./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af324670-ad06-4249-ae8f-0d38c2aa58fb/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af324670-ad06-4249-ae8f-0d38c2aa58fb/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af324670-ad06-4249-ae8f-0d38c2aa58fb/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af324670-ad06-4249-ae8f-0d38c2aa58fb/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af324670-ad06-4249-ae8f-0d38c2aa58fb/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af324670-ad06-4249-ae8f-0d38c2aa58fb/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a74f29702f111ed73ba2cd9dfef16b5785bcb6a565ff8c65e98f4116fd8b0956 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:54:48,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:54:48,393 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:54:48,432 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:54:48,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:54:48,434 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:54:48,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:54:48,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:54:48,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:54:48,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:54:48,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:54:48,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:54:48,446 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:54:48,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:54:48,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:54:48,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:54:48,452 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:54:48,453 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:54:48,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:54:48,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:54:48,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:54:48,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:54:48,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:54:48,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:54:48,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:54:48,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:54:48,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:54:48,473 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:54:48,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:54:48,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:54:48,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:54:48,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:54:48,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:54:48,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:54:48,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:54:48,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:54:48,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:54:48,482 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:54:48,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:54:48,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:54:48,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:54:48,486 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af324670-ad06-4249-ae8f-0d38c2aa58fb/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:54:48,510 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:54:48,510 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:54:48,511 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:54:48,512 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:54:48,512 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:54:48,513 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:54:48,513 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:54:48,514 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:54:48,514 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:54:48,514 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:54:48,515 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:54:48,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:54:48,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:54:48,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:54:48,523 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:54:48,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:54:48,524 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:54:48,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:54:48,525 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:54:48,525 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:54:48,525 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:54:48,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:54:48,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:54:48,527 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:54:48,527 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:54:48,527 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:54:48,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:54:48,528 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:54:48,528 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_af324670-ad06-4249-ae8f-0d38c2aa58fb/bin/ukojak-LBtLqBUTdQ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af324670-ad06-4249-ae8f-0d38c2aa58fb/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a74f29702f111ed73ba2cd9dfef16b5785bcb6a565ff8c65e98f4116fd8b0956 [2021-11-23 00:54:48,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:54:48,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:54:48,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:54:48,889 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:54:48,890 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:54:48,892 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af324670-ad06-4249-ae8f-0d38c2aa58fb/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound2.c [2021-11-23 00:54:48,965 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af324670-ad06-4249-ae8f-0d38c2aa58fb/bin/ukojak-LBtLqBUTdQ/data/b14fb69c3/2c9a7ebbf1bd413cbfe16c88d434d9d9/FLAG7d135b22f [2021-11-23 00:54:49,400 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:54:49,400 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af324670-ad06-4249-ae8f-0d38c2aa58fb/sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound2.c [2021-11-23 00:54:49,413 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af324670-ad06-4249-ae8f-0d38c2aa58fb/bin/ukojak-LBtLqBUTdQ/data/b14fb69c3/2c9a7ebbf1bd413cbfe16c88d434d9d9/FLAG7d135b22f [2021-11-23 00:54:49,807 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af324670-ad06-4249-ae8f-0d38c2aa58fb/bin/ukojak-LBtLqBUTdQ/data/b14fb69c3/2c9a7ebbf1bd413cbfe16c88d434d9d9 [2021-11-23 00:54:49,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:54:49,813 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:54:49,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:54:49,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:54:49,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:54:49,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:54:49" (1/1) ... [2021-11-23 00:54:49,822 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30808451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:49, skipping insertion in model container [2021-11-23 00:54:49,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:54:49" (1/1) ... [2021-11-23 00:54:49,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:54:49,853 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:54:50,035 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af324670-ad06-4249-ae8f-0d38c2aa58fb/sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound2.c[538,551] [2021-11-23 00:54:50,053 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:54:50,062 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:54:50,099 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af324670-ad06-4249-ae8f-0d38c2aa58fb/sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound2.c[538,551] [2021-11-23 00:54:50,112 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:54:50,126 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:54:50,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:50 WrapperNode [2021-11-23 00:54:50,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:54:50,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:54:50,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:54:50,129 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:54:50,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:50" (1/1) ... [2021-11-23 00:54:50,144 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:50" (1/1) ... [2021-11-23 00:54:50,171 INFO L137 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2021-11-23 00:54:50,171 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:54:50,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:54:50,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:54:50,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:54:50,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:50" (1/1) ... [2021-11-23 00:54:50,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:50" (1/1) ... [2021-11-23 00:54:50,193 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:50" (1/1) ... [2021-11-23 00:54:50,194 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:50" (1/1) ... [2021-11-23 00:54:50,203 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:50" (1/1) ... [2021-11-23 00:54:50,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:50" (1/1) ... [2021-11-23 00:54:50,218 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:50" (1/1) ... [2021-11-23 00:54:50,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:54:50,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:54:50,227 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:54:50,228 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:54:50,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:50" (1/1) ... [2021-11-23 00:54:50,237 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:54:50,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af324670-ad06-4249-ae8f-0d38c2aa58fb/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:54:50,265 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af324670-ad06-4249-ae8f-0d38c2aa58fb/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:54:50,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af324670-ad06-4249-ae8f-0d38c2aa58fb/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:54:50,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:54:50,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:54:50,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:54:50,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:54:50,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 00:54:50,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 00:54:50,386 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:54:50,387 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:54:50,524 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:54:50,553 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:54:50,553 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 00:54:50,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:54:50 BoogieIcfgContainer [2021-11-23 00:54:50,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:54:50,557 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:54:50,557 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:54:50,568 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:54:50,568 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:54:50" (1/1) ... [2021-11-23 00:54:50,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:54:50,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:50,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2021-11-23 00:54:50,635 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2021-11-23 00:54:50,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:54:50,638 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:50,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:50,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:50,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:54:50,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:50,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2021-11-23 00:54:50,869 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2021-11-23 00:54:50,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:54:50,869 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:50,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:50,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:51,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:54:51,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:51,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 27 states and 43 transitions. [2021-11-23 00:54:51,091 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 43 transitions. [2021-11-23 00:54:51,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 00:54:51,100 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:51,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:51,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:51,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:54:51,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:51,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 29 states and 46 transitions. [2021-11-23 00:54:51,355 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 46 transitions. [2021-11-23 00:54:51,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 00:54:51,356 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:51,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:51,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:51,443 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:54:51,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:51,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 33 states and 52 transitions. [2021-11-23 00:54:51,898 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 52 transitions. [2021-11-23 00:54:51,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 00:54:51,900 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:51,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:51,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:51,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 00:54:51,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:54:52,328 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 00:54:53,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:53,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 38 states and 61 transitions. [2021-11-23 00:54:53,304 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2021-11-23 00:54:53,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 00:54:53,306 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:53,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:53,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:53,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 00:54:53,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:54:53,477 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:54:54,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:54,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 48 states and 94 transitions. [2021-11-23 00:54:54,947 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 94 transitions. [2021-11-23 00:54:54,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 00:54:54,948 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:54,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:54,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:54,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:54:54,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:54:55,264 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:54:56,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:56,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 52 states and 105 transitions. [2021-11-23 00:54:56,067 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 105 transitions. [2021-11-23 00:54:56,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 00:54:56,069 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:56,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:56,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:56,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 00:54:56,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:54:56,237 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:54:56,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:56,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 54 states and 106 transitions. [2021-11-23 00:54:56,670 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 106 transitions. [2021-11-23 00:54:56,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 00:54:56,672 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:56,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:56,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:54:56,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:54:57,011 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-23 00:54:58,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:58,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 59 states and 120 transitions. [2021-11-23 00:54:58,228 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 120 transitions. [2021-11-23 00:54:58,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 00:54:58,230 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:58,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:58,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:58,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:54:58,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:54:58,384 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-23 00:54:58,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:58,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 61 states and 121 transitions. [2021-11-23 00:54:58,932 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 121 transitions. [2021-11-23 00:54:58,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 00:54:58,934 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:58,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:58,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-23 00:54:58,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:54:59,431 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 00:55:02,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:55:02,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 66 states and 136 transitions. [2021-11-23 00:55:02,662 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 136 transitions. [2021-11-23 00:55:02,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 00:55:02,664 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:55:02,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:55:02,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:55:02,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-23 00:55:02,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:55:02,888 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 00:55:03,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:55:03,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 68 states and 137 transitions. [2021-11-23 00:55:03,715 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 137 transitions. [2021-11-23 00:55:03,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-23 00:55:03,717 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:55:03,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:55:03,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:55:03,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 00:55:03,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:55:04,345 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 00:55:08,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:55:08,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 74 states and 161 transitions. [2021-11-23 00:55:08,442 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 161 transitions. [2021-11-23 00:55:08,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 00:55:08,444 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:55:08,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:55:08,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:55:08,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 00:55:08,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:55:08,676 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 00:55:12,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:55:12,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 79 states and 174 transitions. [2021-11-23 00:55:12,902 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 174 transitions. [2021-11-23 00:55:12,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-23 00:55:12,903 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:55:12,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:55:12,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:55:12,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 00:55:12,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:55:13,291 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 00:55:14,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:55:14,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 81 states and 181 transitions. [2021-11-23 00:55:14,993 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 181 transitions. [2021-11-23 00:55:14,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 00:55:14,995 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:55:14,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:55:15,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:55:15,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:55:15,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:55:15,238 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:55:21,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:55:21,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 92 states and 235 transitions. [2021-11-23 00:55:21,586 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 235 transitions. [2021-11-23 00:55:21,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 00:55:21,588 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:55:21,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:55:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:55:21,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 00:55:21,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:55:23,306 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 00:55:32,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:55:32,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 96 states and 253 transitions. [2021-11-23 00:55:32,893 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 253 transitions. [2021-11-23 00:55:32,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 00:55:32,895 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:55:32,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:55:32,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:55:32,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:55:32,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:55:33,045 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:55:33,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:55:33,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 65 states and 165 transitions. [2021-11-23 00:55:33,991 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 165 transitions. [2021-11-23 00:55:33,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 00:55:33,992 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:55:33,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:55:34,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:55:34,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 00:55:34,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:55:34,930 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-11-23 00:55:36,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:55:36,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 48 states and 95 transitions. [2021-11-23 00:55:36,874 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 95 transitions. [2021-11-23 00:55:36,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 00:55:36,875 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:55:36,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:55:36,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:55:36,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:55:36,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:55:37,167 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-11-23 00:55:42,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:55:42,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 48 states and 94 transitions. [2021-11-23 00:55:42,126 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 94 transitions. [2021-11-23 00:55:42,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 00:55:42,127 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:55:42,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:55:42,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:55:42,153 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 00:55:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:55:42,187 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 21 iterations. [2021-11-23 00:55:42,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:55:42 ImpRootNode [2021-11-23 00:55:42,229 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 00:55:42,229 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 00:55:42,230 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 00:55:42,230 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 00:55:42,230 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:54:50" (3/4) ... [2021-11-23 00:55:42,232 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 00:55:42,317 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af324670-ad06-4249-ae8f-0d38c2aa58fb/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 00:55:42,317 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 00:55:42,319 INFO L158 Benchmark]: Toolchain (without parser) took 52504.73ms. Allocated memory was 94.4MB in the beginning and 182.5MB in the end (delta: 88.1MB). Free memory was 54.7MB in the beginning and 59.7MB in the end (delta: -5.0MB). Peak memory consumption was 84.9MB. Max. memory is 16.1GB. [2021-11-23 00:55:42,319 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 94.4MB. Free memory is still 71.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:55:42,320 INFO L158 Benchmark]: CACSL2BoogieTranslator took 312.33ms. Allocated memory was 94.4MB in the beginning and 125.8MB in the end (delta: 31.5MB). Free memory was 54.5MB in the beginning and 102.6MB in the end (delta: -48.1MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2021-11-23 00:55:42,321 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.52ms. Allocated memory is still 125.8MB. Free memory was 102.5MB in the beginning and 101.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:55:42,322 INFO L158 Benchmark]: Boogie Preprocessor took 52.11ms. Allocated memory is still 125.8MB. Free memory was 101.0MB in the beginning and 103.1MB in the end (delta: -2.2MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. [2021-11-23 00:55:42,323 INFO L158 Benchmark]: RCFGBuilder took 330.65ms. Allocated memory is still 125.8MB. Free memory was 103.1MB in the beginning and 91.8MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 00:55:42,324 INFO L158 Benchmark]: CodeCheck took 51672.28ms. Allocated memory was 125.8MB in the beginning and 182.5MB in the end (delta: 56.6MB). Free memory was 91.8MB in the beginning and 62.8MB in the end (delta: 29.0MB). Peak memory consumption was 86.2MB. Max. memory is 16.1GB. [2021-11-23 00:55:42,325 INFO L158 Benchmark]: Witness Printer took 88.14ms. Allocated memory is still 182.5MB. Free memory was 62.8MB in the beginning and 59.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:55:42,330 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: 51.6s, OverallIterations: 21, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2024 SdHoareTripleChecker+Valid, 29.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 555 mSDsluCounter, 2042 SdHoareTripleChecker+Invalid, 27.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 786 mSDsCounter, 2718 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7293 IncrementalHoareTripleChecker+Invalid, 10011 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2718 mSolverCounterUnsat, 1286 mSDtfsCounter, 7293 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6113 GetRequests, 5643 SyntacticMatches, 152 SemanticMatches, 318 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49330 ImplicationChecksByTransitivity, 43.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 641 NumberOfCodeBlocks, 641 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 573 ConstructedInterpolants, 0 QuantifiedInterpolants, 2245 SizeOfPredicates, 34 NumberOfNonLiveVariables, 1733 ConjunctsInSsa, 157 ConjunctsInUnsatCore, 20 InterpolantComputations, 14 PerfectInterpolantSequences, 761/816 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] unsigned int A, B; [L25] long long r, d, p, q; [L26] A = __VERIFIER_nondet_uint() [L27] B = __VERIFIER_nondet_uint() [L28] CALL assume_abort_if_not(B >= 1) [L12] COND FALSE !(!cond) [L28] RET assume_abort_if_not(B >= 1) [L30] r = A [L31] d = B [L32] p = 1 [L33] q = 0 VAL [A=1, B=1, counter=0, d=1, p=1, q=0, r=1] [L35] EXPR counter++ VAL [A=1, B=1, counter=1, counter++=0, d=1, p=1, q=0, r=1] [L35] COND TRUE counter++<2 [L36] CALL __VERIFIER_assert(q == 0) VAL [\old(cond)=1, counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L36] RET __VERIFIER_assert(q == 0) VAL [A=1, B=1, counter=1, d=1, p=1, q=0, r=1] [L37] CALL __VERIFIER_assert(r == A) VAL [\old(cond)=1, counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L37] RET __VERIFIER_assert(r == A) VAL [A=1, B=1, counter=1, d=1, p=1, q=0, r=1] [L38] CALL __VERIFIER_assert(d == B * p) VAL [\old(cond)=1, counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L38] RET __VERIFIER_assert(d == B * p) VAL [A=1, B=1, counter=1, d=1, p=1, q=0, r=1] [L39] COND FALSE !(!(r >= d)) [L41] d = 2 * d [L42] p = 2 * p VAL [A=1, B=1, counter=1, d=2, p=2, q=0, r=1] [L35] EXPR counter++ VAL [A=1, B=1, counter=2, counter++=1, d=2, p=2, q=0, r=1] [L35] COND TRUE counter++<2 [L36] CALL __VERIFIER_assert(q == 0) VAL [\old(cond)=1, counter=2] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L36] RET __VERIFIER_assert(q == 0) VAL [A=1, B=1, counter=2, d=2, p=2, q=0, r=1] [L37] CALL __VERIFIER_assert(r == A) VAL [\old(cond)=1, counter=2] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L37] RET __VERIFIER_assert(r == A) VAL [A=1, B=1, counter=2, d=2, p=2, q=0, r=1] [L38] CALL __VERIFIER_assert(d == B * p) VAL [\old(cond)=1, counter=2] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L38] RET __VERIFIER_assert(d == B * p) VAL [A=1, B=1, counter=2, d=2, p=2, q=0, r=1] [L39] COND TRUE !(r >= d) VAL [A=1, B=1, counter=2, d=2, p=2, q=0, r=1] [L45] EXPR counter++ VAL [A=1, B=1, counter=3, counter++=2, d=2, p=2, q=0, r=1] [L45] COND FALSE !(counter++<2) [L59] 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] [L59] RET __VERIFIER_assert(A == d*q + r) VAL [A=1, B=1, counter=3, d=2, p=2, q=0, r=1] [L60] 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 0.37ms. Allocated memory is still 94.4MB. Free memory is still 71.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 312.33ms. Allocated memory was 94.4MB in the beginning and 125.8MB in the end (delta: 31.5MB). Free memory was 54.5MB in the beginning and 102.6MB in the end (delta: -48.1MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.52ms. Allocated memory is still 125.8MB. Free memory was 102.5MB in the beginning and 101.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.11ms. Allocated memory is still 125.8MB. Free memory was 101.0MB in the beginning and 103.1MB in the end (delta: -2.2MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. * RCFGBuilder took 330.65ms. Allocated memory is still 125.8MB. Free memory was 103.1MB in the beginning and 91.8MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 51672.28ms. Allocated memory was 125.8MB in the beginning and 182.5MB in the end (delta: 56.6MB). Free memory was 91.8MB in the beginning and 62.8MB in the end (delta: 29.0MB). Peak memory consumption was 86.2MB. Max. memory is 16.1GB. * Witness Printer took 88.14ms. Allocated memory is still 182.5MB. Free memory was 62.8MB in the beginning and 59.7MB 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! [2021-11-23 00:55:42,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af324670-ad06-4249-ae8f-0d38c2aa58fb/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE