./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-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_92760f7c-1811-4ead-bef1-551808063b5e/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92760f7c-1811-4ead-bef1-551808063b5e/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_92760f7c-1811-4ead-bef1-551808063b5e/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92760f7c-1811-4ead-bef1-551808063b5e/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92760f7c-1811-4ead-bef1-551808063b5e/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_92760f7c-1811-4ead-bef1-551808063b5e/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 2e2cde485588a76ffd9007a3156c09bf9b7ea2f13bf08ca050cf52c24b8b1e9f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 23:23:37,536 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:23:37,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:23:37,609 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:23:37,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:23:37,615 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:23:37,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:23:37,623 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:23:37,626 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:23:37,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:23:37,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:23:37,637 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:23:37,638 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:23:37,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:23:37,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:23:37,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:23:37,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:23:37,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:23:37,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:23:37,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:23:37,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:23:37,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:23:37,671 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:23:37,672 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:23:37,679 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:23:37,680 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:23:37,680 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:23:37,683 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:23:37,683 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:23:37,685 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:23:37,686 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:23:37,687 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:23:37,689 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:23:37,690 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:23:37,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:23:37,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:23:37,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:23:37,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:23:37,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:23:37,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:23:37,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:23:37,697 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92760f7c-1811-4ead-bef1-551808063b5e/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-22 23:23:37,748 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:23:37,748 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:23:37,750 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-22 23:23:37,750 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-22 23:23:37,751 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:23:37,751 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:23:37,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:23:37,752 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 23:23:37,752 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 23:23:37,753 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 23:23:37,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:23:37,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:23:37,754 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:23:37,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:23:37,755 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 23:23:37,755 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:23:37,755 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:23:37,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:23:37,756 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-22 23:23:37,756 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-22 23:23:37,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:23:37,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:23:37,757 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:23:37,757 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:23:37,757 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:23:37,758 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-22 23:23:37,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 23:23:37,758 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:23:37,758 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_92760f7c-1811-4ead-bef1-551808063b5e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92760f7c-1811-4ead-bef1-551808063b5e/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e2cde485588a76ffd9007a3156c09bf9b7ea2f13bf08ca050cf52c24b8b1e9f [2021-11-22 23:23:38,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:23:38,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:23:38,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:23:38,143 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:23:38,144 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:23:38,146 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92760f7c-1811-4ead-bef1-551808063b5e/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound2.c [2021-11-22 23:23:38,225 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92760f7c-1811-4ead-bef1-551808063b5e/bin/ukojak-LBtLqBUTdQ/data/12fa7e4d4/3a981dc539534760aaed3dee2b3cff9b/FLAG97616105b [2021-11-22 23:23:38,721 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:23:38,722 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92760f7c-1811-4ead-bef1-551808063b5e/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound2.c [2021-11-22 23:23:38,729 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92760f7c-1811-4ead-bef1-551808063b5e/bin/ukojak-LBtLqBUTdQ/data/12fa7e4d4/3a981dc539534760aaed3dee2b3cff9b/FLAG97616105b [2021-11-22 23:23:39,084 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92760f7c-1811-4ead-bef1-551808063b5e/bin/ukojak-LBtLqBUTdQ/data/12fa7e4d4/3a981dc539534760aaed3dee2b3cff9b [2021-11-22 23:23:39,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:23:39,091 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:23:39,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:23:39,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:23:39,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:23:39,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:23:39" (1/1) ... [2021-11-22 23:23:39,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@360135b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:23:39, skipping insertion in model container [2021-11-22 23:23:39,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:23:39" (1/1) ... [2021-11-22 23:23:39,119 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:23:39,140 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:23:39,296 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_92760f7c-1811-4ead-bef1-551808063b5e/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound2.c[524,537] [2021-11-22 23:23:39,317 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:23:39,327 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:23:39,342 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_92760f7c-1811-4ead-bef1-551808063b5e/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound2.c[524,537] [2021-11-22 23:23:39,351 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:23:39,366 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:23:39,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:23:39 WrapperNode [2021-11-22 23:23:39,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:23:39,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:23:39,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:23:39,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:23:39,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:23:39" (1/1) ... [2021-11-22 23:23:39,392 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:23:39" (1/1) ... [2021-11-22 23:23:39,420 INFO L137 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 46 [2021-11-22 23:23:39,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:23:39,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:23:39,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:23:39,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:23:39,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:23:39" (1/1) ... [2021-11-22 23:23:39,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:23:39" (1/1) ... [2021-11-22 23:23:39,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:23:39" (1/1) ... [2021-11-22 23:23:39,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:23:39" (1/1) ... [2021-11-22 23:23:39,452 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:23:39" (1/1) ... [2021-11-22 23:23:39,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:23:39" (1/1) ... [2021-11-22 23:23:39,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:23:39" (1/1) ... [2021-11-22 23:23:39,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:23:39,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:23:39,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:23:39,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:23:39,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:23:39" (1/1) ... [2021-11-22 23:23:39,480 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:23:39,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92760f7c-1811-4ead-bef1-551808063b5e/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-22 23:23:39,510 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92760f7c-1811-4ead-bef1-551808063b5e/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-22 23:23:39,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92760f7c-1811-4ead-bef1-551808063b5e/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-22 23:23:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:23:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-22 23:23:39,566 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-22 23:23:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 23:23:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:23:39,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:23:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-22 23:23:39,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-22 23:23:39,657 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:23:39,660 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:23:39,829 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:23:39,857 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:23:39,857 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-22 23:23:39,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:23:39 BoogieIcfgContainer [2021-11-22 23:23:39,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 23:23:39,861 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-22 23:23:39,861 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-22 23:23:39,874 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-22 23:23:39,874 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:23:39" (1/1) ... [2021-11-22 23:23:39,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:23:39,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:39,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2021-11-22 23:23:39,952 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2021-11-22 23:23:39,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-22 23:23:39,958 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:39,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:40,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-22 23:23:40,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:40,152 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 23:23:40,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:40,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2021-11-22 23:23:40,183 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2021-11-22 23:23:40,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-22 23:23:40,185 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:40,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:40,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:40,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 23:23:40,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:40,352 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 23:23:40,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:40,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2021-11-22 23:23:40,441 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2021-11-22 23:23:40,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-22 23:23:40,442 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:40,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:40,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 23:23:40,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:40,854 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 23:23:41,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:41,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 26 states and 35 transitions. [2021-11-22 23:23:41,800 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2021-11-22 23:23:41,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-22 23:23:41,802 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:41,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:41,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:41,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-22 23:23:41,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:42,501 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 23:23:44,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:44,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2021-11-22 23:23:44,749 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2021-11-22 23:23:44,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-22 23:23:44,750 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:44,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:44,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:44,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 23:23:44,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:44,906 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 23:23:52,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:52,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 38 states and 58 transitions. [2021-11-22 23:23:52,146 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 58 transitions. [2021-11-22 23:23:52,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-22 23:23:52,148 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:52,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:52,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-22 23:23:52,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:01,283 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 23:24:27,096 WARN L227 SmtUtils]: Spent 20.58s on a formula simplification. DAG size of input: 36 DAG size of output: 32 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 23:24:39,098 WARN L227 SmtUtils]: Spent 10.07s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 23:25:13,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-22 23:25:17,275 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-22 23:26:02,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:26:02,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 45 states and 76 transitions. [2021-11-22 23:26:02,405 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 76 transitions. [2021-11-22 23:26:02,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-22 23:26:02,407 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:26:02,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:26:02,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:26:02,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-22 23:26:02,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:26:27,205 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 23:26:43,896 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.23s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-22 23:26:59,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:26:59,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 47 states and 81 transitions. [2021-11-22 23:26:59,329 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 81 transitions. [2021-11-22 23:26:59,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-22 23:26:59,331 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:26:59,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:26:59,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:26:59,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 23:26:59,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:26:59,657 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 23:27:24,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:27:24,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 56 states and 103 transitions. [2021-11-22 23:27:24,296 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 103 transitions. [2021-11-22 23:27:24,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-22 23:27:24,298 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:27:24,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:27:24,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:27:24,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 23:27:24,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:27:24,425 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 23:27:43,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:27:43,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 39 states and 51 transitions. [2021-11-22 23:27:43,005 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 51 transitions. [2021-11-22 23:27:43,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-22 23:27:43,006 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:27:43,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:27:43,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:27:43,048 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 23:27:43,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:27:43,086 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 10 iterations. [2021-11-22 23:27:43,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.11 11:27:43 ImpRootNode [2021-11-22 23:27:43,122 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-22 23:27:43,123 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 23:27:43,123 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 23:27:43,123 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 23:27:43,124 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:23:39" (3/4) ... [2021-11-22 23:27:43,125 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-22 23:27:43,212 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92760f7c-1811-4ead-bef1-551808063b5e/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-22 23:27:43,212 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 23:27:43,213 INFO L158 Benchmark]: Toolchain (without parser) took 244121.91ms. Allocated memory was 86.0MB in the beginning and 130.0MB in the end (delta: 44.0MB). Free memory was 43.4MB in the beginning and 65.6MB in the end (delta: -22.2MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2021-11-22 23:27:43,214 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 86.0MB. Free memory is still 59.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:27:43,214 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.90ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 43.2MB in the beginning and 79.0MB in the end (delta: -35.7MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2021-11-22 23:27:43,215 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.09ms. Allocated memory is still 107.0MB. Free memory was 79.0MB in the beginning and 77.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 23:27:43,216 INFO L158 Benchmark]: Boogie Preprocessor took 46.60ms. Allocated memory is still 107.0MB. Free memory was 76.9MB in the beginning and 76.2MB in the end (delta: 649.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:27:43,217 INFO L158 Benchmark]: RCFGBuilder took 390.61ms. Allocated memory is still 107.0MB. Free memory was 76.2MB in the beginning and 79.2MB in the end (delta: -3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 23:27:43,218 INFO L158 Benchmark]: CodeCheck took 243261.05ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 79.2MB in the beginning and 68.6MB in the end (delta: 10.5MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. [2021-11-22 23:27:43,218 INFO L158 Benchmark]: Witness Printer took 89.28ms. Allocated memory is still 130.0MB. Free memory was 68.6MB in the beginning and 65.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 23:27:43,224 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, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 243.2s, OverallIterations: 10, 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, 507 SdHoareTripleChecker+Valid, 46.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 164 mSDsluCounter, 353 SdHoareTripleChecker+Invalid, 45.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 114 mSDsCounter, 510 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1431 IncrementalHoareTripleChecker+Invalid, 1941 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 510 mSolverCounterUnsat, 271 mSDtfsCounter, 1431 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1783 GetRequests, 1566 SyntacticMatches, 59 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9934 ImplicationChecksByTransitivity, 213.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 35.5s InterpolantComputationTime, 217 NumberOfCodeBlocks, 217 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 178 ConstructedInterpolants, 0 QuantifiedInterpolants, 1910 SizeOfPredicates, 16 NumberOfNonLiveVariables, 722 ConjunctsInSsa, 72 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 55/70 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() [L26] CALL assume_abort_if_not(((long long) R - 1) * ((long long) R - 1) < A) VAL [\old(cond)=1, counter=0] [L9] COND FALSE !(!cond) [L26] RET assume_abort_if_not(((long long) R - 1) * ((long long) R - 1) < A) VAL [A=3, counter=0, R=0] [L28] CALL assume_abort_if_not(A % 2 == 1) VAL [\old(cond)=1, counter=0] [L9] COND FALSE !(!cond) [L28] RET assume_abort_if_not(A % 2 == 1) VAL [A=3, counter=0, R=0] [L30] u = ((long long) 2 * R) + 1 [L31] v = 1 [L32] r = ((long long) R * R) - A VAL [A=3, counter=0, r=-3, R=0, u=1, v=1] [L34] EXPR counter++ VAL [A=3, counter=1, counter++=0, R=0, r=-3, 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)) [L38] COND FALSE !(r > 0) [L42] r = r + u [L43] u = u + 2 VAL [A=3, counter=1, R=0, r=-2, u=3, v=1] [L34] EXPR counter++ VAL [A=3, counter=2, counter++=1, R=0, r=-2, u=3, 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=2] [L12] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L35] RET __VERIFIER_assert(4*(A+r) == u*u - v*v - 2*u + 2*v) VAL [A=3, counter=2, r=-2, R=0, u=3, v=1] [L36] COND FALSE !(!(r != 0)) [L38] COND FALSE !(r > 0) [L42] r = r + u [L43] u = u + 2 VAL [A=3, counter=2, R=0, r=1, u=5, v=1] [L34] EXPR counter++ VAL [A=3, counter=3, counter++=2, R=0, r=1, u=5, v=1] [L34] COND FALSE !(counter++<2) [L48] CALL __VERIFIER_assert(((long long) 4*A) == u*u - v*v - 2*u + 2*v) VAL [\old(cond)=0, counter=3] [L12] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=3] [L14] reach_error() VAL [\old(cond)=0, cond=0, counter=3] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 86.0MB. Free memory is still 59.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.90ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 43.2MB in the beginning and 79.0MB in the end (delta: -35.7MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.09ms. Allocated memory is still 107.0MB. Free memory was 79.0MB in the beginning and 77.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.60ms. Allocated memory is still 107.0MB. Free memory was 76.9MB in the beginning and 76.2MB in the end (delta: 649.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 390.61ms. Allocated memory is still 107.0MB. Free memory was 76.2MB in the beginning and 79.2MB in the end (delta: -3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 243261.05ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 79.2MB in the beginning and 68.6MB in the end (delta: 10.5MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. * Witness Printer took 89.28ms. Allocated memory is still 130.0MB. Free memory was 68.6MB in the beginning and 65.6MB 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! [2021-11-22 23:27:43,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92760f7c-1811-4ead-bef1-551808063b5e/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