./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4c84df-eb56-46fa-8a17-3d929b89f422/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4c84df-eb56-46fa-8a17-3d929b89f422/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_6a4c84df-eb56-46fa-8a17-3d929b89f422/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4c84df-eb56-46fa-8a17-3d929b89f422/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4c84df-eb56-46fa-8a17-3d929b89f422/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_6a4c84df-eb56-46fa-8a17-3d929b89f422/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 c16561338eb70030ddc560fe6b7af6d1b48b7a566766a02092344cb5475a4c1a --- 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 23:50:35,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 23:50:35,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 23:50:35,459 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 23:50:35,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 23:50:35,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 23:50:35,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 23:50:35,462 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 23:50:35,463 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 23:50:35,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 23:50:35,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 23:50:35,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 23:50:35,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 23:50:35,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 23:50:35,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 23:50:35,467 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 23:50:35,468 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 23:50:35,468 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 23:50:35,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 23:50:35,470 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 23:50:35,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 23:50:35,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 23:50:35,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 23:50:35,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 23:50:35,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 23:50:35,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 23:50:35,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 23:50:35,477 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 23:50:35,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 23:50:35,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 23:50:35,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 23:50:35,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 23:50:35,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 23:50:35,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 23:50:35,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 23:50:35,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 23:50:35,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 23:50:35,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 23:50:35,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 23:50:35,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 23:50:35,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 23:50:35,483 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4c84df-eb56-46fa-8a17-3d929b89f422/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-12-14 23:50:35,496 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 23:50:35,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 23:50:35,496 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 23:50:35,496 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 23:50:35,497 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 23:50:35,497 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 23:50:35,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 23:50:35,497 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 23:50:35,498 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 23:50:35,498 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 23:50:35,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 23:50:35,498 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 23:50:35,505 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 23:50:35,505 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 23:50:35,505 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 23:50:35,506 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 23:50:35,506 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 23:50:35,506 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 23:50:35,506 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 23:50:35,506 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 23:50:35,506 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 23:50:35,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 23:50:35,507 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 23:50:35,507 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 23:50:35,507 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 23:50:35,507 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 23:50:35,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 23:50:35,508 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 23:50:35,508 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_6a4c84df-eb56-46fa-8a17-3d929b89f422/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4c84df-eb56-46fa-8a17-3d929b89f422/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c16561338eb70030ddc560fe6b7af6d1b48b7a566766a02092344cb5475a4c1a [2022-12-14 23:50:35,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 23:50:35,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 23:50:35,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 23:50:35,702 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 23:50:35,703 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 23:50:35,704 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4c84df-eb56-46fa-8a17-3d929b89f422/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound20.c [2022-12-14 23:50:38,282 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 23:50:38,425 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 23:50:38,425 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4c84df-eb56-46fa-8a17-3d929b89f422/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound20.c [2022-12-14 23:50:38,431 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4c84df-eb56-46fa-8a17-3d929b89f422/bin/ukojak-rkRKPMF4O4/data/e74aa6be9/f02af018f5164169969172fe4da519de/FLAGa3ad8db53 [2022-12-14 23:50:38,841 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4c84df-eb56-46fa-8a17-3d929b89f422/bin/ukojak-rkRKPMF4O4/data/e74aa6be9/f02af018f5164169969172fe4da519de [2022-12-14 23:50:38,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 23:50:38,844 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 23:50:38,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 23:50:38,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 23:50:38,847 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 23:50:38,848 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:50:38" (1/1) ... [2022-12-14 23:50:38,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68c971d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:38, skipping insertion in model container [2022-12-14 23:50:38,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:50:38" (1/1) ... [2022-12-14 23:50:38,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 23:50:38,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 23:50:38,965 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_6a4c84df-eb56-46fa-8a17-3d929b89f422/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound20.c[524,537] [2022-12-14 23:50:38,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 23:50:38,986 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 23:50:38,994 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_6a4c84df-eb56-46fa-8a17-3d929b89f422/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound20.c[524,537] [2022-12-14 23:50:39,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 23:50:39,011 INFO L208 MainTranslator]: Completed translation [2022-12-14 23:50:39,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:39 WrapperNode [2022-12-14 23:50:39,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 23:50:39,012 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 23:50:39,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 23:50:39,012 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 23:50:39,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:39" (1/1) ... [2022-12-14 23:50:39,022 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:39" (1/1) ... [2022-12-14 23:50:39,034 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 46 [2022-12-14 23:50:39,034 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 23:50:39,035 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 23:50:39,035 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 23:50:39,035 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 23:50:39,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:39" (1/1) ... [2022-12-14 23:50:39,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:39" (1/1) ... [2022-12-14 23:50:39,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:39" (1/1) ... [2022-12-14 23:50:39,045 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:39" (1/1) ... [2022-12-14 23:50:39,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:39" (1/1) ... [2022-12-14 23:50:39,051 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:39" (1/1) ... [2022-12-14 23:50:39,051 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:39" (1/1) ... [2022-12-14 23:50:39,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:39" (1/1) ... [2022-12-14 23:50:39,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 23:50:39,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 23:50:39,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 23:50:39,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 23:50:39,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:39" (1/1) ... [2022-12-14 23:50:39,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 23:50:39,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4c84df-eb56-46fa-8a17-3d929b89f422/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 23:50:39,079 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4c84df-eb56-46fa-8a17-3d929b89f422/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 