./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_unwindbound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3eddbc6-5da7-4d1f-ba67-5e9352f7ef57/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3eddbc6-5da7-4d1f-ba67-5e9352f7ef57/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3eddbc6-5da7-4d1f-ba67-5e9352f7ef57/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3eddbc6-5da7-4d1f-ba67-5e9352f7ef57/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3eddbc6-5da7-4d1f-ba67-5e9352f7ef57/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3eddbc6-5da7-4d1f-ba67-5e9352f7ef57/bin/ukojak-LBtLqBUTdQ --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 26bf02dce57f3cc9fa9e6af5bd48026588368cec482f21797d4110581d1b8f61 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:42:49,214 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:42:49,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:42:49,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:42:49,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:42:49,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:42:49,270 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:42:49,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:42:49,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:42:49,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:42:49,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:42:49,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:42:49,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:42:49,281 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:42:49,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:42:49,285 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:42:49,286 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:42:49,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:42:49,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:42:49,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:42:49,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:42:49,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:42:49,298 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:42:49,300 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:42:49,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:42:49,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:42:49,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:42:49,306 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:42:49,307 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:42:49,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:42:49,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:42:49,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:42:49,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:42:49,312 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:42:49,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:42:49,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:42:49,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:42:49,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:42:49,315 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:42:49,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:42:49,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:42:49,318 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3eddbc6-5da7-4d1f-ba67-5e9352f7ef57/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:42:49,344 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:42:49,344 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:42:49,345 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:42:49,345 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:42:49,346 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:42:49,346 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:42:49,346 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:42:49,346 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:42:49,346 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:42:49,347 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:42:49,347 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:42:49,347 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:42:49,347 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:42:49,347 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:42:49,348 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:42:49,348 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:42:49,348 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:42:49,348 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:42:49,349 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:42:49,349 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:42:49,349 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:42:49,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:42:49,349 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:42:49,350 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:42:49,350 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:42:49,350 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:42:49,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:42:49,350 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:42:49,351 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_a3eddbc6-5da7-4d1f-ba67-5e9352f7ef57/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3eddbc6-5da7-4d1f-ba67-5e9352f7ef57/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26bf02dce57f3cc9fa9e6af5bd48026588368cec482f21797d4110581d1b8f61 [2021-11-23 00:42:49,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:42:49,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:42:49,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:42:49,660 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:42:49,667 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:42:49,670 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3eddbc6-5da7-4d1f-ba67-5e9352f7ef57/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_unwindbound2.c [2021-11-23 00:42:49,756 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3eddbc6-5da7-4d1f-ba67-5e9352f7ef57/bin/ukojak-LBtLqBUTdQ/data/0d9f852f8/bb8be17316ea45068200f40a95d2ab30/FLAG353d8d016 [2021-11-23 00:42:50,329 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:42:50,330 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3eddbc6-5da7-4d1f-ba67-5e9352f7ef57/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_unwindbound2.c [2021-11-23 00:42:50,336 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3eddbc6-5da7-4d1f-ba67-5e9352f7ef57/bin/ukojak-LBtLqBUTdQ/data/0d9f852f8/bb8be17316ea45068200f40a95d2ab30/FLAG353d8d016 [2021-11-23 00:42:50,692 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3eddbc6-5da7-4d1f-ba67-5e9352f7ef57/bin/ukojak-LBtLqBUTdQ/data/0d9f852f8/bb8be17316ea45068200f40a95d2ab30 [2021-11-23 00:42:50,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:42:50,696 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:42:50,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:42:50,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:42:50,700 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:42:50,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:42:50" (1/1) ... [2021-11-23 00:42:50,703 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9f78f83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:50, skipping insertion in model container [2021-11-23 00:42:50,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:42:50" (1/1) ... [2021-11-23 00:42:50,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:42:50,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:42:50,958 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_a3eddbc6-5da7-4d1f-ba67-5e9352f7ef57/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_unwindbound2.c[535,548] [2021-11-23 00:42:50,986 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:42:50,994 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:42:51,007 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_a3eddbc6-5da7-4d1f-ba67-5e9352f7ef57/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_unwindbound2.c[535,548] [2021-11-23 00:42:51,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:42:51,037 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:42:51,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:51 WrapperNode [2021-11-23 00:42:51,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:42:51,039 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:42:51,039 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:42:51,040 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:42:51,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:51" (1/1) ... [2021-11-23 00:42:51,059 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:51" (1/1) ... [2021-11-23 00:42:51,083 INFO L137 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2021-11-23 00:42:51,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:42:51,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:42:51,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:42:51,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:42:51,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:51" (1/1) ... [2021-11-23 00:42:51,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:51" (1/1) ... [2021-11-23 00:42:51,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:51" (1/1) ... [2021-11-23 00:42:51,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:51" (1/1) ... [2021-11-23 00:42:51,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:51" (1/1) ... [2021-11-23 00:42:51,108 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:51" (1/1) ... [2021-11-23 00:42:51,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:51" (1/1) ... [2021-11-23 00:42:51,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:42:51,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:42:51,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:42:51,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:42:51,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:51" (1/1) ... [2021-11-23 00:42:51,121 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:42:51,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3eddbc6-5da7-4d1f-ba67-5e9352f7ef57/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:42:51,146 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3eddbc6-5da7-4d1f-ba67-5e9352f7ef57/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:42:51,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3eddbc6-5da7-4d1f-ba67-5e9352f7ef57/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:42:51,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:42:51,195 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 00:42:51,195 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 00:42:51,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:42:51,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:42:51,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:42:51,196 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 00:42:51,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 00:42:51,259 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:42:51,261 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:42:51,480 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:42:51,515 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:42:51,515 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-23 00:42:51,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:42:51 BoogieIcfgContainer [2021-11-23 00:42:51,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:42:51,535 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:42:51,535 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:42:51,545 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:42:51,545 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:42:51" (1/1) ... [2021-11-23 00:42:51,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:42:51,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:51,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 40 transitions. [2021-11-23 00:42:51,638 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 40 transitions. [2021-11-23 00:42:51,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 00:42:51,643 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:51,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:51,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:51,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 00:42:51,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:51,845 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 00:42:51,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:51,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 27 states and 37 transitions. [2021-11-23 00:42:51,882 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2021-11-23 00:42:51,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 00:42:51,884 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:51,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:51,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:51,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 00:42:51,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:52,021 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 00:42:52,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:52,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 29 states and 41 transitions. [2021-11-23 00:42:52,100 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 41 transitions. [2021-11-23 00:42:52,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 00:42:52,102 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:52,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:52,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:52,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 00:42:52,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:52,410 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 00:42:54,529 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 00:42:54,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:54,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 34 states and 54 transitions. [2021-11-23 00:42:54,602 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 54 transitions. [2021-11-23 00:42:54,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 00:42:54,604 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:54,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:54,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:54,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 00:42:54,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:55,600 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 00:42:56,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 00:42:57,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:57,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 38 states and 63 transitions. [2021-11-23 00:42:57,160 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 63 transitions. [2021-11-23 00:42:57,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 00:42:57,161 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:57,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:57,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:57,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:42:57,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:57,350 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 00:42:57,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:57,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 41 states and 66 transitions. [2021-11-23 00:42:57,483 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 66 transitions. [2021-11-23 00:42:57,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 00:42:57,485 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:57,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:57,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:57,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 00:42:57,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:57,688 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 00:43:09,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:43:09,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 49 states and 85 transitions. [2021-11-23 00:43:09,202 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 85 transitions. [2021-11-23 00:43:09,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 00:43:09,204 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:43:09,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:43:09,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:43:09,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:43:09,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:43:09,396 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 00:43:16,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:43:16,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 63 states and 116 transitions. [2021-11-23 00:43:16,715 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 116 transitions. [2021-11-23 00:43:16,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 00:43:16,717 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:43:16,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:43:16,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:43:16,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:43:16,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:43:16,811 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 00:43:22,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:43:22,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 65 states and 118 transitions. [2021-11-23 00:43:22,850 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 118 transitions. [2021-11-23 00:43:22,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 00:43:22,852 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:43:22,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:43:22,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:43:22,899 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 00:43:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:43:22,937 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 9 iterations. [2021-11-23 00:43:22,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:43:22 ImpRootNode [2021-11-23 00:43:22,972 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 00:43:22,972 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 00:43:22,972 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 00:43:22,973 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 00:43:22,973 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:42:51" (3/4) ... [2021-11-23 00:43:22,975 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 00:43:23,046 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3eddbc6-5da7-4d1f-ba67-5e9352f7ef57/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 00:43:23,046 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 00:43:23,048 INFO L158 Benchmark]: Toolchain (without parser) took 32350.92ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 60.8MB in the beginning and 83.7MB in the end (delta: -22.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:43:23,048 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 94.4MB. Free memory is still 49.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:43:23,049 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.00ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 60.6MB in the beginning and 91.7MB in the end (delta: -31.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 00:43:23,050 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.05ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 90.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:43:23,051 INFO L158 Benchmark]: Boogie Preprocessor took 25.20ms. Allocated memory is still 117.4MB. Free memory was 90.2MB in the beginning and 89.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:43:23,052 INFO L158 Benchmark]: RCFGBuilder took 422.27ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 78.0MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 00:43:23,053 INFO L158 Benchmark]: CodeCheck took 31437.15ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 86.8MB in the end (delta: -8.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:43:23,054 INFO L158 Benchmark]: Witness Printer took 74.15ms. Allocated memory is still 117.4MB. Free memory was 86.8MB in the beginning and 83.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:43:23,058 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 31.3s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 570 SdHoareTripleChecker+Valid, 19.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 183 mSDsluCounter, 440 SdHoareTripleChecker+Invalid, 19.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 152 mSDsCounter, 321 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 964 IncrementalHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 321 mSolverCounterUnsat, 310 mSDtfsCounter, 964 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1560 GetRequests, 1408 SyntacticMatches, 42 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4332 ImplicationChecksByTransitivity, 25.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 199 NumberOfCodeBlocks, 199 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 531 SizeOfPredicates, 12 NumberOfNonLiveVariables, 642 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 38/41 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 14]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int counter = 0; [L21] int A, R; [L22] long long u, v, r; [L23] A = __VERIFIER_nondet_int() [L24] R = __VERIFIER_nondet_int() [L25] CALL assume_abort_if_not((((long long) R - 1) * ((long long) R - 1)) < A) VAL [\old(cond)=1, counter=0] [L9] COND FALSE !(!cond) [L25] RET assume_abort_if_not((((long long) R - 1) * ((long long) R - 1)) < A) VAL [A=3, counter=0, R=0] [L27] CALL assume_abort_if_not(A % 2 == 1) VAL [\old(cond)=1, counter=0] [L9] COND FALSE !(!cond) [L27] RET assume_abort_if_not(A % 2 == 1) VAL [A=3, counter=0, R=0] [L29] u = ((long long) 2 * R) + 1 [L30] v = 1 [L31] r = ((long long) R * R) - A VAL [A=3, counter=0, R=0, r=-3, u=1, v=1] [L34] EXPR counter++ VAL [A=3, counter=1, counter++=0, r=-3, R=0, u=1, v=1] [L34] COND TRUE counter++<2 [L35] CALL __VERIFIER_assert(4*(A+r) == u*u - v*v - 2*u + 2*v) VAL [\old(cond)=1, counter=1] [L12] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L35] RET __VERIFIER_assert(4*(A+r) == u*u - v*v - 2*u + 2*v) VAL [A=3, counter=1, R=0, r=-3, u=1, v=1] [L36] COND FALSE !(!(r != 0)) VAL [A=3, counter=1, R=0, r=-3, u=1, v=1] [L39] EXPR counter++ VAL [A=3, counter=2, counter++=1, r=-3, R=0, u=1, v=1] [L39] COND TRUE counter++<2 [L40] CALL __VERIFIER_assert(4*(A+r) == u*u - v*v - 2*u + 2*v) VAL [\old(cond)=1, counter=2] [L12] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L40] RET __VERIFIER_assert(4*(A+r) == u*u - v*v - 2*u + 2*v) VAL [A=3, counter=2, r=-3, R=0, u=1, v=1] [L41] COND TRUE !(r > 0) VAL [A=3, counter=2, R=0, r=-3, u=1, v=1] [L47] EXPR counter++ VAL [A=3, counter=3, counter++=2, r=-3, R=0, u=1, v=1] [L47] COND FALSE !(counter++<2) [L34] EXPR counter++ VAL [A=3, counter=4, counter++=3, r=-3, R=0, u=1, v=1] [L34] COND FALSE !(counter++<2) [L56] CALL __VERIFIER_assert(((long long) 4*A) == u*u - v*v - 2*u + 2*v) VAL [\old(cond)=0, counter=4] [L12] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=4] [L14] reach_error() VAL [\old(cond)=0, cond=0, counter=4] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 94.4MB. Free memory is still 49.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.00ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 60.6MB in the beginning and 91.7MB in the end (delta: -31.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.05ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 90.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.20ms. Allocated memory is still 117.4MB. Free memory was 90.2MB in the beginning and 89.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 422.27ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 78.0MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 31437.15ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 86.8MB in the end (delta: -8.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 74.15ms. Allocated memory is still 117.4MB. Free memory was 86.8MB in the beginning and 83.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 00:43:23,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3eddbc6-5da7-4d1f-ba67-5e9352f7ef57/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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