./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de2810b2-1618-42a0-9c04-41ebec8891fe/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de2810b2-1618-42a0-9c04-41ebec8891fe/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de2810b2-1618-42a0-9c04-41ebec8891fe/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de2810b2-1618-42a0-9c04-41ebec8891fe/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de2810b2-1618-42a0-9c04-41ebec8891fe/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de2810b2-1618-42a0-9c04-41ebec8891fe/bin/ukojak-92XMlrwhuB --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 b63b7ff6572e9a0a2b1c55134bda19bbc388077099b845df6f31e10a08695ebb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 16:46:45,424 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:46:45,427 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:46:45,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:46:45,483 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:46:45,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:46:45,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:46:45,496 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:46:45,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:46:45,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:46:45,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:46:45,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:46:45,511 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:46:45,514 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:46:45,517 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:46:45,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:46:45,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:46:45,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:46:45,525 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:46:45,533 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:46:45,535 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:46:45,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:46:45,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:46:45,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:46:45,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:46:45,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:46:45,555 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:46:45,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:46:45,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:46:45,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:46:45,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:46:45,562 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:46:45,566 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:46:45,567 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:46:45,569 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:46:45,569 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:46:45,570 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:46:45,570 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:46:45,571 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:46:45,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:46:45,573 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:46:45,574 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de2810b2-1618-42a0-9c04-41ebec8891fe/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:46:45,618 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:46:45,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:46:45,620 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:46:45,620 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:46:45,621 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:46:45,621 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:46:45,621 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:46:45,622 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:46:45,622 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:46:45,622 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:46:45,623 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:46:45,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:46:45,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:46:45,624 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:46:45,624 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:46:45,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:46:45,625 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:46:45,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:46:45,625 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:46:45,626 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:46:45,626 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:46:45,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:46:45,626 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:46:45,627 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:46:45,627 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:46:45,627 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:46:45,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:46:45,628 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:46:45,628 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_de2810b2-1618-42a0-9c04-41ebec8891fe/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de2810b2-1618-42a0-9c04-41ebec8891fe/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b63b7ff6572e9a0a2b1c55134bda19bbc388077099b845df6f31e10a08695ebb [2022-10-17 16:46:45,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:46:45,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:46:45,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:46:45,939 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:46:45,941 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:46:45,943 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de2810b2-1618-42a0-9c04-41ebec8891fe/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound20.c [2022-10-17 16:46:46,013 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de2810b2-1618-42a0-9c04-41ebec8891fe/bin/ukojak-92XMlrwhuB/data/d54ef4fe1/5e2988bf19b1455ca71bf8d493de16fd/FLAG51b6ba345 [2022-10-17 16:46:46,457 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:46:46,458 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de2810b2-1618-42a0-9c04-41ebec8891fe/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound20.c [2022-10-17 16:46:46,465 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de2810b2-1618-42a0-9c04-41ebec8891fe/bin/ukojak-92XMlrwhuB/data/d54ef4fe1/5e2988bf19b1455ca71bf8d493de16fd/FLAG51b6ba345 [2022-10-17 16:46:46,842 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de2810b2-1618-42a0-9c04-41ebec8891fe/bin/ukojak-92XMlrwhuB/data/d54ef4fe1/5e2988bf19b1455ca71bf8d493de16fd [2022-10-17 16:46:46,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:46:46,845 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:46:46,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:46:46,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:46:46,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:46:46,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:46:46" (1/1) ... [2022-10-17 16:46:46,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26ab7dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:46, skipping insertion in model container [2022-10-17 16:46:46,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:46:46" (1/1) ... [2022-10-17 16:46:46,861 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:46:46,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:46:47,081 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_de2810b2-1618-42a0-9c04-41ebec8891fe/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound20.c[555,568] [2022-10-17 16:46:47,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:46:47,128 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:46:47,143 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_de2810b2-1618-42a0-9c04-41ebec8891fe/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound20.c[555,568] [2022-10-17 16:46:47,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:46:47,164 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:46:47,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:47 WrapperNode [2022-10-17 16:46:47,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:46:47,166 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:46:47,166 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:46:47,166 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:46:47,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:47" (1/1) ... [2022-10-17 16:46:47,182 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:47" (1/1) ... [2022-10-17 16:46:47,206 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2022-10-17 16:46:47,206 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:46:47,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:46:47,207 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:46:47,207 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:46:47,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:47" (1/1) ... [2022-10-17 16:46:47,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:47" (1/1) ... [2022-10-17 16:46:47,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:47" (1/1) ... [2022-10-17 16:46:47,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:47" (1/1) ... [2022-10-17 16:46:47,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:47" (1/1) ... [2022-10-17 16:46:47,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:47" (1/1) ... [2022-10-17 16:46:47,225 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:47" (1/1) ... [2022-10-17 16:46:47,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:47" (1/1) ... [2022-10-17 16:46:47,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:46:47,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:46:47,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:46:47,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:46:47,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:47" (1/1) ... [2022-10-17 16:46:47,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:46:47,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de2810b2-1618-42a0-9c04-41ebec8891fe/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:46:47,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de2810b2-1618-42a0-9c04-41ebec8891fe/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:46:47,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de2810b2-1618-42a0-9c04-41ebec8891fe/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:46:47,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:46:47,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:46:47,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:46:47,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:46:47,331 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 16:46:47,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 16:46:47,408 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:46:47,411 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:46:47,543 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:46:47,561 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:46:47,562 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 16:46:47,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:46:47 BoogieIcfgContainer [2022-10-17 16:46:47,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:46:47,565 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:46:47,565 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:46:47,576 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:46:47,576 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:46:47" (1/1) ... [2022-10-17 16:46:47,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:46:47,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:47,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2022-10-17 16:46:47,641 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2022-10-17 16:46:47,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:46:47,646 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:47,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:47,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:47,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjunts are in the unsatisfiable core [2022-10-17 16:46:47,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:46:47,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:46:47,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:47,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2022-10-17 16:46:47,838 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-10-17 16:46:47,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:46:47,839 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:47,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:47,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:47,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 16:46:47,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:46:48,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:46:48,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:48,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2022-10-17 16:46:48,233 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2022-10-17 16:46:48,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:46:48,234 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:48,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:48,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:48,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:48,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 16:46:48,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:46:48,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:46:48,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:48,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2022-10-17 16:46:48,774 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2022-10-17 16:46:48,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 16:46:48,776 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:48,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:48,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:46:48,848 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:46:48,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:46:48,891 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2022-10-17 16:46:48,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:46:48 ImpRootNode [2022-10-17 16:46:48,945 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:46:48,947 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:46:48,947 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:46:48,948 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:46:48,949 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:46:47" (3/4) ... [2022-10-17 16:46:48,951 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 16:46:49,022 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de2810b2-1618-42a0-9c04-41ebec8891fe/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:46:49,022 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:46:49,023 INFO L158 Benchmark]: Toolchain (without parser) took 2177.76ms. Allocated memory was 98.6MB in the beginning and 125.8MB in the end (delta: 27.3MB). Free memory was 61.4MB in the beginning and 75.9MB in the end (delta: -14.5MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2022-10-17 16:46:49,024 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 98.6MB. Free memory is still 78.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:46:49,025 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.01ms. Allocated memory is still 98.6MB. Free memory was 61.2MB in the beginning and 72.6MB in the end (delta: -11.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-10-17 16:46:49,026 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.36ms. Allocated memory is still 98.6MB. Free memory was 72.6MB in the beginning and 70.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:46:49,027 INFO L158 Benchmark]: Boogie Preprocessor took 21.39ms. Allocated memory is still 98.6MB. Free memory was 70.9MB in the beginning and 69.8MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:46:49,028 INFO L158 Benchmark]: RCFGBuilder took 335.33ms. Allocated memory is still 98.6MB. Free memory was 69.8MB in the beginning and 60.0MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:46:49,029 INFO L158 Benchmark]: CodeCheck took 1380.33ms. Allocated memory was 98.6MB in the beginning and 125.8MB in the end (delta: 27.3MB). Free memory was 59.7MB in the beginning and 78.0MB in the end (delta: -18.4MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2022-10-17 16:46:49,030 INFO L158 Benchmark]: Witness Printer took 75.29ms. Allocated memory is still 125.8MB. Free memory was 78.0MB in the beginning and 75.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:46:49,034 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: 1.3s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 68 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 56 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 168 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 51 SizeOfPredicates, 1 NumberOfNonLiveVariables, 141 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L22] int counter = 0; [L24] unsigned int z, k; [L25] long long x, y, c; [L26] z = __VERIFIER_nondet_uint() [L27] k = __VERIFIER_nondet_uint() [L29] x = 1 [L30] y = z [L31] c = 1 VAL [c=1, counter=0, x=1, y=0, z=4294967296] [L33] EXPR counter++ VAL [c=1, counter=1, counter++=0, x=1, y=0, z=4294967296] [L33] COND TRUE counter++<20 [L34] CALL __VERIFIER_assert(x*z - x - y + 1 == 0) VAL [\old(cond)=1, counter=1] [L16] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L34] RET __VERIFIER_assert(x*z - x - y + 1 == 0) VAL [c=1, counter=1, x=1, y=0, z=4294967296] [L36] COND TRUE !(c < k) VAL [c=1, counter=1, k=-4294967295, x=1, y=0, z=4294967296] [L45] x = x * (z - 1) VAL [c=1, counter=1, k=-4294967295, x=4294967295, y=0, z=4294967296] [L47] CALL __VERIFIER_assert(1 + x - y == 0) VAL [\old(cond)=0, counter=1] [L16] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=1] [L18] reach_error() VAL [\old(cond)=0, cond=0, counter=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 98.6MB. Free memory is still 78.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 318.01ms. Allocated memory is still 98.6MB. Free memory was 61.2MB in the beginning and 72.6MB in the end (delta: -11.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.36ms. Allocated memory is still 98.6MB. Free memory was 72.6MB in the beginning and 70.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.39ms. Allocated memory is still 98.6MB. Free memory was 70.9MB in the beginning and 69.8MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 335.33ms. Allocated memory is still 98.6MB. Free memory was 69.8MB in the beginning and 60.0MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1380.33ms. Allocated memory was 98.6MB in the beginning and 125.8MB in the end (delta: 27.3MB). Free memory was 59.7MB in the beginning and 78.0MB in the end (delta: -18.4MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * Witness Printer took 75.29ms. Allocated memory is still 125.8MB. Free memory was 78.0MB in the beginning and 75.9MB 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! [2022-10-17 16:46:49,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de2810b2-1618-42a0-9c04-41ebec8891fe/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with 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