./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/id_trans.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5a2f70-2e99-4953-abaf-df5a85144a88/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5a2f70-2e99-4953-abaf-df5a85144a88/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5a2f70-2e99-4953-abaf-df5a85144a88/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5a2f70-2e99-4953-abaf-df5a85144a88/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/id_trans.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5a2f70-2e99-4953-abaf-df5a85144a88/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5a2f70-2e99-4953-abaf-df5a85144a88/bin/uautomizer-DrprNOufMa --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 6aaead44d7f76ddac498383f5d9663622bc4506781697c14d3a4988231066e32 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 22:35:01,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 22:35:01,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 22:35:01,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 22:35:01,161 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 22:35:01,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 22:35:01,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 22:35:01,166 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 22:35:01,168 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 22:35:01,169 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 22:35:01,170 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 22:35:01,171 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 22:35:01,172 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 22:35:01,173 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 22:35:01,174 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 22:35:01,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 22:35:01,176 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 22:35:01,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 22:35:01,179 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 22:35:01,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 22:35:01,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 22:35:01,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 22:35:01,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 22:35:01,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 22:35:01,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 22:35:01,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 22:35:01,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 22:35:01,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 22:35:01,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 22:35:01,194 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 22:35:01,194 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 22:35:01,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 22:35:01,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 22:35:01,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 22:35:01,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 22:35:01,198 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 22:35:01,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 22:35:01,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 22:35:01,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 22:35:01,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 22:35:01,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 22:35:01,201 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5a2f70-2e99-4953-abaf-df5a85144a88/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 22:35:01,223 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 22:35:01,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 22:35:01,223 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 22:35:01,223 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 22:35:01,224 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 22:35:01,224 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 22:35:01,224 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 22:35:01,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 22:35:01,225 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 22:35:01,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 22:35:01,225 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 22:35:01,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 22:35:01,225 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 22:35:01,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 22:35:01,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 22:35:01,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 22:35:01,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 22:35:01,226 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 22:35:01,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 22:35:01,226 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 22:35:01,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 22:35:01,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 22:35:01,227 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 22:35:01,227 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 22:35:01,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:35:01,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 22:35:01,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 22:35:01,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 22:35:01,227 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 22:35:01,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 22:35:01,228 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 22:35:01,228 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 22:35:01,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 22:35:01,228 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 22:35:01,228 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_3c5a2f70-2e99-4953-abaf-df5a85144a88/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5a2f70-2e99-4953-abaf-df5a85144a88/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6aaead44d7f76ddac498383f5d9663622bc4506781697c14d3a4988231066e32 [2021-12-06 22:35:01,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 22:35:01,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 22:35:01,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 22:35:01,432 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 22:35:01,432 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 22:35:01,433 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5a2f70-2e99-4953-abaf-df5a85144a88/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/loop-invgen/id_trans.i [2021-12-06 22:35:01,473 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5a2f70-2e99-4953-abaf-df5a85144a88/bin/uautomizer-DrprNOufMa/data/f96a7262e/3619e4ebae1b4ab8bf4fb8f198b05fcc/FLAG8aaf0d58c [2021-12-06 22:35:01,832 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 22:35:01,832 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5a2f70-2e99-4953-abaf-df5a85144a88/sv-benchmarks/c/loop-invgen/id_trans.i [2021-12-06 22:35:01,837 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5a2f70-2e99-4953-abaf-df5a85144a88/bin/uautomizer-DrprNOufMa/data/f96a7262e/3619e4ebae1b4ab8bf4fb8f198b05fcc/FLAG8aaf0d58c [2021-12-06 22:35:01,846 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5a2f70-2e99-4953-abaf-df5a85144a88/bin/uautomizer-DrprNOufMa/data/f96a7262e/3619e4ebae1b4ab8bf4fb8f198b05fcc [2021-12-06 22:35:01,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 22:35:01,849 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 22:35:01,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 22:35:01,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 22:35:01,852 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 22:35:01,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:35:01" (1/1) ... [2021-12-06 22:35:01,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ffb5ee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:35:01, skipping insertion in model container [2021-12-06 22:35:01,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:35:01" (1/1) ... [2021-12-06 22:35:01,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 22:35:01,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 22:35:02,005 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_3c5a2f70-2e99-4953-abaf-df5a85144a88/sv-benchmarks/c/loop-invgen/id_trans.i[893,906] [2021-12-06 22:35:02,014 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:35:02,020 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 22:35:02,029 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_3c5a2f70-2e99-4953-abaf-df5a85144a88/sv-benchmarks/c/loop-invgen/id_trans.i[893,906] [2021-12-06 22:35:02,031 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:35:02,041 INFO L208 MainTranslator]: Completed translation [2021-12-06 22:35:02,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:35:02 