./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound1.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_4211b778-d145-4c51-9093-852fc9904da6/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211b778-d145-4c51-9093-852fc9904da6/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_4211b778-d145-4c51-9093-852fc9904da6/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211b778-d145-4c51-9093-852fc9904da6/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211b778-d145-4c51-9093-852fc9904da6/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_4211b778-d145-4c51-9093-852fc9904da6/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 7e9492584c051c945baa3a1de8b03a2c00614fb076a66c88b26b81461b005eeb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:44:47,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:44:47,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:44:47,083 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:44:47,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:44:47,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:44:47,087 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:44:47,089 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:44:47,091 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:44:47,093 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:44:47,094 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:44:47,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:44:47,096 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:44:47,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:44:47,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:44:47,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:44:47,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:44:47,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:44:47,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:44:47,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:44:47,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:44:47,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:44:47,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:44:47,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:44:47,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:44:47,125 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:44:47,125 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:44:47,127 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:44:47,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:44:47,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:44:47,131 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:44:47,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:44:47,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:44:47,135 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:44:47,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:44:47,138 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:44:47,138 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:44:47,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:44:47,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:44:47,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:44:47,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:44:47,145 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211b778-d145-4c51-9093-852fc9904da6/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:44:47,194 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:44:47,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:44:47,196 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:44:47,196 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:44:47,197 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:44:47,197 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:44:47,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:44:47,198 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:44:47,198 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:44:47,198 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:44:47,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:44:47,200 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:44:47,200 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:44:47,200 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:44:47,200 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:44:47,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:44:47,201 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:44:47,201 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:44:47,201 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:44:47,201 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:44:47,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:44:47,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:44:47,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:44:47,202 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:44:47,202 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:44:47,203 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:44:47,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:44:47,203 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:44:47,203 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_4211b778-d145-4c51-9093-852fc9904da6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211b778-d145-4c51-9093-852fc9904da6/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e9492584c051c945baa3a1de8b03a2c00614fb076a66c88b26b81461b005eeb [2021-11-23 01:44:47,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:44:47,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:44:47,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:44:47,579 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:44:47,580 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:44:47,582 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211b778-d145-4c51-9093-852fc9904da6/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound1.c [2021-11-23 01:44:47,658 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211b778-d145-4c51-9093-852fc9904da6/bin/ukojak-LBtLqBUTdQ/data/229b37d7b/e538382c512d4e64b2f5d110651e8b2c/FLAGa844430c6 [2021-11-23 01:44:48,089 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:44:48,090 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211b778-d145-4c51-9093-852fc9904da6/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound1.c [2021-11-23 01:44:48,096 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211b778-d145-4c51-9093-852fc9904da6/bin/ukojak-LBtLqBUTdQ/data/229b37d7b/e538382c512d4e64b2f5d110651e8b2c/FLAGa844430c6 [2021-11-23 01:44:48,472 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211b778-d145-4c51-9093-852fc9904da6/bin/ukojak-LBtLqBUTdQ/data/229b37d7b/e538382c512d4e64b2f5d110651e8b2c [2021-11-23 01:44:48,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:44:48,475 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:44:48,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:44:48,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:44:48,481 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:44:48,482 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:44:48" (1/1) ... [2021-11-23 01:44:48,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a3e143b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:48, skipping insertion in model container [2021-11-23 01:44:48,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:44:48" (1/1) ... [2021-11-23 01:44:48,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:44:48,505 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:44:48,694 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_4211b778-d145-4c51-9093-852fc9904da6/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound1.c[524,537] [2021-11-23 01:44:48,711 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:44:48,718 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:44:48,729 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_4211b778-d145-4c51-9093-852fc9904da6/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound1.c[524,537] [2021-11-23 01:44:48,738 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:44:48,750 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:44:48,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:48 WrapperNode [2021-11-23 01:44:48,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:44:48,752 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:44:48,752 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:44:48,752 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:44:48,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:48" (1/1) ... [2021-11-23 01:44:48,765 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:48" (1/1) ... [2021-11-23 01:44:48,785 INFO L137 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2021-11-23 01:44:48,786 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:44:48,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:44:48,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:44:48,787 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:44:48,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:48" (1/1) ... [2021-11-23 01:44:48,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:48" (1/1) ... [2021-11-23 01:44:48,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:48" (1/1) ... [2021-11-23 01:44:48,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:48" (1/1) ... [2021-11-23 01:44:48,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:48" (1/1) ... [2021-11-23 01:44:48,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:48" (1/1) ... [2021-11-23 01:44:48,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:48" (1/1) ... [2021-11-23 01:44:48,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:44:48,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:44:48,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:44:48,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:44:48,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:48" (1/1) ... [2021-11-23 01:44:48,818 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:44:48,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211b778-d145-4c51-9093-852fc9904da6/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:44:48,843 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211b778-d145-4c51-9093-852fc9904da6/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:44:48,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211b778-d145-4c51-9093-852fc9904da6/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:44:48,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:44:48,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:44:48,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:44:48,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:44:48,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 01:44:48,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 01:44:48,960 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:44:48,964 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:44:49,196 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:44:49,264 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:44:49,265 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:44:49,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:44:49 BoogieIcfgContainer [2021-11-23 01:44:49,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:44:49,268 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:44:49,269 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:44:49,279 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:44:49,279 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:44:49" (1/1) ... [2021-11-23 01:44:49,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:44:49,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:44:49,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2021-11-23 01:44:49,388 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2021-11-23 01:44:49,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 01:44:49,390 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:44:49,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:44:49,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:44:49,520 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 01:44:49,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:44:49,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2021-11-23 01:44:49,544 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2021-11-23 01:44:49,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:44:49,545 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:44:49,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:44:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:44:49,609 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 01:44:49,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:44:49,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2021-11-23 01:44:49,669 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2021-11-23 01:44:49,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:44:49,670 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:44:49,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:44:49,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:44:49,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:44:49,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:44:49,954 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 01:44:50,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:44:50,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2021-11-23 01:44:50,255 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2021-11-23 01:44:50,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 01:44:50,260 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:44:50,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:44:50,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:44:50,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 01:44:50,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:44:50,615 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 01:44:56,565 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.16s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 01:44:56,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:44:56,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 29 states and 49 transitions. [2021-11-23 01:44:56,945 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 49 transitions. [2021-11-23 01:44:56,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 01:44:56,947 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:44:56,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:44:56,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:44:56,977 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:44:57,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:44:57,168 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2021-11-23 01:44:57,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:44:57 ImpRootNode [2021-11-23 01:44:57,199 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:44:57,201 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:44:57,202 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:44:57,202 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:44:57,202 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:44:49" (3/4) ... [2021-11-23 01:44:57,204 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 01:44:57,264 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211b778-d145-4c51-9093-852fc9904da6/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:44:57,264 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:44:57,265 INFO L158 Benchmark]: Toolchain (without parser) took 8789.29ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 66.5MB in the beginning and 72.0MB in the end (delta: -5.6MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2021-11-23 01:44:57,266 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 107.0MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:44:57,267 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.29ms. Allocated memory is still 107.0MB. Free memory was 66.3MB in the beginning and 82.3MB in the end (delta: -16.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 01:44:57,268 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.98ms. Allocated memory is still 107.0MB. Free memory was 82.3MB in the beginning and 80.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:44:57,269 INFO L158 Benchmark]: Boogie Preprocessor took 22.67ms. Allocated memory is still 107.0MB. Free memory was 80.7MB in the beginning and 79.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:44:57,270 INFO L158 Benchmark]: RCFGBuilder took 457.75ms. Allocated memory is still 107.0MB. Free memory was 79.6MB in the beginning and 65.8MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 01:44:57,271 INFO L158 Benchmark]: CodeCheck took 7931.29ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 65.6MB in the beginning and 74.1MB in the end (delta: -8.6MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2021-11-23 01:44:57,272 INFO L158 Benchmark]: Witness Printer took 62.64ms. Allocated memory is still 130.0MB. Free memory was 74.1MB in the beginning and 72.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:44:57,277 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: 7.9s, OverallIterations: 5, 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, 79 SdHoareTripleChecker+Valid, 5.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 5.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 139 IncrementalHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 56 mSDtfsCounter, 139 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 294 GetRequests, 248 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 141 SizeOfPredicates, 8 NumberOfNonLiveVariables, 126 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 1/2 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=-1, b=2, counter=0, p=1, q=0, x=-1, y=2] [L33] EXPR counter++ VAL [a=-1, b=2, counter=1, counter++=0, p=1, q=0, x=-1, y=2] [L33] COND TRUE counter++<1 [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=-1, b=2, counter=1, p=1, q=0, x=-1, y=2] [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=-2, b=1, counter=1, p=1, q=0, x=-1, y=2] [L33] EXPR counter++ VAL [a=-2, b=1, counter=2, counter++=1, p=1, q=0, x=-1, y=2] [L33] COND FALSE !(counter++<1) [L56] CALL __VERIFIER_assert(q == (long long) x * y) VAL [\old(cond)=0, counter=2] [L12] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=2] [L14] reach_error() VAL [\old(cond)=0, cond=0, counter=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 107.0MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.29ms. Allocated memory is still 107.0MB. Free memory was 66.3MB in the beginning and 82.3MB in the end (delta: -16.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.98ms. Allocated memory is still 107.0MB. Free memory was 82.3MB in the beginning and 80.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.67ms. Allocated memory is still 107.0MB. Free memory was 80.7MB in the beginning and 79.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 457.75ms. Allocated memory is still 107.0MB. Free memory was 79.6MB in the beginning and 65.8MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 7931.29ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 65.6MB in the beginning and 74.1MB in the end (delta: -8.6MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. * Witness Printer took 62.64ms. Allocated memory is still 130.0MB. Free memory was 74.1MB in the beginning and 72.0MB 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 01:44:57,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211b778-d145-4c51-9093-852fc9904da6/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