./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound1.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_c75989da-d236-4ee3-816b-f454cffd3bd3/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75989da-d236-4ee3-816b-f454cffd3bd3/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_c75989da-d236-4ee3-816b-f454cffd3bd3/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75989da-d236-4ee3-816b-f454cffd3bd3/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75989da-d236-4ee3-816b-f454cffd3bd3/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_c75989da-d236-4ee3-816b-f454cffd3bd3/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 0af3ae3e1b18402d7b766cf1943edddd3bf558b5da3e0e85ca5f8b1f74f72a1e --- 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 20:50:01,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 20:50:01,648 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 20:50:01,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 20:50:01,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 20:50:01,667 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 20:50:01,668 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 20:50:01,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 20:50:01,671 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 20:50:01,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 20:50:01,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 20:50:01,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 20:50:01,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 20:50:01,674 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 20:50:01,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 20:50:01,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 20:50:01,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 20:50:01,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 20:50:01,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 20:50:01,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 20:50:01,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 20:50:01,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 20:50:01,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 20:50:01,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 20:50:01,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 20:50:01,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 20:50:01,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 20:50:01,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 20:50:01,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 20:50:01,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 20:50:01,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 20:50:01,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 20:50:01,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 20:50:01,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 20:50:01,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 20:50:01,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 20:50:01,696 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 20:50:01,697 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 20:50:01,697 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 20:50:01,698 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 20:50:01,698 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 20:50:01,699 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75989da-d236-4ee3-816b-f454cffd3bd3/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-12-14 20:50:01,719 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 20:50:01,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 20:50:01,724 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 20:50:01,724 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 20:50:01,725 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 20:50:01,725 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 20:50:01,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 20:50:01,725 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 20:50:01,725 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 20:50:01,726 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 20:50:01,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 20:50:01,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 20:50:01,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 20:50:01,726 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 20:50:01,726 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 20:50:01,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 20:50:01,727 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 20:50:01,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 20:50:01,727 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 20:50:01,727 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 20:50:01,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 20:50:01,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 20:50:01,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 20:50:01,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 20:50:01,728 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 20:50:01,728 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 20:50:01,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 20:50:01,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 20:50:01,729 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_c75989da-d236-4ee3-816b-f454cffd3bd3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75989da-d236-4ee3-816b-f454cffd3bd3/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0af3ae3e1b18402d7b766cf1943edddd3bf558b5da3e0e85ca5f8b1f74f72a1e [2022-12-14 20:50:01,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 20:50:01,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 20:50:01,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 20:50:01,938 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 20:50:01,938 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 20:50:01,939 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75989da-d236-4ee3-816b-f454cffd3bd3/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound1.c [2022-12-14 20:50:04,437 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 20:50:04,585 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 20:50:04,586 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75989da-d236-4ee3-816b-f454cffd3bd3/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound1.c [2022-12-14 20:50:04,592 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75989da-d236-4ee3-816b-f454cffd3bd3/bin/ukojak-rkRKPMF4O4/data/02e580ff6/ae03a8503adc4188ab4a40b4fc608c2c/FLAG2273bb415 [2022-12-14 20:50:05,015 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75989da-d236-4ee3-816b-f454cffd3bd3/bin/ukojak-rkRKPMF4O4/data/02e580ff6/ae03a8503adc4188ab4a40b4fc608c2c [2022-12-14 20:50:05,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 20:50:05,017 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 20:50:05,018 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 20:50:05,018 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 20:50:05,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 20:50:05,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:50:05" (1/1) ... [2022-12-14 20:50:05,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@598eb62f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:50:05, skipping insertion in model container [2022-12-14 20:50:05,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:50:05" (1/1) ... [2022-12-14 20:50:05,027 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 20:50:05,038 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 