./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound20.c --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_fa081414-c5c0-4070-a1d5-d805fb38b1dc/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa081414-c5c0-4070-a1d5-d805fb38b1dc/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_fa081414-c5c0-4070-a1d5-d805fb38b1dc/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa081414-c5c0-4070-a1d5-d805fb38b1dc/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa081414-c5c0-4070-a1d5-d805fb38b1dc/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_fa081414-c5c0-4070-a1d5-d805fb38b1dc/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 8266a4ea95b9e4223f8b08ac8ccf14874ced037158e20412a04b64da93889ae0 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 23:11:17,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 23:11:17,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 23:11:17,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 23:11:17,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 23:11:17,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 23:11:17,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 23:11:17,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 23:11:17,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 23:11:17,402 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 23:11:17,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 23:11:17,404 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 23:11:17,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 23:11:17,406 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 23:11:17,407 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 23:11:17,409 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 23:11:17,410 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 23:11:17,411 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 23:11:17,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 23:11:17,415 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 23:11:17,417 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 23:11:17,418 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 23:11:17,420 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 23:11:17,420 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 23:11:17,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 23:11:17,424 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 23:11:17,425 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 23:11:17,426 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 23:11:17,426 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 23:11:17,427 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 23:11:17,428 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 23:11:17,429 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 23:11:17,429 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 23:11:17,430 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 23:11:17,431 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 23:11:17,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 23:11:17,432 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 23:11:17,432 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 23:11:17,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 23:11:17,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 23:11:17,434 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 23:11:17,435 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa081414-c5c0-4070-a1d5-d805fb38b1dc/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 23:11:17,456 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 23:11:17,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 23:11:17,457 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 23:11:17,457 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 23:11:17,457 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 23:11:17,458 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 23:11:17,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 23:11:17,458 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 23:11:17,459 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 23:11:17,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 23:11:17,459 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 23:11:17,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 23:11:17,459 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 23:11:17,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 23:11:17,460 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 23:11:17,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 23:11:17,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 23:11:17,460 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 23:11:17,460 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 23:11:17,461 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 23:11:17,461 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 23:11:17,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 23:11:17,461 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 23:11:17,461 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 23:11:17,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:11:17,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 23:11:17,462 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 23:11:17,462 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 23:11:17,462 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 23:11:17,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 23:11:17,463 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 23:11:17,463 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 23:11:17,463 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 23:11:17,463 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 23:11:17,463 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_fa081414-c5c0-4070-a1d5-d805fb38b1dc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa081414-c5c0-4070-a1d5-d805fb38b1dc/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8266a4ea95b9e4223f8b08ac8ccf14874ced037158e20412a04b64da93889ae0 [2021-12-06 23:11:17,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 23:11:17,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 23:11:17,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 23:11:17,686 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 23:11:17,687 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 23:11:17,687 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa081414-c5c0-4070-a1d5-d805fb38b1dc/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound20.c [2021-12-06 23:11:17,729 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa081414-c5c0-4070-a1d5-d805fb38b1dc/bin/uautomizer-DrprNOufMa/data/6af79c81c/d6d08348bbf64056b0fb71c575ffcdfa/FLAG8fdcf3847 [2021-12-06 23:11:18,078 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 23:11:18,079 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa081414-c5c0-4070-a1d5-d805fb38b1dc/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound20.c [2021-12-06 23:11:18,084 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa081414-c5c0-4070-a1d5-d805fb38b1dc/bin/uautomizer-DrprNOufMa/data/6af79c81c/d6d08348bbf64056b0fb71c575ffcdfa/FLAG8fdcf3847 [2021-12-06 23:11:18,093 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa081414-c5c0-4070-a1d5-d805fb38b1dc/bin/uautomizer-DrprNOufMa/data/6af79c81c/d6d08348bbf64056b0fb71c575ffcdfa [2021-12-06 23:11:18,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 23:11:18,096 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 23:11:18,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 23:11:18,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 23:11:18,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 23:11:18,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:11:18" (1/1) ... [2021-12-06 23:11:18,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c96ea55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:11:18, skipping insertion in model container [2021-12-06 23:11:18,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:11:18" (1/1) ... [2021-12-06 23:11:18,106 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 23:11:18,116 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 23:11:18,237 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_fa081414-c5c0-4070-a1d5-d805fb38b1dc/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound20.c[546,559] [2021-12-06 23:11:18,247 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:11:18,252 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 23:11:18,261 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_fa081414-c5c0-4070-a1d5-d805fb38b1dc/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound20.c[546,559] [2021-12-06 23:11:18,265 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:11:18,274 INFO L208 MainTranslator]: Completed translation [2021-12-06 23:11:18,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:11:18 WrapperNode [2021-12-06 23:11:18,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 23:11:18,275 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 23:11:18,275 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 23:11:18,275 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 23:11:18,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:11:18" (1/1) ... [2021-12-06 23:11:18,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:11:18" (1/1) ... [2021-12-06 23:11:18,304 INFO L137 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2021-12-06 23:11:18,304 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 23:11:18,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 23:11:18,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 23:11:18,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 23:11:18,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:11:18" (1/1) ... [2021-12-06 23:11:18,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:11:18" (1/1) ... [2021-12-06 23:11:18,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:11:18" (1/1) ... [2021-12-06 23:11:18,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:11:18" (1/1) ... [2021-12-06 23:11:18,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:11:18" (1/1) ... [2021-12-06 23:11:18,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:11:18" (1/1) ... [2021-12-06 23:11:18,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:11:18" (1/1) ... [2021-12-06 23:11:18,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 23:11:18,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 23:11:18,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 23:11:18,324 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 23:11:18,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:11:18" (1/1) ... [2021-12-06 23:11:18,332 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:11:18,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa081414-c5c0-4070-a1d5-d805fb38b1dc/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:11:18,352 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa081414-c5c0-4070-a1d5-d805fb38b1dc/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 23:11:18,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa081414-c5c0-4070-a1d5-d805fb38b1dc/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 23:11:18,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 23:11:18,383 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 23:11:18,383 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 23:11:18,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 23:11:18,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 23:11:18,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 23:11:18,384 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-06 23:11:18,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-06 23:11:18,430 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 23:11:18,431 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 23:11:18,499 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 23:11:18,504 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 23:11:18,504 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 23:11:18,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:11:18 BoogieIcfgContainer [2021-12-06 23:11:18,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 23:11:18,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 23:11:18,507 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 23:11:18,509 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 23:11:18,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 11:11:18" (1/3) ... [2021-12-06 23:11:18,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f607f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:11:18, skipping insertion in model container [2021-12-06 23:11:18,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:11:18" (2/3) ... [2021-12-06 23:11:18,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f607f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:11:18, skipping insertion in model container [2021-12-06 23:11:18,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:11:18" (3/3) ... [2021-12-06 23:11:18,511 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-ll_valuebound20.c [2021-12-06 23:11:18,515 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 23:11:18,515 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 23:11:18,549 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 23:11:18,555 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 23:11:18,555 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 23:11:18,567 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-06 23:11:18,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-06 23:11:18,571 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:11:18,572 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:11:18,572 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:11:18,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:11:18,576 INFO L85 PathProgramCache]: Analyzing trace with hash -439363615, now seen corresponding path program 1 times [2021-12-06 23:11:18,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:11:18,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766333408] [2021-12-06 23:11:18,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:11:18,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:11:18,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:11:18,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:11:18,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:11:18,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 23:11:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:11:18,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 23:11:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:11:18,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:11:18,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:11:18,714 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-06 23:11:18,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:11:18,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766333408] [2021-12-06 23:11:18,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766333408] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:11:18,716 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:11:18,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 23:11:18,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741621703] [2021-12-06 23:11:18,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:11:18,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 23:11:18,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:11:18,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 23:11:18,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 23:11:18,748 INFO L87 Difference]: Start difference. First operand has 27 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-06 23:11:18,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:11:18,763 INFO L93 Difference]: Finished difference Result 51 states and 72 transitions. [2021-12-06 23:11:18,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 23:11:18,765 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 29 [2021-12-06 23:11:18,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:11:18,770 INFO L225 Difference]: With dead ends: 51 [2021-12-06 23:11:18,770 INFO L226 Difference]: Without dead ends: 23 [2021-12-06 23:11:18,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 23:11:18,775 INFO L933 BasicCegarLoop]: 31 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, 31 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 [2021-12-06 23:11:18,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:11:18,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-12-06 23:11:18,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-12-06 23:11:18,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-06 23:11:18,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-12-06 23:11:18,802 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 29 [2021-12-06 23:11:18,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:11:18,803 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-12-06 23:11:18,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-06 23:11:18,803 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-12-06 23:11:18,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-06 23:11:18,804 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:11:18,805 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:11:18,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 23:11:18,805 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:11:18,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:11:18,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1976149669, now seen corresponding path program 1 times [2021-12-06 23:11:18,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:11:18,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105849621] [2021-12-06 23:11:18,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:11:18,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:11:18,824 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 23:11:18,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1693836205] [2021-12-06 23:11:18,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:11:18,825 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:11:18,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa081414-c5c0-4070-a1d5-d805fb38b1dc/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:11:18,826 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa081414-c5c0-4070-a1d5-d805fb38b1dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 23:11:18,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa081414-c5c0-4070-a1d5-d805fb38b1dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 23:11:18,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:11:18,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 23:11:18,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:11:18,993 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-06 23:11:18,993 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:11:18,993 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:11:18,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105849621] [2021-12-06 23:11:19,000 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 23:11:19,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693836205] [2021-12-06 23:11:19,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693836205] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:11:19,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:11:19,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 23:11:19,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154749397] [2021-12-06 23:11:19,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:11:19,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:11:19,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:11:19,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:11:19,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:11:19,003 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-06 23:11:19,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:11:19,047 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2021-12-06 23:11:19,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:11:19,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 29 [2021-12-06 23:11:19,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:11:19,049 INFO L225 Difference]: With dead ends: 33 [2021-12-06 23:11:19,049 INFO L226 Difference]: Without dead ends: 31 [2021-12-06 23:11:19,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 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 23:11:19,051 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 6 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:11:19,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 88 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:11:19,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-12-06 23:11:19,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2021-12-06 23:11:19,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 20 states have internal predecessors, (20), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-06 23:11:19,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2021-12-06 23:11:19,059 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 29 [2021-12-06 23:11:19,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:11:19,060 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2021-12-06 23:11:19,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-06 23:11:19,060 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2021-12-06 23:11:19,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-06 23:11:19,061 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:11:19,061 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:11:19,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa081414-c5c0-4070-a1d5-d805fb38b1dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 23:11:19,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa081414-c5c0-4070-a1d5-d805fb38b1dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:11:19,263 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:11:19,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:11:19,266 INFO L85 PathProgramCache]: Analyzing trace with hash -900153941, now seen corresponding path program 1 times [2021-12-06 23:11:19,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:11:19,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177181835] [2021-12-06 23:11:19,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:11:19,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:11:19,327 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 23:11:19,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1491313997] [2021-12-06 23:11:19,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:11:19,329 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:11:19,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa081414-c5c0-4070-a1d5-d805fb38b1dc/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:11:19,333 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa081414-c5c0-4070-a1d5-d805fb38b1dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 23:11:19,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa081414-c5c0-4070-a1d5-d805fb38b1dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 23:11:19,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:11:19,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 23:11:19,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:11:19,591 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-06 23:11:19,591 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:11:19,708 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-06 23:11:19,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:11:19,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177181835] [2021-12-06 23:11:19,709 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 23:11:19,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491313997] [2021-12-06 23:11:19,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491313997] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 23:11:19,709 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 23:11:19,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2021-12-06 23:11:19,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731586883] [2021-12-06 23:11:19,710 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 23:11:19,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 23:11:19,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:11:19,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 23:11:19,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:11:19,711 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 10 states, 8 states have (on average 2.375) internal successors, (19), 9 states have internal predecessors, (19), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-06 23:11:19,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:11:19,988 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2021-12-06 23:11:19,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:11:19,989 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.375) internal successors, (19), 9 states have internal predecessors, (19), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 36 [2021-12-06 23:11:19,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:11:19,989 INFO L225 Difference]: With dead ends: 29 [2021-12-06 23:11:19,989 INFO L226 Difference]: Without dead ends: 0 [2021-12-06 23:11:19,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 61 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-12-06 23:11:19,991 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 9 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 23:11:19,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 107 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 23:11:19,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-06 23:11:19,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-06 23:11:19,993 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) [2021-12-06 23:11:19,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 23:11:19,993 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2021-12-06 23:11:19,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:11:19,994 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 23:11:19,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 2.375) internal successors, (19), 9 states have internal predecessors, (19), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-06 23:11:19,994 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-06 23:11:19,994 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-06 23:11:19,996 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 23:11:20,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa081414-c5c0-4070-a1d5-d805fb38b1dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 23:11:20,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa081414-c5c0-4070-a1d5-d805fb38b1dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:11:20,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-06 23:11:20,236 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-06 23:11:20,237 INFO L861 garLoopResultBuilder]: At program point L29(line 29) the Hoare annotation is: true [2021-12-06 23:11:20,237 INFO L854 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: (= |ULTIMATE.start_main_~y~0#1| (+ |ULTIMATE.start_main_~x~0#1| 1)) [2021-12-06 23:11:20,237 INFO L858 garLoopResultBuilder]: For program point L50-1(line 50) no Hoare annotation was computed. [2021-12-06 23:11:20,237 INFO L854 garLoopResultBuilder]: At program point L36-2(lines 36 46) the Hoare annotation is: (= (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|) (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|) 1)) [2021-12-06 23:11:20,237 INFO L858 garLoopResultBuilder]: For program point L36-3(lines 36 46) no Hoare annotation was computed. [2021-12-06 23:11:20,238 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-06 23:11:20,238 INFO L858 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2021-12-06 23:11:20,238 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-06 23:11:20,238 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-06 23:11:20,238 INFO L861 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: true [2021-12-06 23:11:20,238 INFO L861 garLoopResultBuilder]: At program point L28-1(line 28) the Hoare annotation is: true [2021-12-06 23:11:20,238 INFO L861 garLoopResultBuilder]: At program point L26(line 26) the Hoare annotation is: true [2021-12-06 23:11:20,239 INFO L858 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2021-12-06 23:11:20,239 INFO L861 garLoopResultBuilder]: At program point L51(lines 22 52) the Hoare annotation is: true [2021-12-06 23:11:20,239 INFO L854 garLoopResultBuilder]: At program point L37(line 37) the Hoare annotation is: (= (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|) (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|) 1)) [2021-12-06 23:11:20,239 INFO L858 garLoopResultBuilder]: For program point L37-1(lines 36 46) no Hoare annotation was computed. [2021-12-06 23:11:20,239 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 12 14) the Hoare annotation is: true [2021-12-06 23:11:20,239 INFO L858 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2021-12-06 23:11:20,240 INFO L858 garLoopResultBuilder]: For program point L13-2(lines 12 14) no Hoare annotation was computed. [2021-12-06 23:11:20,240 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 12 14) no Hoare annotation was computed. [2021-12-06 23:11:20,240 INFO L858 garLoopResultBuilder]: For program point L17(lines 17 18) no Hoare annotation was computed. [2021-12-06 23:11:20,240 INFO L858 garLoopResultBuilder]: For program point L16(lines 16 19) no Hoare annotation was computed. [2021-12-06 23:11:20,240 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 15 21) the Hoare annotation is: true [2021-12-06 23:11:20,240 INFO L858 garLoopResultBuilder]: For program point L16-2(lines 15 21) no Hoare annotation was computed. [2021-12-06 23:11:20,240 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 15 21) no Hoare annotation was computed. [2021-12-06 23:11:20,241 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2021-12-06 23:11:20,244 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-06 23:11:20,245 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 23:11:20,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 11:11:20 BoogieIcfgContainer [2021-12-06 23:11:20,257 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 23:11:20,258 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 23:11:20,258 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 23:11:20,258 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 23:11:20,259 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:11:18" (3/4) ... [2021-12-06 23:11:20,261 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-06 23:11:20,267 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-12-06 23:11:20,267 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-12-06 23:11:20,271 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-12-06 23:11:20,271 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-06 23:11:20,271 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-06 23:11:20,271 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-06 23:11:20,298 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa081414-c5c0-4070-a1d5-d805fb38b1dc/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 23:11:20,298 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 23:11:20,299 INFO L158 Benchmark]: Toolchain (without parser) took 2203.01ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 63.7MB in the beginning and 63.4MB in the end (delta: 314.0kB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2021-12-06 23:11:20,299 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 104.9MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 23:11:20,299 INFO L158 Benchmark]: CACSL2BoogieTranslator took 177.57ms. Allocated memory is still 104.9MB. Free memory was 63.5MB in the beginning and 79.9MB in the end (delta: -16.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 23:11:20,299 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.66ms. Allocated memory is still 104.9MB. Free memory was 79.9MB in the beginning and 78.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 23:11:20,300 INFO L158 Benchmark]: Boogie Preprocessor took 18.39ms. Allocated memory is still 104.9MB. Free memory was 78.4MB in the beginning and 77.3MB in the end (delta: 1.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 23:11:20,300 INFO L158 Benchmark]: RCFGBuilder took 181.26ms. Allocated memory is still 104.9MB. Free memory was 77.3MB in the beginning and 67.8MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 23:11:20,300 INFO L158 Benchmark]: TraceAbstraction took 1750.68ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 67.3MB in the beginning and 66.7MB in the end (delta: 658.1kB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2021-12-06 23:11:20,300 INFO L158 Benchmark]: Witness Printer took 40.48ms. Allocated memory is still 125.8MB. Free memory was 66.4MB in the beginning and 63.4MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 23:11:20,302 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 104.9MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 177.57ms. Allocated memory is still 104.9MB. Free memory was 63.5MB in the beginning and 79.9MB in the end (delta: -16.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.66ms. Allocated memory is still 104.9MB. Free memory was 79.9MB in the beginning and 78.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.39ms. Allocated memory is still 104.9MB. Free memory was 78.4MB in the beginning and 77.3MB in the end (delta: 1.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 181.26ms. Allocated memory is still 104.9MB. Free memory was 77.3MB in the beginning and 67.8MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1750.68ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 67.3MB in the beginning and 66.7MB in the end (delta: 658.1kB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. * Witness Printer took 40.48ms. Allocated memory is still 125.8MB. Free memory was 66.4MB in the beginning and 63.4MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. 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: 18]: 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 3 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 3, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 226 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 152 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 74 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 100 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=2, InterpolantAutomatonStates: 13, 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 20 PreInvPairs, 29 NumberOfFragments, 30 HoareAnnotationTreeSize, 20 FomulaSimplifications, 34 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 126 ConstructedInterpolants, 1 QuantifiedInterpolants, 224 SizeOfPredicates, 4 NumberOfNonLiveVariables, 178 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 98/100 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: x + y == x * z + 1 RESULT: Ultimate proved your program to be correct! [2021-12-06 23:11:20,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa081414-c5c0-4070-a1d5-d805fb38b1dc/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE