./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e01f42-e300-4f3f-a74d-c5b5060d62f2/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e01f42-e300-4f3f-a74d-c5b5060d62f2/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e01f42-e300-4f3f-a74d-c5b5060d62f2/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e01f42-e300-4f3f-a74d-c5b5060d62f2/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e01f42-e300-4f3f-a74d-c5b5060d62f2/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e01f42-e300-4f3f-a74d-c5b5060d62f2/bin/ukojak-Rh5K9KB4LI --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 93288430628c47f5b29fea9bae87a960ba351b35fa235fa55fc142299145054c ............................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 02:56:52,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 02:56:52,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 02:56:52,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 02:56:52,168 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 02:56:52,173 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 02:56:52,175 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 02:56:52,179 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 02:56:52,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 02:56:52,187 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 02:56:52,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 02:56:52,190 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 02:56:52,191 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 02:56:52,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 02:56:52,196 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 02:56:52,200 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 02:56:52,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 02:56:52,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 02:56:52,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 02:56:52,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 02:56:52,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 02:56:52,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 02:56:52,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 02:56:52,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 02:56:52,229 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 02:56:52,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 02:56:52,230 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 02:56:52,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 02:56:52,233 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 02:56:52,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 02:56:52,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 02:56:52,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 02:56:52,238 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 02:56:52,239 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 02:56:52,240 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 02:56:52,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 02:56:52,241 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 02:56:52,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 02:56:52,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 02:56:52,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 02:56:52,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 02:56:52,245 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e01f42-e300-4f3f-a74d-c5b5060d62f2/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 02:56:52,287 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 02:56:52,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 02:56:52,289 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 02:56:52,289 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 02:56:52,290 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 02:56:52,290 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 02:56:52,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 02:56:52,297 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 02:56:52,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 02:56:52,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 02:56:52,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 02:56:52,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 02:56:52,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 02:56:52,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 02:56:52,299 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 02:56:52,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 02:56:52,300 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 02:56:52,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 02:56:52,300 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 02:56:52,300 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 02:56:52,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 02:56:52,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 02:56:52,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 02:56:52,301 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 02:56:52,301 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 02:56:52,302 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 02:56:52,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 02:56:52,302 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 02:56:52,302 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_a6e01f42-e300-4f3f-a74d-c5b5060d62f2/bin/ukojak-Rh5K9KB4LI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e01f42-e300-4f3f-a74d-c5b5060d62f2/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93288430628c47f5b29fea9bae87a960ba351b35fa235fa55fc142299145054c [2021-10-29 02:56:52,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 02:56:52,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 02:56:52,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 02:56:52,651 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 02:56:52,652 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 02:56:52,654 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e01f42-e300-4f3f-a74d-c5b5060d62f2/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound1.c [2021-10-29 02:56:52,727 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e01f42-e300-4f3f-a74d-c5b5060d62f2/bin/ukojak-Rh5K9KB4LI/data/d45091fb1/2b5556c1710842969761847b6e7ee74f/FLAG1afeeed69 [2021-10-29 02:56:53,287 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 02:56:53,289 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e01f42-e300-4f3f-a74d-c5b5060d62f2/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound1.c [2021-10-29 02:56:53,300 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e01f42-e300-4f3f-a74d-c5b5060d62f2/bin/ukojak-Rh5K9KB4LI/data/d45091fb1/2b5556c1710842969761847b6e7ee74f/FLAG1afeeed69 [2021-10-29 02:56:53,624 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e01f42-e300-4f3f-a74d-c5b5060d62f2/bin/ukojak-Rh5K9KB4LI/data/d45091fb1/2b5556c1710842969761847b6e7ee74f [2021-10-29 02:56:53,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 02:56:53,628 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 02:56:53,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 02:56:53,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 02:56:53,634 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 02:56:53,635 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 02:56:53" (1/1) ... [2021-10-29 02:56:53,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72322c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:56:53, skipping insertion in model container [2021-10-29 02:56:53,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 02:56:53" (1/1) ... [2021-10-29 02:56:53,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 02:56:53,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 02:56:53,891 WARN L228 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_a6e01f42-e300-4f3f-a74d-c5b5060d62f2/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound1.c[458,471] [2021-10-29 02:56:53,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 02:56:53,932 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 02:56:53,952 WARN L228 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_a6e01f42-e300-4f3f-a74d-c5b5060d62f2/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound1.c[458,471] [2021-10-29 02:56:53,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 02:56:53,983 INFO L208 MainTranslator]: Completed translation [2021-10-29 02:56:53,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:56:53 WrapperNode [2021-10-29 02:56:53,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 02:56:53,985 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 02:56:53,985 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 02:56:53,987 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 02:56:53,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:56:53" (1/1) ... [2021-10-29 02:56:54,003 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:56:53" (1/1) ... [2021-10-29 02:56:54,029 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 02:56:54,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 02:56:54,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 02:56:54,030 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 02:56:54,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:56:53" (1/1) ... [2021-10-29 02:56:54,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:56:53" (1/1) ... [2021-10-29 02:56:54,049 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:56:53" (1/1) ... [2021-10-29 02:56:54,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:56:53" (1/1) ... [2021-10-29 02:56:54,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:56:53" (1/1) ... [2021-10-29 02:56:54,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:56:53" (1/1) ... [2021-10-29 02:56:54,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:56:53" (1/1) ... [2021-10-29 02:56:54,059 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 02:56:54,060 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 02:56:54,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 02:56:54,060 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 02:56:54,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:56:53" (1/1) ... [2021-10-29 02:56:54,068 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 02:56:54,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e01f42-e300-4f3f-a74d-c5b5060d62f2/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 02:56:54,092 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e01f42-e300-4f3f-a74d-c5b5060d62f2/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 02:56:54,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e01f42-e300-4f3f-a74d-c5b5060d62f2/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 02:56:54,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 02:56:54,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 02:56:54,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 02:56:54,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 02:56:54,151 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-10-29 02:56:54,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-10-29 02:56:54,475 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 02:56:54,476 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-29 02:56:54,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:56:54 BoogieIcfgContainer [2021-10-29 02:56:54,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 02:56:54,479 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 02:56:54,480 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 02:56:54,489 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 02:56:54,490 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:56:54" (1/1) ... [2021-10-29 02:56:54,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 02:56:54,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:56:54,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2021-10-29 02:56:54,573 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2021-10-29 02:56:54,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 02:56:54,574 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:56:54,575 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:56:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:56:54,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:56:54,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:56:54,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2021-10-29 02:56:54,734 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2021-10-29 02:56:54,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 02:56:54,735 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:56:54,736 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:56:54,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:56:54,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:56:54,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:56:54,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2021-10-29 02:56:54,839 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2021-10-29 02:56:54,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 02:56:54,840 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:56:54,840 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:56:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:56:54,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 02:56:54,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:56:55,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:56:55,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:56:55,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2021-10-29 02:56:55,756 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2021-10-29 02:56:55,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 02:56:55,761 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:56:55,761 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:56:55,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:56:55,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 02:56:55,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:56:56,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:56:56,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:56:56,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 26 states and 41 transitions. [2021-10-29 02:56:56,513 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 41 transitions. [2021-10-29 02:56:56,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 02:56:56,514 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:56:56,514 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:56:56,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:56:56,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 02:56:56,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:56:56,727 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:56:57,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:56:57,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 29 states and 47 transitions. [2021-10-29 02:56:57,223 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 47 transitions. [2021-10-29 02:56:57,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 02:56:57,224 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:56:57,225 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:56:57,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:56:57,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 02:56:57,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:56:57,481 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:56:58,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:56:58,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 35 states and 62 transitions. [2021-10-29 02:56:58,289 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 62 transitions. [2021-10-29 02:56:58,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 02:56:58,290 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:56:58,290 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:56:58,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:56:58,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 02:56:58,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:56:58,383 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:56:58,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:56:58,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 25 states and 33 transitions. [2021-10-29 02:56:58,735 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2021-10-29 02:56:58,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 02:56:58,736 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:56:58,737 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:56:58,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:56:58,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 02:56:58,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:56:58,871 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-29 02:56:58,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:56:58,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 27 states and 41 transitions. [2021-10-29 02:56:58,961 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 41 transitions. [2021-10-29 02:56:58,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-29 02:56:58,963 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:56:58,963 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:56:59,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 02:56:59,016 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 02:56:59,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 02:56:59,057 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 9 iterations. [2021-10-29 02:56:59,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 02:56:59 ImpRootNode [2021-10-29 02:56:59,132 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 02:56:59,132 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 02:56:59,132 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 02:56:59,132 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 02:56:59,133 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:56:54" (3/4) ... [2021-10-29 02:56:59,135 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 02:56:59,260 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e01f42-e300-4f3f-a74d-c5b5060d62f2/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 02:56:59,260 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 02:56:59,274 INFO L168 Benchmark]: Toolchain (without parser) took 5644.67 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 77.3 MB in the beginning and 97.0 MB in the end (delta: -19.7 MB). Peak memory consumption was 2.5 MB. Max. memory is 16.1 GB. [2021-10-29 02:56:59,275 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 115.3 MB. Free memory was 93.7 MB in the beginning and 93.6 MB in the end (delta: 75.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 02:56:59,275 INFO L168 Benchmark]: CACSL2BoogieTranslator took 353.86 ms. Allocated memory is still 115.3 MB. Free memory was 77.1 MB in the beginning and 89.8 MB in the end (delta: -12.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 02:56:59,276 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.06 ms. Allocated memory is still 115.3 MB. Free memory was 89.8 MB in the beginning and 88.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 02:56:59,277 INFO L168 Benchmark]: Boogie Preprocessor took 28.94 ms. Allocated memory is still 115.3 MB. Free memory was 88.1 MB in the beginning and 87.1 MB in the end (delta: 994.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 02:56:59,278 INFO L168 Benchmark]: RCFGBuilder took 418.98 ms. Allocated memory is still 115.3 MB. Free memory was 87.1 MB in the beginning and 75.2 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 02:56:59,279 INFO L168 Benchmark]: CodeCheck took 4652.29 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 75.2 MB in the beginning and 100.1 MB in the end (delta: -25.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 16.1 GB. [2021-10-29 02:56:59,280 INFO L168 Benchmark]: Witness Printer took 139.66 ms. Allocated memory is still 138.4 MB. Free memory was 100.1 MB in the beginning and 97.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 02:56:59,285 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: 4.5s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2048 SDtfs, 214 SDslu, 470 SDs, 0 SdLazy, 4438 SolverSat, 1670 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 944 GetRequests, 842 SyntacticMatches, 22 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2122 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 307 SizeOfPredicates, 7 NumberOfNonLiveVariables, 452 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 19/24 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: 12]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L17] int counter = 0; [L19] short k; [L20] long long y, x, c; [L21] k = __VERIFIER_nondet_short() [L7] COND FALSE !(!cond) [L24] y = 0 [L25] x = 0 [L26] c = 0 VAL [counter=0] [L28] EXPR counter++ VAL [counter=1] [L28] COND TRUE counter++<1 [L29] CALL __VERIFIER_assert(-2*y*y*y*y*y*y - 6 * y*y*y*y*y - 5 * y*y*y*y + y*y + 12*x == 0) VAL [\old(cond)=1, counter=1] [L10] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L29] RET __VERIFIER_assert(-2*y*y*y*y*y*y - 6 * y*y*y*y*y - 5 * y*y*y*y + y*y + 12*x == 0) VAL [counter=1] [L31] COND FALSE !(!(c < k)) [L34] c = c + 1 [L35] y = y + 1 [L36] x = y * y * y * y * y + x VAL [counter=1] [L28] EXPR counter++ VAL [counter=2] [L28] COND FALSE !(counter++<1) [L39] CALL __VERIFIER_assert(-2*y*y*y*y*y*y - 6 * y*y*y*y*y - 5 * y*y*y*y + y*y + 12*x == 0) VAL [\old(cond)=1, counter=2] [L10] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L39] RET __VERIFIER_assert(-2*y*y*y*y*y*y - 6 * y*y*y*y*y - 5 * y*y*y*y + y*y + 12*x == 0) VAL [counter=2] [L40] CALL __VERIFIER_assert(k*y == y*y) VAL [\old(cond)=0, counter=2] [L10] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=2] [L12] 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 0.26 ms. Allocated memory is still 115.3 MB. Free memory was 93.7 MB in the beginning and 93.6 MB in the end (delta: 75.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 353.86 ms. Allocated memory is still 115.3 MB. Free memory was 77.1 MB in the beginning and 89.8 MB in the end (delta: -12.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.06 ms. Allocated memory is still 115.3 MB. Free memory was 89.8 MB in the beginning and 88.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.94 ms. Allocated memory is still 115.3 MB. Free memory was 88.1 MB in the beginning and 87.1 MB in the end (delta: 994.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 418.98 ms. Allocated memory is still 115.3 MB. Free memory was 87.1 MB in the beginning and 75.2 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 4652.29 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 75.2 MB in the beginning and 100.1 MB in the end (delta: -25.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 16.1 GB. * Witness Printer took 139.66 ms. Allocated memory is still 138.4 MB. Free memory was 100.1 MB in the beginning and 97.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-29 02:56:59,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e01f42-e300-4f3f-a74d-c5b5060d62f2/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...