20:50:05,159 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_c75989da-d236-4ee3-816b-f454cffd3bd3/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound1.c[489,502] [2022-12-14 20:50:05,176 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 20:50:05,184 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 20:50:05,195 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_c75989da-d236-4ee3-816b-f454cffd3bd3/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound1.c[489,502] [2022-12-14 20:50:05,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 20:50:05,214 INFO L208 MainTranslator]: Completed translation [2022-12-14 20:50:05,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:50:05 WrapperNode [2022-12-14 20:50:05,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 20:50:05,216 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 20:50:05,216 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 20:50:05,216 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 20:50:05,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:50:05" (1/1) ... [2022-12-14 20:50:05,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:50:05" (1/1) ... [2022-12-14 20:50:05,244 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 59 [2022-12-14 20:50:05,244 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 20:50:05,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 20:50:05,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 20:50:05,245 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 20:50:05,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:50:05" (1/1) ... [2022-12-14 20:50:05,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:50:05" (1/1) ... [2022-12-14 20:50:05,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:50:05" (1/1) ... [2022-12-14 20:50:05,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:50:05" (1/1) ... [2022-12-14 20:50:05,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:50:05" (1/1) ... [2022-12-14 20:50:05,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:50:05" (1/1) ... [2022-12-14 20:50:05,262 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:50:05" (1/1) ... [2022-12-14 20:50:05,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:50:05" (1/1) ... [2022-12-14 20:50:05,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 20:50:05,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 20:50:05,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 20:50:05,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 20:50:05,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:50:05" (1/1) ... [2022-12-14 20:50:05,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 20:50:05,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75989da-d236-4ee3-816b-f454cffd3bd3/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 20:50:05,291 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75989da-d236-4ee3-816b-f454cffd3bd3/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 20:50:05,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75989da-d236-4ee3-816b-f454cffd3bd3/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 20:50:05,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 20:50:05,326 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 20:50:05,326 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 20:50:05,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 20:50:05,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 20:50:05,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 20:50:05,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 20:50:05,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 20:50:05,384 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 20:50:05,386 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 20:50:05,480 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 20:50:05,502 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 20:50:05,502 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 20:50:05,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:50:05 BoogieIcfgContainer [2022-12-14 20:50:05,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 20:50:05,505 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 20:50:05,505 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 20:50:05,511 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 20:50:05,511 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:50:05" (1/1) ... [2022-12-14 20:50:05,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 20:50:05,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:50:05,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2022-12-14 20:50:05,554 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2022-12-14 20:50:05,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 20:50:05,564 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:50:05,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:50:05,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:50:05,663 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 20:50:05,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:50:05,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2022-12-14 20:50:05,686 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2022-12-14 20:50:05,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 20:50:05,686 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:50:05,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:50:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:50:05,783 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 20:50:05,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:50:05,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 35 transitions. [2022-12-14 20:50:05,834 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2022-12-14 20:50:05,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 20:50:05,835 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:50:05,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:50:05,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:50:05,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 20:50:05,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 20:50:05,993 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 20:50:06,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:50:06,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 31 states and 50 transitions. [2022-12-14 20:50:06,195 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 50 transitions. [2022-12-14 20:50:06,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 20:50:06,197 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:50:06,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:50:06,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:50:06,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-14 20:50:06,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 20:50:06,354 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 20:50:06,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:50:06,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 35 states and 59 transitions. [2022-12-14 20:50:06,939 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 59 transitions. [2022-12-14 20:50:06,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 20:50:06,939 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:50:06,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:50:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:50:06,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-14 20:50:06,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 20:50:07,249 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 20:50:08,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:50:08,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 42 states and 80 transitions. [2022-12-14 20:50:08,400 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 80 transitions. [2022-12-14 20:50:08,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 20:50:08,401 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:50:08,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:50:08,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:50:08,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 20:50:08,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 20:50:08,465 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 20:50:08,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:50:08,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 43 states and 81 transitions. [2022-12-14 20:50:08,520 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 81 transitions. [2022-12-14 20:50:08,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-14 20:50:08,521 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:50:08,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:50:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 20:50:08,549 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 20:50:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 20:50:08,577 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2022-12-14 20:50:08,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 08:50:08 ImpRootNode [2022-12-14 20:50:08,608 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 20:50:08,608 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 20:50:08,608 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 20:50:08,608 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 20:50:08,609 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:50:05" (3/4) ... [2022-12-14 20:50:08,611 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 20:50:08,661 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75989da-d236-4ee3-816b-f454cffd3bd3/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 20:50:08,661 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 20:50:08,662 INFO L158 Benchmark]: Toolchain (without parser) took 3644.35ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 84.0MB in the beginning and 94.0MB in the end (delta: -10.0MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2022-12-14 20:50:08,663 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory was 85.7MB in the beginning and 85.5MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 20:50:08,663 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.69ms. Allocated memory is still 117.4MB. Free memory was 83.8MB in the beginning and 73.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 20:50:08,664 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.78ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 71.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 20:50:08,664 INFO L158 Benchmark]: Boogie Preprocessor took 19.62ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 70.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 20:50:08,665 INFO L158 Benchmark]: RCFGBuilder took 238.79ms. Allocated memory is still 117.4MB. Free memory was 70.5MB in the beginning and 57.8MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 20:50:08,665 INFO L158 Benchmark]: CodeCheck took 3103.02ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 57.6MB in the beginning and 96.1MB in the end (delta: -38.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 20:50:08,666 INFO L158 Benchmark]: Witness Printer took 53.30ms. Allocated memory is still 142.6MB. Free memory was 96.1MB in the beginning and 94.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 20:50:08,668 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 3 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 371 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 248 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 134 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 523 IncrementalHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 134 mSolverCounterUnsat, 234 mSDtfsCounter, 523 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1046 GetRequests, 958 SyntacticMatches, 2 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2365 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 146 NumberOfCodeBlocks, 146 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 340 SizeOfPredicates, 12 NumberOfNonLiveVariables, 348 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 35/40 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: 13]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L18] int counter = 0; [L20] long long a, b, p, q, r, s; [L21] int x, y; [L22] x = __VERIFIER_nondet_int() [L23] y = __VERIFIER_nondet_int() [L24] CALL assume_abort_if_not(x >= 1) VAL [\old(cond)=1, counter=0] [L8] COND FALSE !(!cond) [L24] RET assume_abort_if_not(x >= 1) VAL [counter=0, x=2, y=3] [L25] CALL assume_abort_if_not(y >= 1) VAL [\old(cond)=1, counter=0] [L8] COND FALSE !(!cond) [L25] RET assume_abort_if_not(y >= 1) VAL [counter=0, x=2, y=3] [L27] a = x [L28] b = y [L29] p = 1 [L30] q = 0 [L31] r = 0 [L32] s = 1 VAL [a=2, b=3, counter=0, p=1, q=0, r=0, s=1, x=2, y=3] [L34] EXPR counter++ VAL [a=2, b=3, counter=1, counter++=0, p=1, q=0, r=0, s=1, x=2, y=3] [L34] COND TRUE counter++<1 [L35] CALL __VERIFIER_assert(1 == p * s - r * q) VAL [\old(cond)=1, counter=1] [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L35] RET __VERIFIER_assert(1 == p * s - r * q) VAL [a=2, b=3, counter=1, p=1, q=0, r=0, s=1, x=2, y=3] [L36] CALL __VERIFIER_assert(a == y * r + x * p) VAL [\old(cond)=1, counter=1] [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L36] RET __VERIFIER_assert(a == y * r + x * p) VAL [a=2, b=3, counter=1, p=1, q=0, r=0, s=1, x=2, y=3] [L37] CALL __VERIFIER_assert(b == x * q + y * s) VAL [\old(cond)=1, counter=1] [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L37] RET __VERIFIER_assert(b == x * q + y * s) VAL [a=2, b=3, counter=1, p=1, q=0, r=0, s=1, x=2, y=3] [L39] COND FALSE !(!(a != b)) [L42] COND FALSE !(a > b) [L47] b = b - a [L48] q = q - p [L49] s = s - r VAL [a=2, b=1, counter=1, p=1, q=-1, r=0, s=1, x=2, y=3] [L34] EXPR counter++ VAL [a=2, b=1, counter=2, counter++=1, p=1, q=-1, r=0, s=1, x=2, y=3] [L34] COND FALSE !(counter++<1) [L53] CALL __VERIFIER_assert(a - b == 0) VAL [\old(cond)=0, counter=2] [L11] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=2] [L13] reach_error() VAL [\old(cond)=0, cond=0, counter=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory was 85.7MB in the beginning and 85.5MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 196.69ms. Allocated memory is still 117.4MB. Free memory was 83.8MB in the beginning and 73.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.78ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 71.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.62ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 70.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 238.79ms. Allocated memory is still 117.4MB. Free memory was 70.5MB in the beginning and 57.8MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 3103.02ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 57.6MB in the beginning and 96.1MB in the end (delta: -38.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 53.30ms. Allocated memory is still 142.6MB. Free memory was 96.1MB in the beginning and 94.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-12-14 20:50:08,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75989da-d236-4ee3-816b-f454cffd3bd3/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