WrapperNode [2021-12-06 22:35:02,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 22:35:02,042 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 22:35:02,042 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 22:35:02,042 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 22:35:02,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:35:02" (1/1) ... [2021-12-06 22:35:02,055 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:35:02" (1/1) ... [2021-12-06 22:35:02,071 INFO L137 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 40 [2021-12-06 22:35:02,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 22:35:02,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 22:35:02,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 22:35:02,072 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 22:35:02,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:35:02" (1/1) ... [2021-12-06 22:35:02,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:35:02" (1/1) ... [2021-12-06 22:35:02,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:35:02" (1/1) ... [2021-12-06 22:35:02,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:35:02" (1/1) ... [2021-12-06 22:35:02,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:35:02" (1/1) ... [2021-12-06 22:35:02,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:35:02" (1/1) ... [2021-12-06 22:35:02,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:35:02" (1/1) ... [2021-12-06 22:35:02,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 22:35:02,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 22:35:02,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 22:35:02,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 22:35:02,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:35:02" (1/1) ... [2021-12-06 22:35:02,093 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:35:02,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5a2f70-2e99-4953-abaf-df5a85144a88/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:35:02,116 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5a2f70-2e99-4953-abaf-df5a85144a88/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 22:35:02,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5a2f70-2e99-4953-abaf-df5a85144a88/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 22:35:02,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 22:35:02,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 22:35:02,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 22:35:02,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 22:35:02,152 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-06 22:35:02,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-06 22:35:02,195 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 22:35:02,196 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 22:35:02,267 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 22:35:02,272 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 22:35:02,272 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 22:35:02,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:35:02 BoogieIcfgContainer [2021-12-06 22:35:02,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 22:35:02,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 22:35:02,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 22:35:02,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 22:35:02,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 10:35:01" (1/3) ... [2021-12-06 22:35:02,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e03634d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:35:02, skipping insertion in model container [2021-12-06 22:35:02,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:35:02" (2/3) ... [2021-12-06 22:35:02,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e03634d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:35:02, skipping insertion in model container [2021-12-06 22:35:02,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:35:02" (3/3) ... [2021-12-06 22:35:02,280 INFO L111 eAbstractionObserver]: Analyzing ICFG id_trans.i [2021-12-06 22:35:02,284 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 22:35:02,284 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 22:35:02,320 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 22:35:02,326 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 [2021-12-06 22:35:02,326 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 22:35:02,338 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-06 22:35:02,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-06 22:35:02,341 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:35:02,342 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:35:02,342 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:35:02,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:35:02,347 INFO L85 PathProgramCache]: Analyzing trace with hash 183030306, now seen corresponding path program 1 times [2021-12-06 22:35:02,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:35:02,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815120805] [2021-12-06 22:35:02,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:35:02,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:35:02,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:35:02,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:35:02,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:35:02,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815120805] [2021-12-06 22:35:02,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815120805] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:35:02,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:35:02,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:35:02,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389532696] [2021-12-06 22:35:02,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:35:02,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 22:35:02,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:35:02,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 22:35:02,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:35:02,535 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:35:02,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:35:02,613 INFO L93 Difference]: Finished difference Result 42 states and 56 transitions. [2021-12-06 22:35:02,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 22:35:02,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-06 22:35:02,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:35:02,624 INFO L225 Difference]: With dead ends: 42 [2021-12-06 22:35:02,625 INFO L226 Difference]: Without dead ends: 19 [2021-12-06 22:35:02,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 22:35:02,631 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 10 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 22:35:02,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 60 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 22:35:02,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-12-06 22:35:02,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-12-06 22:35:02,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-06 22:35:02,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-12-06 22:35:02,673 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 8 [2021-12-06 22:35:02,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:35:02,673 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-12-06 22:35:02,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:35:02,674 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-12-06 22:35:02,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 22:35:02,675 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:35:02,675 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:35:02,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 22:35:02,676 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:35:02,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:35:02,677 INFO L85 PathProgramCache]: Analyzing trace with hash 757850780, now seen corresponding path program 1 times [2021-12-06 22:35:02,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:35:02,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403814460] [2021-12-06 22:35:02,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:35:02,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:35:02,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:35:02,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 22:35:02,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:35:02,753 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:35:02,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:35:02,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403814460] [2021-12-06 