)) (_ bv251658240 32))))) (and (not (bvsgt (bvadd |ULTIMATE.start___ieee754_hypotf_~ha~0#1| (bvneg |ULTIMATE.start___ieee754_hypotf_~hb~0#1|)) (_ bv251658240 32))) (forall ((|v_skolemized_q#valueAsBitvector_16| (_ BitVec 32))) (or (= (bvand (_ bv2147483647 32) |v_skolemized_q#valueAsBitvector_16|) (_ bv2139095040 32)) (not (= (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_16|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_16|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_16|)) |ULTIMATE.start_isinf_float_~x#1|)))))) [2021-11-22 14:36:01,283 INFO L858 garLoopResultBuilder]: For program point L215-3(lines 215 219) no Hoare annotation was computed. [2021-11-22 14:36:01,283 INFO L858 garLoopResultBuilder]: For program point L150(lines 150 173) no Hoare annotation was computed. [2021-11-22 14:36:01,283 INFO L858 garLoopResultBuilder]: For program point L151-1(lines 151 155) no Hoare annotation was computed. [2021-11-22 14:36:01,283 INFO L854 garLoopResultBuilder]: At program point L151-2(lines 151 155) the Hoare annotation is: false [2021-11-22 14:36:01,283 INFO L858 garLoopResultBuilder]: For program point L151-3(lines 151 155) no Hoare annotation was computed. [2021-11-22 14:36:01,283 INFO L854 garLoopResultBuilder]: At program point L52-2(lines 52 61) the Hoare annotation is: false [2021-11-22 14:36:01,283 INFO L858 garLoopResultBuilder]: For program point L52-3(lines 16 81) no Hoare annotation was computed. [2021-11-22 14:36:01,283 INFO L854 garLoopResultBuilder]: At program point L52-6(lines 52 61) the Hoare annotation is: false [2021-11-22 14:36:01,283 INFO L858 garLoopResultBuilder]: For program point L52-7(lines 16 81) no Hoare annotation was computed. [2021-11-22 14:36:01,283 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-22 14:36:01,284 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 87 91) no Hoare annotation was computed. [2021-11-22 14:36:01,284 INFO L858 garLoopResultBuilder]: For program point L54(lines 54 58) no Hoare annotation was computed. [2021-11-22 14:36:01,284 INFO L854 garLoopResultBuilder]: At program point L87-2(lines 87 91) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start___ieee754_hypotf_~x#1|)) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-22 14:36:01,284 INFO L858 garLoopResultBuilder]: For program point L87-3(lines 87 91) no Hoare annotation was computed. [2021-11-22 14:36:01,284 INFO L858 garLoopResultBuilder]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2021-11-22 14:36:01,284 INFO L858 garLoopResultBuilder]: For program point L54-2(lines 54 58) no Hoare annotation was computed. [2021-11-22 14:36:01,284 INFO L854 garLoopResultBuilder]: At program point L21-2(lines 21 25) the Hoare annotation is: false [2021-11-22 14:36:01,284 INFO L858 garLoopResultBuilder]: For program point L54-3(lines 54 58) no Hoare annotation was computed. [2021-11-22 14:36:01,284 INFO L858 garLoopResultBuilder]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2021-11-22 14:36:01,284 INFO L858 garLoopResultBuilder]: For program point L54-5(lines 54 58) no Hoare annotation was computed. [2021-11-22 14:36:01,284 INFO L858 garLoopResultBuilder]: For program point L21-5(lines 21 25) no Hoare annotation was computed. [2021-11-22 14:36:01,285 INFO L854 garLoopResultBuilder]: At program point L21-6(lines 21 25) the Hoare annotation is: false [2021-11-22 14:36:01,285 INFO L858 garLoopResultBuilder]: For program point L21-7(lines 21 25) no Hoare annotation was computed. [2021-11-22 14:36:01,285 INFO L858 garLoopResultBuilder]: For program point L187-1(lines 187 191) no Hoare annotation was computed. [2021-11-22 14:36:01,285 INFO L854 garLoopResultBuilder]: At program point L187-2(lines 187 191) the Hoare annotation is: false [2021-11-22 14:36:01,285 INFO L858 garLoopResultBuilder]: For program point L187-3(lines 187 191) no Hoare annotation was computed. [2021-11-22 14:36:01,285 INFO L854 garLoopResultBuilder]: At program point L221(lines 213 222) the Hoare annotation is: (or (= |ULTIMATE.start_isinf_float_#res#1| (_ bv1 32)) (and (not (= |ULTIMATE.start_isinf_float_#res#1| (_ bv0 32))) (not (bvsgt (bvadd |ULTIMATE.start___ieee754_hypotf_~ha~0#1| (bvneg |ULTIMATE.start___ieee754_hypotf_~hb~0#1|)) (_ bv251658240 32))))) [2021-11-22 14:36:01,285 INFO L858 garLoopResultBuilder]: For program point L123(lines 123 146) no Hoare annotation was computed. [2021-11-22 14:36:01,285 INFO L858 garLoopResultBuilder]: For program point L123-1(lines 83 210) no Hoare annotation was computed. [2021-11-22 14:36:01,285 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-22 14:36:01,285 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 131) no Hoare annotation was computed. [2021-11-22 14:36:01,285 INFO L858 garLoopResultBuilder]: For program point L126(lines 126 127) no Hoare annotation was computed. [2021-11-22 14:36:01,286 INFO L858 garLoopResultBuilder]: For program point L93-1(lines 93 97) no Hoare annotation was computed. [2021-11-22 14:36:01,286 INFO L858 garLoopResultBuilder]: For program point L126-2(lines 124 131) no Hoare annotation was computed. [2021-11-22 14:36:01,286 INFO L854 garLoopResultBuilder]: At program point L93-2(lines 93 97) the Hoare annotation is: (and (exists ((|v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_80| (_ BitVec 32))) (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_80|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_80|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_80|)))) (= (bvand (_ bv2147483647 32) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_80|) |ULTIMATE.start___ieee754_hypotf_~ha~0#1|))) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-22 14:36:01,286 INFO L858 garLoopResultBuilder]: For program point L93-3(lines 93 97) no Hoare annotation was computed. [2021-11-22 14:36:01,286 INFO L858 garLoopResultBuilder]: For program point L193-1(lines 193 197) no Hoare annotation was computed. [2021-11-22 14:36:01,286 INFO L854 garLoopResultBuilder]: At program point L193-2(lines 193 197) the Hoare annotation is: false [2021-11-22 14:36:01,287 INFO L858 garLoopResultBuilder]: For program point L193-3(lines 193 197) no Hoare annotation was computed. [2021-11-22 14:36:01,287 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-22 14:36:01,287 INFO L858 garLoopResultBuilder]: For program point L28(lines 28 29) no Hoare annotation was computed. [2021-11-22 14:36:01,287 INFO L858 garLoopResultBuilder]: For program point L28-1(lines 28 29) no Hoare annotation was computed. [2021-11-22 14:36:01,287 INFO L858 garLoopResultBuilder]: For program point L128-1(lines 128 129) no Hoare annotation was computed. [2021-11-22 14:36:01,287 INFO L858 garLoopResultBuilder]: For program point L63(lines 63 72) no Hoare annotation was computed. [2021-11-22 14:36:01,287 INFO L858 garLoopResultBuilder]: For program point L63-1(lines 63 72) no Hoare annotation was computed. [2021-11-22 14:36:01,288 INFO L858 garLoopResultBuilder]: For program point L163-1(lines 163 167) no Hoare annotation was computed. [2021-11-22 14:36:01,288 INFO L854 garLoopResultBuilder]: At program point L163-2(lines 163 167) the Hoare annotation is: false [2021-11-22 14:36:01,288 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2021-11-22 14:36:01,288 INFO L858 garLoopResultBuilder]: For program point L31-1(lines 31 32) no Hoare annotation was computed. [2021-11-22 14:36:01,288 INFO L858 garLoopResultBuilder]: For program point L65(lines 65 71) no Hoare annotation was computed. [2021-11-22 14:36:01,288 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-22 14:36:01,288 INFO L858 garLoopResultBuilder]: For program point L65-2(lines 65 71) no Hoare annotation was computed. [2021-11-22 14:36:01,289 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 237) no Hoare annotation was computed. [2021-11-22 14:36:01,289 INFO L858 garLoopResultBuilder]: For program point L99(lines 99 108) no Hoare annotation was computed. [2021-11-22 14:36:01,289 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 34) no Hoare annotation was computed. [2021-11-22 14:36:01,289 INFO L858 garLoopResultBuilder]: For program point L33-1(lines 33 34) no Hoare annotation was computed. [2021-11-22 14:36:01,289 INFO L858 garLoopResultBuilder]: For program point L67(lines 67 70) no Hoare annotation was computed. [2021-11-22 14:36:01,289 INFO L858 garLoopResultBuilder]: For program point L67-3(lines 67 70) no Hoare annotation was computed. [2021-11-22 14:36:01,292 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:36:01,293 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 14:36:01,299 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:453) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:192) 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) [2021-11-22 14:36:01,306 INFO L158 Benchmark]: Toolchain (without parser) took 179636.91ms. Allocated memory was 67.1MB in the beginning and 83.9MB in the end (delta: 16.8MB). Free memory was 46.2MB in the beginning and 48.4MB in the end (delta: -2.2MB). Peak memory consumption was 44.4MB. Max. memory is 16.1GB. [2021-11-22 14:36:01,306 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 67.1MB. Free memory is still 46.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:36:01,307 INFO L158 Benchmark]: CACSL2BoogieTranslator took 327.63ms. Allocated memory is still 67.1MB. Free memory was 45.9MB in the beginning and 31.5MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-22 14:36:01,308 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.38ms. Allocated memory is still 67.1MB. Free memory was 31.5MB in the beginning and 48.0MB in the end (delta: -16.5MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2021-11-22 14:36:01,308 INFO L158 Benchmark]: Boogie Preprocessor took 57.67ms. Allocated memory is still 67.1MB. Free memory was 48.0MB in the beginning and 45.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 14:36:01,309 INFO L158 Benchmark]: RCFGBuilder took 5971.07ms. Allocated memory is still 67.1MB. Free memory was 45.1MB in the beginning and 41.0MB in the end (delta: 4.1MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2021-11-22 14:36:01,309 INFO L158 Benchmark]: TraceAbstraction took 173182.97ms. Allocated memory was 67.1MB in the beginning and 83.9MB in the end (delta: 16.8MB). Free memory was 40.5MB in the beginning and 48.4MB in the end (delta: -8.0MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. [2021-11-22 14:36:01,311 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 67.1MB. Free memory is still 46.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 327.63ms. Allocated memory is still 67.1MB. Free memory was 45.9MB in the beginning and 31.5MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.38ms. Allocated memory is still 67.1MB. Free memory was 31.5MB in the beginning and 48.0MB in the end (delta: -16.5MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.67ms. Allocated memory is still 67.1MB. Free memory was 48.0MB in the beginning and 45.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 5971.07ms. Allocated memory is still 67.1MB. Free memory was 45.1MB in the beginning and 41.0MB in the end (delta: 4.1MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * TraceAbstraction took 173182.97ms. Allocated memory was 67.1MB in the beginning and 83.9MB in the end (delta: 16.8MB). Free memory was 40.5MB in the beginning and 48.4MB in the end (delta: -8.0MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 237]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 173.1s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 11.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 592 SdHoareTripleChecker+Valid, 6.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 592 mSDsluCounter, 12440 SdHoareTripleChecker+Invalid, 6.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 901 IncrementalHoareTripleChecker+Unchecked, 10759 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 227 IncrementalHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 1681 mSDtfsCounter, 227 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 744 GetRequests, 589 SyntacticMatches, 9 SemanticMatches, 146 ConstructedPredicates, 2 IntricatePredicates, 4 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 105.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=7, InterpolantAutomatonStates: 113, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 198 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 23 LocationsWithAnnotation, 23 PreInvPairs, 38 NumberOfFragments, 275 HoareAnnotationTreeSize, 23 FomulaSimplifications, 576 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 23 FomulaSimplificationsInter, 453 FormulaSimplificationTreeSizeReductionInter, 2.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 152.2s InterpolantComputationTime, 380 NumberOfCodeBlocks, 380 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 732 ConstructedInterpolants, 248 QuantifiedInterpolants, 7266 SizeOfPredicates, 115 NumberOfNonLiveVariables, 1338 ConjunctsInSsa, 161 ConjunctsInUnsatCore, 28 InterpolantComputations, 28 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-22 14:36:01,531 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-22 14:36:01,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f7cdf9-13a2-4e8f-bead-f6715b94c4b8/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias