./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85229d-9f40-444a-8394-55d5a854ef64/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85229d-9f40-444a-8394-55d5a854ef64/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85229d-9f40-444a-8394-55d5a854ef64/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85229d-9f40-444a-8394-55d5a854ef64/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85229d-9f40-444a-8394-55d5a854ef64/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85229d-9f40-444a-8394-55d5a854ef64/bin/ukojak-rkRKPMF4O4 --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 1ab6b58208d0c243ef581620bcab9aae54e201e00d3505f3320b182de5e7ff75 --- 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-2329fc7 [2022-12-14 22:51:23,286 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 22:51:23,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 22:51:23,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 22:51:23,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 22:51:23,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 22:51:23,303 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 22:51:23,304 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 22:51:23,305 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 22:51:23,305 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 22:51:23,306 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 22:51:23,307 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 22:51:23,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 22:51:23,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 22:51:23,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 22:51:23,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 22:51:23,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 22:51:23,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 22:51:23,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 22:51:23,313 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 22:51:23,314 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 22:51:23,315 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 22:51:23,316 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 22:51:23,317 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 22:51:23,319 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 22:51:23,319 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 22:51:23,319 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 22:51:23,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 22:51:23,321 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 22:51:23,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 22:51:23,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 22:51:23,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 22:51:23,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 22:51:23,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 22:51:23,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 22:51:23,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 22:51:23,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 22:51:23,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 22:51:23,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 22:51:23,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 22:51:23,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 22:51:23,326 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85229d-9f40-444a-8394-55d5a854ef64/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-12-14 22:51:23,340 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 22:51:23,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 22:51:23,341 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 22:51:23,341 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 22:51:23,342 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 22:51:23,342 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 22:51:23,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 22:51:23,342 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 22:51:23,342 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 22:51:23,342 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 22:51:23,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 22:51:23,343 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 22:51:23,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 22:51:23,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 22:51:23,343 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 22:51:23,343 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 22:51:23,343 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 22:51:23,343 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 22:51:23,343 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 22:51:23,344 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 22:51:23,344 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 22:51:23,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 22:51:23,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 22:51:23,344 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 22:51:23,344 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 22:51:23,344 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 22:51:23,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 22:51:23,345 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 22:51:23,345 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_eb85229d-9f40-444a-8394-55d5a854ef64/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85229d-9f40-444a-8394-55d5a854ef64/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ab6b58208d0c243ef581620bcab9aae54e201e00d3505f3320b182de5e7ff75 [2022-12-14 22:51:23,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 22:51:23,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 22:51:23,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 22:51:23,533 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 22:51:23,533 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 22:51:23,534 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85229d-9f40-444a-8394-55d5a854ef64/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound2.c [2022-12-14 22:51:26,099 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 22:51:26,234 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 22:51:26,234 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85229d-9f40-444a-8394-55d5a854ef64/sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound2.c [2022-12-14 22:51:26,239 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85229d-9f40-444a-8394-55d5a854ef64/bin/ukojak-rkRKPMF4O4/data/c3fbcdf79/381cf718a25e46a1bb598b0e3668048b/FLAGfdb3bc5a7 [2022-12-14 22:51:26,252 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85229d-9f40-444a-8394-55d5a854ef64/bin/ukojak-rkRKPMF4O4/data/c3fbcdf79/381cf718a25e46a1bb598b0e3668048b [2022-12-14 22:51:26,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 22:51:26,255 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 22:51:26,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 22:51:26,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 22:51:26,260 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 22:51:26,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:51:26" (1/1) ... [2022-12-14 22:51:26,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1549a057 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:26, skipping insertion in model container [2022-12-14 22:51:26,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:51:26" (1/1) ... [2022-12-14 22:51:26,269 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 22:51:26,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 22:51:26,407 WARN L237 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_eb85229d-9f40-444a-8394-55d5a854ef64/sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound2.c[526,539] [2022-12-14 22:51:26,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 22:51:26,431 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 22:51:26,441 WARN L237 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_eb85229d-9f40-444a-8394-55d5a854ef64/sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound2.c[526,539] [2022-12-14 22:51:26,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 22:51:26,459 INFO L208 MainTranslator]: Completed translation [2022-12-14 22:51:26,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:26 WrapperNode [2022-12-14 22:51:26,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 22:51:26,460 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 22:51:26,461 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 22:51:26,461 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 22:51:26,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:26" (1/1) ... [2022-12-14 22:51:26,473 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:26" (1/1) ... [2022-12-14 22:51:26,487 INFO L138 Inliner]: procedures = 14, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 69 [2022-12-14 22:51:26,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 22:51:26,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 22:51:26,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 22:51:26,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 22:51:26,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:26" (1/1) ... [2022-12-14 22:51:26,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:26" (1/1) ... [2022-12-14 22:51:26,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:26" (1/1) ... [2022-12-14 22:51:26,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:26" (1/1) ... [2022-12-14 22:51:26,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:26" (1/1) ... [2022-12-14 22:51:26,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:26" (1/1) ... [2022-12-14 22:51:26,505 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:26" (1/1) ... [2022-12-14 22:51:26,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:26" (1/1) ... [2022-12-14 22:51:26,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 22:51:26,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 22:51:26,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 22:51:26,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 22:51:26,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:26" (1/1) ... [2022-12-14 22:51:26,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 22:51:26,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85229d-9f40-444a-8394-55d5a854ef64/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 22:51:26,536 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85229d-9f40-444a-8394-55d5a854ef64/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 22:51:26,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85229d-9f40-444a-8394-55d5a854ef64/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 22:51:26,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 22:51:26,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 22:51:26,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 22:51:26,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 22:51:26,572 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 22:51:26,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 22:51:26,626 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 22:51:26,627 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 22:51:26,726 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 22:51:26,747 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 22:51:26,747 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 22:51:26,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:51:26 BoogieIcfgContainer [2022-12-14 22:51:26,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 22:51:26,750 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 22:51:26,750 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 22:51:26,757 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 22:51:26,757 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:51:26" (1/1) ... [2022-12-14 22:51:26,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 22:51:26,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:26,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2022-12-14 22:51:26,804 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2022-12-14 22:51:26,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 22:51:26,805 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:26,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:26,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:26,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:26,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 22:51:26,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 22:51:26,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 22:51:26,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:26,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2022-12-14 22:51:26,943 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2022-12-14 22:51:26,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 22:51:26,944 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:26,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:26,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:27,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 22:51:27,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:27,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 27 states and 43 transitions. [2022-12-14 22:51:27,118 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 43 transitions. [2022-12-14 22:51:27,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 22:51:27,121 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:27,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:27,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:27,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:27,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 22:51:27,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 22:51:27,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 22:51:27,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:27,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 29 states and 46 transitions. [2022-12-14 22:51:27,325 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 46 transitions. [2022-12-14 22:51:27,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 22:51:27,326 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:27,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:27,403 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 22:51:27,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:27,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 33 states and 52 transitions. [2022-12-14 22:51:27,631 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 52 transitions. [2022-12-14 22:51:27,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 22:51:27,632 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:27,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:27,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 19 conjunts are in the unsatisfiable core [2022-12-14 22:51:27,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 22:51:27,813 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 22:51:28,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:28,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 38 states and 61 transitions. [2022-12-14 22:51:28,429 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2022-12-14 22:51:28,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 22:51:28,431 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:28,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:28,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:28,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 22:51:28,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 22:51:28,550 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 22:51:28,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:28,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 42 states and 72 transitions. [2022-12-14 22:51:28,717 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 72 transitions. [2022-12-14 22:51:28,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 22:51:28,718 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:28,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:28,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 22:51:28,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 22:51:28,802 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 22:51:29,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:29,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 52 states and 106 transitions. [2022-12-14 22:51:29,488 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 106 transitions. [2022-12-14 22:51:29,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 22:51:29,489 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:29,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:29,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:29,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 22:51:29,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 22:51:29,564 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 22:51:29,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:29,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 54 states and 108 transitions. [2022-12-14 22:51:29,813 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 108 transitions. [2022-12-14 22:51:29,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 22:51:29,814 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:29,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:29,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:29,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 22:51:29,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 22:51:29,880 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-14 22:51:30,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:30,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 58 states and 118 transitions. [2022-12-14 22:51:30,381 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 118 transitions. [2022-12-14 22:51:30,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 22:51:30,382 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:30,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:30,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 22:51:30,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 22:51:30,418 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-14 22:51:30,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:30,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 60 states and 120 transitions. [2022-12-14 22:51:30,671 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 120 transitions. [2022-12-14 22:51:30,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-14 22:51:30,671 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:30,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:30,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-14 22:51:30,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 22:51:30,799 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-14 22:51:31,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:31,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 66 states and 140 transitions. [2022-12-14 22:51:31,870 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 140 transitions. [2022-12-14 22:51:31,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-14 22:51:31,871 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:31,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:31,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:31,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-14 22:51:31,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 22:51:31,959 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-14 22:51:32,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:32,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 68 states and 141 transitions. [2022-12-14 22:51:32,415 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 141 transitions. [2022-12-14 22:51:32,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-14 22:51:32,416 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:32,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:32,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:32,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-14 22:51:32,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 22:51:32,481 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-14 22:51:32,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:32,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 71 states and 157 transitions. [2022-12-14 22:51:32,700 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 157 transitions. [2022-12-14 22:51:32,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-12-14 22:51:32,701 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:32,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:32,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:32,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 22:51:32,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 22:51:32,773 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-12-14 22:51:33,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:33,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 76 states and 172 transitions. [2022-12-14 22:51:33,541 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 172 transitions. [2022-12-14 22:51:33,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-12-14 22:51:33,541 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:33,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:33,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:33,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 22:51:33,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 22:51:33,617 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-14 22:51:34,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:34,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 78 states and 180 transitions. [2022-12-14 22:51:34,001 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 180 transitions. [2022-12-14 22:51:34,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-14 22:51:34,001 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:34,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:34,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 22:51:34,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 22:51:34,161 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 22:51:36,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:36,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 92 states and 241 transitions. [2022-12-14 22:51:36,294 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 241 transitions. [2022-12-14 22:51:36,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-14 22:51:36,295 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:36,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:36,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:36,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-14 22:51:36,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 22:51:36,361 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 11 proven. 16 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-12-14 22:51:36,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:36,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 95 states and 247 transitions. [2022-12-14 22:51:36,986 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 247 transitions. [2022-12-14 22:51:36,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-14 22:51:36,987 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:36,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:37,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:37,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 22:51:37,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 22:51:37,094 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 22:51:37,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:37,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 63 states and 156 transitions. [2022-12-14 22:51:37,337 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 156 transitions. [2022-12-14 22:51:37,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-14 22:51:37,338 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:37,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:37,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:37,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-14 22:51:37,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 22:51:37,416 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 11 proven. 16 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 22:51:37,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:37,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 63 states and 155 transitions. [2022-12-14 22:51:37,791 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 155 transitions. [2022-12-14 22:51:37,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-14 22:51:37,792 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:37,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:37,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:37,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 22:51:37,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 22:51:38,015 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-12-14 22:51:38,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:38,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 46 states and 77 transitions. [2022-12-14 22:51:38,439 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 77 transitions. [2022-12-14 22:51:38,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-14 22:51:38,439 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:38,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:38,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 22:51:38,465 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 22:51:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 22:51:38,492 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 21 iterations. [2022-12-14 22:51:38,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 10:51:38 ImpRootNode [2022-12-14 22:51:38,526 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 22:51:38,527 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 22:51:38,527 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 22:51:38,527 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 22:51:38,527 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:51:26" (3/4) ... [2022-12-14 22:51:38,529 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 22:51:38,572 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85229d-9f40-444a-8394-55d5a854ef64/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 22:51:38,573 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 22:51:38,573 INFO L158 Benchmark]: Toolchain (without parser) took 12318.41ms. Allocated memory is still 180.4MB. Free memory was 147.4MB in the beginning and 45.8MB in the end (delta: 101.5MB). Peak memory consumption was 103.2MB. Max. memory is 16.1GB. [2022-12-14 22:51:38,573 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 127.9MB. Free memory was 90.9MB in the beginning and 90.9MB in the end (delta: 31.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 22:51:38,574 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.61ms. Allocated memory is still 180.4MB. Free memory was 147.0MB in the beginning and 136.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 22:51:38,574 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.15ms. Allocated memory is still 180.4MB. Free memory was 136.5MB in the beginning and 134.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 22:51:38,575 INFO L158 Benchmark]: Boogie Preprocessor took 19.73ms. Allocated memory is still 180.4MB. Free memory was 134.8MB in the beginning and 133.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 22:51:38,575 INFO L158 Benchmark]: RCFGBuilder took 240.70ms. Allocated memory is still 180.4MB. Free memory was 133.6MB in the beginning and 121.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 22:51:38,575 INFO L158 Benchmark]: CodeCheck took 11776.45ms. Allocated memory is still 180.4MB. Free memory was 120.3MB in the beginning and 49.0MB in the end (delta: 71.3MB). Peak memory consumption was 73.9MB. Max. memory is 16.1GB. [2022-12-14 22:51:38,576 INFO L158 Benchmark]: Witness Printer took 45.99ms. Allocated memory is still 180.4MB. Free memory was 49.0MB in the beginning and 45.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 22:51:38,578 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, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.7s, OverallIterations: 21, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2304 SdHoareTripleChecker+Valid, 8.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 899 mSDsluCounter, 1322 SdHoareTripleChecker+Invalid, 7.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 425 mSDsCounter, 2295 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7849 IncrementalHoareTripleChecker+Invalid, 10144 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2295 mSolverCounterUnsat, 897 mSDtfsCounter, 7849 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6412 GetRequests, 6046 SyntacticMatches, 102 SemanticMatches, 264 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33509 ImplicationChecksByTransitivity, 9.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 641 NumberOfCodeBlocks, 641 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 573 ConstructedInterpolants, 0 QuantifiedInterpolants, 1744 SizeOfPredicates, 27 NumberOfNonLiveVariables, 2113 ConjunctsInSsa, 189 ConjunctsInUnsatCore, 20 InterpolantComputations, 11 PerfectInterpolantSequences, 719/817 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: 17]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L22] int counter = 0; [L24] int A, B; [L25] int r, d, p, q; [L26] A = __VERIFIER_nondet_int() [L27] B = 1 [L29] r = A [L30] d = B [L31] p = 1 [L32] q = 0 VAL [A=1, B=1, counter=0, d=1, p=1, q=0, r=1] [L34] EXPR counter++ VAL [A=1, B=1, counter=1, counter++=0, d=1, p=1, q=0, r=1] [L34] COND TRUE counter++<2 [L35] CALL __VERIFIER_assert(q == 0) VAL [\old(cond)=1, counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L35] RET __VERIFIER_assert(q == 0) VAL [A=1, B=1, counter=1, d=1, p=1, q=0, r=1] [L36] CALL __VERIFIER_assert(r == A) VAL [\old(cond)=1, counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L36] RET __VERIFIER_assert(r == A) VAL [A=1, B=1, counter=1, d=1, p=1, q=0, r=1] [L37] CALL __VERIFIER_assert(d == B * p) VAL [\old(cond)=1, counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L37] RET __VERIFIER_assert(d == B * p) VAL [A=1, B=1, counter=1, d=1, p=1, q=0, r=1] [L38] COND FALSE !(!(r >= d)) [L40] d = 2 * d [L41] p = 2 * p VAL [A=1, B=1, counter=1, d=2, p=2, q=0, r=1] [L34] EXPR counter++ VAL [A=1, B=1, counter=2, counter++=1, d=2, p=2, q=0, r=1] [L34] COND TRUE counter++<2 [L35] CALL __VERIFIER_assert(q == 0) VAL [\old(cond)=1, counter=2] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L35] RET __VERIFIER_assert(q == 0) VAL [A=1, B=1, counter=2, d=2, p=2, q=0, r=1] [L36] CALL __VERIFIER_assert(r == A) VAL [\old(cond)=1, counter=2] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L36] RET __VERIFIER_assert(r == A) VAL [A=1, B=1, counter=2, d=2, p=2, q=0, r=1] [L37] CALL __VERIFIER_assert(d == B * p) VAL [\old(cond)=1, counter=2] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L37] RET __VERIFIER_assert(d == B * p) VAL [A=1, B=1, counter=2, d=2, p=2, q=0, r=1] [L38] COND TRUE !(r >= d) VAL [A=1, B=1, counter=2, d=2, p=2, q=0, r=1] [L44] EXPR counter++ VAL [A=1, B=1, counter=3, counter++=2, d=2, p=2, q=0, r=1] [L44] COND FALSE !(counter++<2) [L58] CALL __VERIFIER_assert(A == d*q + r) VAL [\old(cond)=1, counter=3] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=3] [L58] RET __VERIFIER_assert(A == d*q + r) VAL [A=1, B=1, counter=3, d=2, p=2, q=0, r=1] [L59] CALL __VERIFIER_assert(B == d) VAL [\old(cond)=0, counter=3] [L15] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=3] [L17] reach_error() VAL [\old(cond)=0, cond=0, counter=3] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 127.9MB. Free memory was 90.9MB in the beginning and 90.9MB in the end (delta: 31.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 203.61ms. Allocated memory is still 180.4MB. Free memory was 147.0MB in the beginning and 136.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.15ms. Allocated memory is still 180.4MB. Free memory was 136.5MB in the beginning and 134.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.73ms. Allocated memory is still 180.4MB. Free memory was 134.8MB in the beginning and 133.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 240.70ms. Allocated memory is still 180.4MB. Free memory was 133.6MB in the beginning and 121.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 11776.45ms. Allocated memory is still 180.4MB. Free memory was 120.3MB in the beginning and 49.0MB in the end (delta: 71.3MB). Peak memory consumption was 73.9MB. Max. memory is 16.1GB. * Witness Printer took 45.99ms. Allocated memory is still 180.4MB. Free memory was 49.0MB in the beginning and 45.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-12-14 22:51:38,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85229d-9f40-444a-8394-55d5a854ef64/bin/ukojak-rkRKPMF4O4/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