22:35:02,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403814460] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:35:02,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:35:02,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:35:02,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304710412] [2021-12-06 22:35:02,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:35:02,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 22:35:02,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:35:02,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 22:35:02,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:35:02,757 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 22:35:02,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:35:02,790 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2021-12-06 22:35:02,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 22:35:02,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2021-12-06 22:35:02,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:35:02,792 INFO L225 Difference]: With dead ends: 25 [2021-12-06 22:35:02,792 INFO L226 Difference]: Without dead ends: 23 [2021-12-06 22:35:02,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 22:35:02,794 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 4 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 22:35:02,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 51 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 22:35:02,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-12-06 22:35:02,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-12-06 22:35:02,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-06 22:35:02,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2021-12-06 22:35:02,801 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 13 [2021-12-06 22:35:02,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:35:02,802 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-12-06 22:35:02,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 22:35:02,802 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2021-12-06 22:35:02,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-06 22:35:02,803 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:35:02,803 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:35:02,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 22:35:02,803 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:35:02,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:35:02,804 INFO L85 PathProgramCache]: Analyzing trace with hash -695976420, now seen corresponding path program 1 times [2021-12-06 22:35:02,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:35:02,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665560680] [2021-12-06 22:35:02,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:35:02,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:35:02,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:35:02,836 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:35:02,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:35:02,883 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:35:02,884 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 22:35:02,884 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 22:35:02,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 22:35:02,889 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-06 22:35:02,891 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 22:35:02,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 10:35:02 BoogieIcfgContainer [2021-12-06 22:35:02,910 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 22:35:02,911 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 22:35:02,911 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 22:35:02,911 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 22:35:02,911 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:35:02" (3/4) ... [2021-12-06 22:35:02,913 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-06 22:35:02,945 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5a2f70-2e99-4953-abaf-df5a85144a88/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 22:35:02,945 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 22:35:02,946 INFO L158 Benchmark]: Toolchain (without parser) took 1097.20ms. Allocated memory was 73.4MB in the beginning and 127.9MB in the end (delta: 54.5MB). Free memory was 35.9MB in the beginning and 88.9MB in the end (delta: -53.0MB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. [2021-12-06 22:35:02,946 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 73.4MB. Free memory is still 52.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:35:02,947 INFO L158 Benchmark]: CACSL2BoogieTranslator took 191.26ms. Allocated memory was 73.4MB in the beginning and 127.9MB in the end (delta: 54.5MB). Free memory was 35.7MB in the beginning and 104.2MB in the end (delta: -68.5MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2021-12-06 22:35:02,947 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.50ms. Allocated memory is still 127.9MB. Free memory was 103.8MB in the beginning and 102.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:35:02,947 INFO L158 Benchmark]: Boogie Preprocessor took 13.99ms. Allocated memory is still 127.9MB. Free memory was 102.6MB in the beginning and 101.7MB in the end (delta: 914.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 22:35:02,948 INFO L158 Benchmark]: RCFGBuilder took 187.55ms. Allocated memory is still 127.9MB. Free memory was 101.3MB in the beginning and 92.2MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 22:35:02,948 INFO L158 Benchmark]: TraceAbstraction took 635.00ms. Allocated memory is still 127.9MB. Free memory was 91.8MB in the beginning and 91.0MB in the end (delta: 802.3kB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2021-12-06 22:35:02,948 INFO L158 Benchmark]: Witness Printer took 34.76ms. Allocated memory is still 127.9MB. Free memory was 91.0MB in the beginning and 88.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 22:35:02,950 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 73.4MB. Free memory is still 52.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 191.26ms. Allocated memory was 73.4MB in the beginning and 127.9MB in the end (delta: 54.5MB). Free memory was 35.7MB in the beginning and 104.2MB in the end (delta: -68.5MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.50ms. Allocated memory is still 127.9MB. Free memory was 103.8MB in the beginning and 102.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.99ms. Allocated memory is still 127.9MB. Free memory was 102.6MB in the beginning and 101.7MB in the end (delta: 914.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 187.55ms. Allocated memory is still 127.9MB. Free memory was 101.3MB in the beginning and 92.2MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 635.00ms. Allocated memory is still 127.9MB. Free memory was 91.8MB in the beginning and 91.0MB in the end (delta: 802.3kB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * Witness Printer took 34.76ms. Allocated memory is still 127.9MB. Free memory was 91.0MB in the beginning and 88.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L25] int idBitLength, material_length, nlen; [L26] int j, k; [L27] nlen = __VERIFIER_nondet_int() [L28] idBitLength = __VERIFIER_nondet_int() [L29] material_length = __VERIFIER_nondet_int() [L30] COND FALSE !(!( nlen == idBitLength / 32 )) [L31] j = 0 VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L31] COND TRUE (j < idBitLength / 8) && (j < material_length) VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L32] CALL __VERIFIER_assert( 0 <= j) VAL [\old(cond)=1] [L18] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L32] RET __VERIFIER_assert( 0 <= j) VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L33] CALL __VERIFIER_assert( j < material_length ) VAL [\old(cond)=1] [L18] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L33] RET __VERIFIER_assert( j < material_length ) VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L34] CALL __VERIFIER_assert( 0 <= j/4 ) VAL [\old(cond)=1] [L18] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L34] RET __VERIFIER_assert( 0 <= j/4 ) VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L35] CALL __VERIFIER_assert( j/4 < nlen) VAL [\old(cond)=0] [L18] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L19] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 111 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 76 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 35 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=2, InterpolantAutomatonStates: 12, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 39 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-12-06 22:35:02,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5a2f70-2e99-4953-abaf-df5a85144a88/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE