./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 dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_318f0c07-f896-4b52-a8ef-226ca8ccc416/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_318f0c07-f896-4b52-a8ef-226ca8ccc416/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_318f0c07-f896-4b52-a8ef-226ca8ccc416/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_318f0c07-f896-4b52-a8ef-226ca8ccc416/bin/ukojak-92XMlrwhuB/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_318f0c07-f896-4b52-a8ef-226ca8ccc416/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_318f0c07-f896-4b52-a8ef-226ca8ccc416/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 7e9492584c051c945baa3a1de8b03a2c00614fb076a66c88b26b81461b005eeb --- 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 17:00:39,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:00:39,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:00:39,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:00:39,707 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:00:39,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:00:39,711 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:00:39,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:00:39,716 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:00:39,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:00:39,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:00:39,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:00:39,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:00:39,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:00:39,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:00:39,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:00:39,735 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:00:39,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:00:39,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:00:39,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:00:39,744 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:00:39,746 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:00:39,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:00:39,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:00:39,767 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:00:39,768 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:00:39,768 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:00:39,769 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:00:39,770 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:00:39,771 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:00:39,772 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:00:39,773 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:00:39,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:00:39,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:00:39,776 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:00:39,781 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:00:39,782 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:00:39,782 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:00:39,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:00:39,784 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:00:39,785 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:00:39,785 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_318f0c07-f896-4b52-a8ef-226ca8ccc416/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 17:00:39,837 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:00:39,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:00:39,839 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:00:39,839 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 17:00:39,840 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 17:00:39,840 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 17:00:39,840 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:00:39,841 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:00:39,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:00:39,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:00:39,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:00:39,842 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:00:39,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:00:39,843 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:00:39,843 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:00:39,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:00:39,843 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:00:39,843 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:00:39,844 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 17:00:39,844 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 17:00:39,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:00:39,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:00:39,845 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:00:39,845 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:00:39,845 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:00:39,845 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 17:00:39,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:00:39,845 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:00:39,846 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_318f0c07-f896-4b52-a8ef-226ca8ccc416/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_318f0c07-f896-4b52-a8ef-226ca8ccc416/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e9492584c051c945baa3a1de8b03a2c00614fb076a66c88b26b81461b005eeb [2022-10-17 17:00:40,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:00:40,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:00:40,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:00:40,140 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:00:40,141 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:00:40,142 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_318f0c07-f896-4b52-a8ef-226ca8ccc416/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound1.c [2022-10-17 17:00:40,206 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_318f0c07-f896-4b52-a8ef-226ca8ccc416/bin/ukojak-92XMlrwhuB/data/6c5337293/2061bad51bbe489f853156cbc86e19d1/FLAG1ae3441bd [2022-10-17 17:00:40,750 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:00:40,751 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_318f0c07-f896-4b52-a8ef-226ca8ccc416/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound1.c [2022-10-17 17:00:40,758 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_318f0c07-f896-4b52-a8ef-226ca8ccc416/bin/ukojak-92XMlrwhuB/data/6c5337293/2061bad51bbe489f853156cbc86e19d1/FLAG1ae3441bd [2022-10-17 17:00:41,124 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_318f0c07-f896-4b52-a8ef-226ca8ccc416/bin/ukojak-92XMlrwhuB/data/6c5337293/2061bad51bbe489f853156cbc86e19d1 [2022-10-17 17:00:41,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:00:41,128 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:00:41,130 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:00:41,130 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:00:41,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:00:41,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:00:41" (1/1) ... [2022-10-17 17:00:41,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@539d70dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:41, skipping insertion in model container [2022-10-17 17:00:41,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:00:41" (1/1) ... [2022-10-17 17:00:41,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:00:41,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:00:41,303 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_318f0c07-f896-4b52-a8ef-226ca8ccc416/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound1.c[524,537] [2022-10-17 17:00:41,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:00:41,334 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:00:41,347 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_318f0c07-f896-4b52-a8ef-226ca8ccc416/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound1.c[524,537] [2022-10-17 17:00:41,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:00:41,454 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:00:41,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:41 WrapperNode [2022-10-17 17:00:41,455 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:00:41,456 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:00:41,457 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:00:41,458 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:00:41,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:41" (1/1) ... [2022-10-17 17:00:41,492 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:41" (1/1) ... [2022-10-17 17:00:41,524 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-10-17 17:00:41,525 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:00:41,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:00:41,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:00:41,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:00:41,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:41" (1/1) ... [2022-10-17 17:00:41,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:41" (1/1) ... [2022-10-17 17:00:41,540 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:41" (1/1) ... [2022-10-17 17:00:41,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:41" (1/1) ... [2022-10-17 17:00:41,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:41" (1/1) ... [2022-10-17 17:00:41,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:41" (1/1) ... [2022-10-17 17:00:41,567 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:41" (1/1) ... [2022-10-17 17:00:41,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:41" (1/1) ... [2022-10-17 17:00:41,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:00:41,576 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:00:41,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:00:41,577 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:00:41,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:41" (1/1) ... [2022-10-17 17:00:41,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:00:41,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_318f0c07-f896-4b52-a8ef-226ca8ccc416/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 17:00:41,626 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_318f0c07-f896-4b52-a8ef-226ca8ccc416/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 17:00:41,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_318f0c07-f896-4b52-a8ef-226ca8ccc416/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 17:00:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:00:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:00:41,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:00:41,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:00:41,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 17:00:41,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 17:00:41,765 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:00:41,767 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:00:41,984 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:00:42,136 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:00:42,136 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 17:00:42,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:00:42 BoogieIcfgContainer [2022-10-17 17:00:42,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:00:42,141 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 17:00:42,141 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 17:00:42,152 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 17:00:42,152 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:00:42" (1/1) ... [2022-10-17 17:00:42,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:00:42,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:42,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2022-10-17 17:00:42,297 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2022-10-17 17:00:42,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 17:00:42,298 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:42,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:00:42,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:00:42,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 1 conjunts are in the unsatisfiable core [2022-10-17 17:00:42,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:00:42,471 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 17:00:42,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:42,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2022-10-17 17:00:42,505 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2022-10-17 17:00:42,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 17:00:42,506 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:42,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:42,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:00:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:00:42,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 17:00:42,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:00:42,611 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 17:00:42,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:42,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2022-10-17 17:00:42,653 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2022-10-17 17:00:42,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 17:00:42,653 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:42,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:42,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:00:42,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 17:00:42,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:00:42,842 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 17:00:43,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:43,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2022-10-17 17:00:43,247 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2022-10-17 17:00:43,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 17:00:43,255 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:43,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:43,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:00:43,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-17 17:00:43,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:00:43,748 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:00:45,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:45,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 29 states and 49 transitions. [2022-10-17 17:00:45,064 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 49 transitions. [2022-10-17 17:00:45,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 17:00:45,066 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:45,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:45,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:00:45,112 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 17:00:45,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:00:45,308 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2022-10-17 17:00:45,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 05:00:45 ImpRootNode [2022-10-17 17:00:45,376 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 17:00:45,377 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 17:00:45,377 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 17:00:45,378 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 17:00:45,378 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:00:42" (3/4) ... [2022-10-17 17:00:45,380 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 17:00:45,479 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_318f0c07-f896-4b52-a8ef-226ca8ccc416/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 17:00:45,480 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 17:00:45,481 INFO L158 Benchmark]: Toolchain (without parser) took 4352.21ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 56.3MB in the beginning and 47.3MB in the end (delta: 8.9MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. [2022-10-17 17:00:45,482 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 88.1MB. Free memory is still 56.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:00:45,483 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.65ms. Allocated memory is still 88.1MB. Free memory was 56.1MB in the beginning and 45.8MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 17:00:45,484 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.99ms. Allocated memory is still 88.1MB. Free memory was 45.8MB in the beginning and 44.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:00:45,485 INFO L158 Benchmark]: Boogie Preprocessor took 49.39ms. Allocated memory is still 88.1MB. Free memory was 44.1MB in the beginning and 43.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:00:45,486 INFO L158 Benchmark]: RCFGBuilder took 563.51ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 43.0MB in the beginning and 85.7MB in the end (delta: -42.7MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2022-10-17 17:00:45,488 INFO L158 Benchmark]: CodeCheck took 3236.02ms. Allocated memory is still 113.2MB. Free memory was 85.2MB in the beginning and 49.4MB in the end (delta: 35.7MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. [2022-10-17 17:00:45,489 INFO L158 Benchmark]: Witness Printer took 102.66ms. Allocated memory is still 113.2MB. Free memory was 49.4MB in the beginning and 47.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:00:45,494 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: 3.1s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 79 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.7s 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, 300 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 141 SizeOfPredicates, 8 NumberOfNonLiveVariables, 238 ConjunctsInSsa, 30 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=-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++<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=-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 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 0.32ms. Allocated memory is still 88.1MB. Free memory is still 56.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 325.65ms. Allocated memory is still 88.1MB. Free memory was 56.1MB in the beginning and 45.8MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.99ms. Allocated memory is still 88.1MB. Free memory was 45.8MB in the beginning and 44.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.39ms. Allocated memory is still 88.1MB. Free memory was 44.1MB in the beginning and 43.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 563.51ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 43.0MB in the beginning and 85.7MB in the end (delta: -42.7MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. * CodeCheck took 3236.02ms. Allocated memory is still 113.2MB. Free memory was 85.2MB in the beginning and 49.4MB in the end (delta: 35.7MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. * Witness Printer took 102.66ms. Allocated memory is still 113.2MB. Free memory was 49.4MB in the beginning and 47.3MB 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 17:00:45,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_318f0c07-f896-4b52-a8ef-226ca8ccc416/bin/ukojak-92XMlrwhuB/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