23:50:39,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4c84df-eb56-46fa-8a17-3d929b89f422/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 23:50:39,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 23:50:39,111 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 23:50:39,111 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 23:50:39,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 23:50:39,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 23:50:39,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 23:50:39,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 23:50:39,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 23:50:39,164 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 23:50:39,166 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 23:50:39,268 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 23:50:39,299 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 23:50:39,299 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 23:50:39,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:50:39 BoogieIcfgContainer [2022-12-14 23:50:39,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 23:50:39,301 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 23:50:39,301 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 23:50:39,308 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 23:50:39,308 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:50:39" (1/1) ... [2022-12-14 23:50:39,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 23:50:39,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:50:39,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2022-12-14 23:50:39,366 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2022-12-14 23:50:39,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 23:50:39,369 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:50:39,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:50:39,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:50:39,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 23:50:39,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 23:50:39,477 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 23:50:39,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:50:39,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2022-12-14 23:50:39,501 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2022-12-14 23:50:39,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 23:50:39,502 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:50:39,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:50:39,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:50:39,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 23:50:39,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 23:50:39,593 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 23:50:39,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:50:39,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2022-12-14 23:50:39,648 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2022-12-14 23:50:39,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 23:50:39,649 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:50:39,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:50:39,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:50:39,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-14 23:50:39,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 23:50:39,795 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 23:50:41,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:50:41,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 26 states and 35 transitions. [2022-12-14 23:50:41,470 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2022-12-14 23:50:41,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 23:50:41,472 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:50:41,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:50:41,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:50:41,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-14 23:50:41,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 23:50:42,132 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 23:50:44,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 23:50:44,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:50:44,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2022-12-14 23:50:44,950 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2022-12-14 23:50:44,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 23:50:44,951 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:50:44,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:50:44,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:50:44,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-14 23:50:44,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 23:50:53,662 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 23:51:16,160 WARN L233 SmtUtils]: Spent 20.17s on a formula simplification. DAG size of input: 34 DAG size of output: 30 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 23:51:31,242 WARN L233 SmtUtils]: Spent 10.04s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 23:51:57,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 23:52:02,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 23:52:22,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 23:52:50,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 23:52:50,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:52:50,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 37 states and 59 transitions. [2022-12-14 23:52:50,646 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 59 transitions. [2022-12-14 23:52:50,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 23:52:50,647 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:52:50,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:52:50,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:52:50,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 23:52:50,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 23:52:50,782 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 23:52:52,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:52:52,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 45 states and 84 transitions. [2022-12-14 23:52:52,335 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 84 transitions. [2022-12-14 23:52:52,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 23:52:52,336 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:52:52,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:52:52,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:52:52,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-14 23:52:52,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 23:53:10,682 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 23:53:21,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 23:53:23,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 23:53:30,585 WARN L233 SmtUtils]: Spent 5.43s on a formula simplification that was a NOOP. DAG size: 58 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 23:53:41,122 WARN L233 SmtUtils]: Spent 5.54s on a formula simplification that was a NOOP. DAG size: 59 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 23:53:41,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:53:41,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 47 states and 89 transitions. [2022-12-14 23:53:41,395 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 89 transitions. [2022-12-14 23:53:41,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 23:53:41,396 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:53:41,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:53:41,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:53:41,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 26 conjunts are in the unsatisfiable core [2022-12-14 23:53:41,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 23:53:51,651 WARN L233 SmtUtils]: Spent 10.01s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 23:55:47,898 WARN L233 SmtUtils]: Spent 10.46s on a formula simplification. DAG size of input: 74 DAG size of output: 70 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 23:55:48,191 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 23:57:42,657 WARN L233 SmtUtils]: Spent 47.72s on a formula simplification. DAG size of input: 69 DAG size of output: 48 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 23:58:13,106 WARN L233 SmtUtils]: Spent 20.22s on a formula simplification that was a NOOP. DAG size: 49 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-15 00:00:06,457 WARN L233 SmtUtils]: Spent 22.21s on a formula simplification. DAG size of input: 100 DAG size of output: 38 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-15 00:00:50,100 WARN L233 SmtUtils]: Spent 8.23s on a formula simplification. DAG size of input: 101 DAG size of output: 69 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-15 00:00:57,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.48s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2022-12-15 00:02:41,854 WARN L233 SmtUtils]: Spent 19.92s on a formula simplification. DAG size of input: 100 DAG size of output: 38 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-15 00:02:56,906 WARN L233 SmtUtils]: Spent 5.65s on a formula simplification. DAG size of input: 101 DAG size of output: 69 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-15 00:05:28,577 WARN L233 SmtUtils]: Spent 16.28s on a formula simplification. DAG size of input: 98 DAG size of output: 35 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-15 00:05:57,343 WARN L233 SmtUtils]: Spent 11.44s on a formula simplification. DAG size of input: 99 DAG size of output: 67 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-15 00:06:09,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:06:09,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 51 states and 102 transitions. [2022-12-15 00:06:09,926 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 102 transitions. [2022-12-15 00:06:09,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-15 00:06:09,927 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:06:09,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:06:09,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:06:09,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-15 00:06:09,988 INFO L286 TraceCheckSpWp]: Computing forward predicates...