./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-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_c07e6dd5-5cd8-4bab-a681-5f919a96eaa4/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e6dd5-5cd8-4bab-a681-5f919a96eaa4/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_c07e6dd5-5cd8-4bab-a681-5f919a96eaa4/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e6dd5-5cd8-4bab-a681-5f919a96eaa4/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e6dd5-5cd8-4bab-a681-5f919a96eaa4/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_c07e6dd5-5cd8-4bab-a681-5f919a96eaa4/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 7f0424dbafec10d34a77570c428224cb0ba56b8b9f5906b463f2dcbc550354ee --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:44:38,554 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:44:38,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:44:38,600 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:44:38,601 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:44:38,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:44:38,604 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:44:38,612 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:44:38,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:44:38,621 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:44:38,622 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:44:38,624 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:44:38,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:44:38,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:44:38,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:44:38,637 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:44:38,639 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:44:38,640 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:44:38,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:44:38,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:44:38,648 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:44:38,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:44:38,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:44:38,661 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:44:38,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:44:38,668 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:44:38,669 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:44:38,670 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:44:38,670 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:44:38,671 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:44:38,672 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:44:38,673 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:44:38,673 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:44:38,674 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:44:38,675 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:44:38,676 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:44:38,676 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:44:38,676 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:44:38,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:44:38,678 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:44:38,678 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:44:38,679 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e6dd5-5cd8-4bab-a681-5f919a96eaa4/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:44:38,706 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:44:38,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:44:38,707 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:44:38,707 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:44:38,708 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:44:38,708 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:44:38,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:44:38,709 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:44:38,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:44:38,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:44:38,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:44:38,709 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:44:38,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:44:38,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:44:38,710 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:44:38,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:44:38,710 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:44:38,710 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:44:38,711 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:44:38,711 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:44:38,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:44:38,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:44:38,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:44:38,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:44:38,712 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:44:38,712 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:44:38,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:44:38,712 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:44:38,712 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_c07e6dd5-5cd8-4bab-a681-5f919a96eaa4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e6dd5-5cd8-4bab-a681-5f919a96eaa4/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f0424dbafec10d34a77570c428224cb0ba56b8b9f5906b463f2dcbc550354ee [2021-11-23 00:44:38,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:44:39,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:44:39,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:44:39,012 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:44:39,013 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:44:39,014 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e6dd5-5cd8-4bab-a681-5f919a96eaa4/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound2.c [2021-11-23 00:44:39,089 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e6dd5-5cd8-4bab-a681-5f919a96eaa4/bin/ukojak-LBtLqBUTdQ/data/36d305a18/38fbc67ba12b4a2ba00189c128d2bcdc/FLAG32f70b064 [2021-11-23 00:44:39,583 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:44:39,584 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e6dd5-5cd8-4bab-a681-5f919a96eaa4/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound2.c [2021-11-23 00:44:39,595 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e6dd5-5cd8-4bab-a681-5f919a96eaa4/bin/ukojak-LBtLqBUTdQ/data/36d305a18/38fbc67ba12b4a2ba00189c128d2bcdc/FLAG32f70b064 [2021-11-23 00:44:39,928 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e6dd5-5cd8-4bab-a681-5f919a96eaa4/bin/ukojak-LBtLqBUTdQ/data/36d305a18/38fbc67ba12b4a2ba00189c128d2bcdc [2021-11-23 00:44:39,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:44:39,932 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:44:39,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:44:39,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:44:39,937 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:44:39,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:44:39" (1/1) ... [2021-11-23 00:44:39,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@274d0cea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:44:39, skipping insertion in model container [2021-11-23 00:44:39,939 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:44:39" (1/1) ... [2021-11-23 00:44:39,947 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:44:39,962 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:44:40,148 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_c07e6dd5-5cd8-4bab-a681-5f919a96eaa4/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound2.c[524,537] [2021-11-23 00:44:40,200 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:44:40,209 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:44:40,223 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_c07e6dd5-5cd8-4bab-a681-5f919a96eaa4/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound2.c[524,537] [2021-11-23 00:44:40,232 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:44:40,245 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:44:40,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:44:40 WrapperNode [2021-11-23 00:44:40,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:44:40,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:44:40,248 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:44:40,248 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:44:40,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:44:40" (1/1) ... [2021-11-23 00:44:40,263 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:44:40" (1/1) ... [2021-11-23 00:44:40,284 INFO L137 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2021-11-23 00:44:40,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:44:40,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:44:40,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:44:40,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:44:40,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:44:40" (1/1) ... [2021-11-23 00:44:40,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:44:40" (1/1) ... [2021-11-23 00:44:40,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:44:40" (1/1) ... [2021-11-23 00:44:40,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:44:40" (1/1) ... [2021-11-23 00:44:40,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:44:40" (1/1) ... [2021-11-23 00:44:40,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:44:40" (1/1) ... [2021-11-23 00:44:40,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:44:40" (1/1) ... [2021-11-23 00:44:40,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:44:40,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:44:40,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:44:40,332 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:44:40,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:44:40" (1/1) ... [2021-11-23 00:44:40,340 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:44:40,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e6dd5-5cd8-4bab-a681-5f919a96eaa4/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:44:40,373 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e6dd5-5cd8-4bab-a681-5f919a96eaa4/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:44:40,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e6dd5-5cd8-4bab-a681-5f919a96eaa4/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:44:40,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:44:40,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:44:40,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:44:40,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:44:40,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 00:44:40,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 00:44:40,508 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:44:40,510 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:44:40,660 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:44:40,735 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:44:40,735 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 00:44:40,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:44:40 BoogieIcfgContainer [2021-11-23 00:44:40,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:44:40,739 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:44:40,740 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:44:40,751 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:44:40,751 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:44:40" (1/1) ... [2021-11-23 00:44:40,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:44:40,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:44:40,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2021-11-23 00:44:40,821 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2021-11-23 00:44:40,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 00:44:40,823 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:44:40,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:44:40,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:44:40,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:44:40,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:44:40,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2021-11-23 00:44:40,976 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2021-11-23 00:44:40,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:44:40,977 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:44:40,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:44:40,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:44:41,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:44:41,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:44:41,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2021-11-23 00:44:41,113 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2021-11-23 00:44:41,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:44:41,113 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:44:41,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:44:41,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:44:41,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:44:41,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:44:41,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:44:41,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:44:41,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2021-11-23 00:44:41,750 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2021-11-23 00:44:41,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 00:44:41,756 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:44:41,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:44:41,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:44:41,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 00:44:41,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:44:42,312 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:44:43,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:44:43,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 29 states and 52 transitions. [2021-11-23 00:44:43,618 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 52 transitions. [2021-11-23 00:44:43,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 00:44:43,619 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:44:43,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:44:43,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:44:43,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 00:44:43,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:44:43,772 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:44:50,971 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.40s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 00:44:55,078 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 00:44:56,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:44:56,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 37 states and 75 transitions. [2021-11-23 00:44:56,663 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 75 transitions. [2021-11-23 00:44:56,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 00:44:56,665 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:44:56,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:44:56,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:44:56,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 00:44:56,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:44:57,857 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:45:06,257 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.75s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 00:45:08,251 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 00:45:08,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:45:08,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 41 states and 89 transitions. [2021-11-23 00:45:08,374 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 89 transitions. [2021-11-23 00:45:08,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 00:45:08,376 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:45:08,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:45:08,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:45:08,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 00:45:08,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:45:09,211 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:45:10,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:45:10,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 43 states and 92 transitions. [2021-11-23 00:45:10,954 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 92 transitions. [2021-11-23 00:45:10,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 00:45:10,955 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:45:10,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:45:10,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:45:10,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 00:45:10,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:45:11,192 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 00:45:12,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:45:12,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 45 states and 105 transitions. [2021-11-23 00:45:12,080 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 105 transitions. [2021-11-23 00:45:12,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 00:45:12,082 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:45:12,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:45:12,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:45:12,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 00:45:12,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:45:13,518 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 00:45:22,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:45:22,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 46 states and 113 transitions. [2021-11-23 00:45:22,095 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 113 transitions. [2021-11-23 00:45:22,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 00:45:22,097 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:45:22,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:45:22,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:45:22,353 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 00:45:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:45:22,394 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 10 iterations. [2021-11-23 00:45:22,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:45:22 ImpRootNode [2021-11-23 00:45:22,429 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 00:45:22,430 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 00:45:22,430 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 00:45:22,430 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 00:45:22,431 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:44:40" (3/4) ... [2021-11-23 00:45:22,433 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 00:45:22,503 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e6dd5-5cd8-4bab-a681-5f919a96eaa4/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 00:45:22,503 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 00:45:22,504 INFO L158 Benchmark]: Toolchain (without parser) took 42572.19ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 59.8MB in the beginning and 51.9MB in the end (delta: 8.0MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2021-11-23 00:45:22,505 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 100.7MB. Free memory is still 76.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:45:22,506 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.16ms. Allocated memory is still 100.7MB. Free memory was 59.7MB in the beginning and 75.7MB in the end (delta: -16.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 00:45:22,507 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.09ms. Allocated memory is still 100.7MB. Free memory was 75.7MB in the beginning and 74.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:45:22,508 INFO L158 Benchmark]: Boogie Preprocessor took 44.65ms. Allocated memory is still 100.7MB. Free memory was 74.0MB in the beginning and 73.2MB in the end (delta: 780.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:45:22,509 INFO L158 Benchmark]: RCFGBuilder took 408.03ms. Allocated memory is still 100.7MB. Free memory was 73.2MB in the beginning and 60.2MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 00:45:22,510 INFO L158 Benchmark]: CodeCheck took 41689.96ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 60.2MB in the beginning and 54.0MB in the end (delta: 6.2MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. [2021-11-23 00:45:22,510 INFO L158 Benchmark]: Witness Printer took 73.49ms. Allocated memory is still 121.6MB. Free memory was 54.0MB in the beginning and 51.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:45:22,515 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 2 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 41.6s, 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, 283 SdHoareTripleChecker+Valid, 88.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 50 mSDsluCounter, 183 SdHoareTripleChecker+Invalid, 87.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 48 mSDsCounter, 400 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1298 IncrementalHoareTripleChecker+Invalid, 1698 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 400 mSolverCounterUnsat, 151 mSDtfsCounter, 1298 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1326 GetRequests, 1180 SyntacticMatches, 32 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5009 ImplicationChecksByTransitivity, 17.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 1703 SizeOfPredicates, 25 NumberOfNonLiveVariables, 513 ConjunctsInSsa, 98 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 23/36 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 x, y; [L22] long long a, b, p, q; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L26] CALL assume_abort_if_not(y >= 1) [L9] COND FALSE !(!cond) [L26] RET assume_abort_if_not(y >= 1) [L28] a = x [L29] b = y [L30] p = 1 [L31] q = 0 VAL [a=-3, b=4, counter=0, p=1, q=0, x=-3, y=4] [L33] EXPR counter++ VAL [a=-3, b=4, counter=1, counter++=0, p=1, q=0, x=-3, y=4] [L33] COND TRUE counter++<2 [L34] CALL __VERIFIER_assert(q + a * b * p == (long long) x * y) VAL [\old(cond)=1, counter=1] [L12] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L34] RET __VERIFIER_assert(q + a * b * p == (long long) x * y) VAL [a=-3, b=4, counter=1, p=1, q=0, x=-3, y=4] [L36] COND FALSE !(!(a != 0 && b != 0)) [L39] COND FALSE !(a % 2 == 0 && b % 2 == 0) [L43] COND FALSE !(a % 2 == 1 && b % 2 == 0) [L46] COND FALSE !(a % 2 == 0 && b % 2 == 1) [L50] a = a - 1 [L51] b = b - 1 [L52] q = q + (a + b + 1) * p VAL [a=-4, b=3, counter=1, p=1, q=0, x=-3, y=4] [L33] EXPR counter++ VAL [a=-4, b=3, counter=2, counter++=1, p=1, q=0, x=-3, y=4] [L33] COND TRUE counter++<2 [L34] CALL __VERIFIER_assert(q + a * b * p == (long long) x * y) VAL [\old(cond)=1, counter=2] [L12] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L34] RET __VERIFIER_assert(q + a * b * p == (long long) x * y) VAL [a=-4, b=3, counter=2, p=1, q=0, x=-3, y=4] [L36] COND FALSE !(!(a != 0 && b != 0)) [L39] COND FALSE !(a % 2 == 0 && b % 2 == 0) [L43] COND FALSE !(a % 2 == 1 && b % 2 == 0) [L46] COND TRUE a % 2 == 0 && b % 2 == 1 [L47] b = b - 1 [L48] q = q + a * p VAL [a=-4, b=2, counter=2, p=1, q=-4, x=-3, y=4] [L33] EXPR counter++ VAL [a=-4, b=2, counter=3, counter++=2, p=1, q=-4, x=-3, y=4] [L33] COND FALSE !(counter++<2) [L56] CALL __VERIFIER_assert(q == (long long) x * y) 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 0.29ms. Allocated memory is still 100.7MB. Free memory is still 76.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 313.16ms. Allocated memory is still 100.7MB. Free memory was 59.7MB in the beginning and 75.7MB in the end (delta: -16.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.09ms. Allocated memory is still 100.7MB. Free memory was 75.7MB in the beginning and 74.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.65ms. Allocated memory is still 100.7MB. Free memory was 74.0MB in the beginning and 73.2MB in the end (delta: 780.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 408.03ms. Allocated memory is still 100.7MB. Free memory was 73.2MB in the beginning and 60.2MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 41689.96ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 60.2MB in the beginning and 54.0MB in the end (delta: 6.2MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. * Witness Printer took 73.49ms. Allocated memory is still 121.6MB. Free memory was 54.0MB in the beginning and 51.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 00:45:22,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e6dd5-5cd8-4bab-a681-5f919a96eaa4/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