./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13aa4c37-92fe-402f-860c-96e95f72139a/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13aa4c37-92fe-402f-860c-96e95f72139a/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13aa4c37-92fe-402f-860c-96e95f72139a/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13aa4c37-92fe-402f-860c-96e95f72139a/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13aa4c37-92fe-402f-860c-96e95f72139a/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13aa4c37-92fe-402f-860c-96e95f72139a/bin/ukojak-92XMlrwhuB --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 aeeaf8ddcaaadce0bb307be8d4cdfb2d28179f7ce6737573dce6c1be4b061da1 --- 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-dbf71c6-m [2022-10-17 16:53:55,958 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:53:55,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:53:55,998 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:53:55,998 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:53:56,000 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:53:56,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:53:56,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:53:56,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:53:56,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:53:56,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:53:56,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:53:56,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:53:56,013 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:53:56,014 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:53:56,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:53:56,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:53:56,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:53:56,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:53:56,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:53:56,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:53:56,027 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:53:56,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:53:56,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:53:56,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:53:56,045 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:53:56,045 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:53:56,051 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:53:56,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:53:56,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:53:56,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:53:56,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:53:56,057 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:53:56,058 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:53:56,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:53:56,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:53:56,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:53:56,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:53:56,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:53:56,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:53:56,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:53:56,072 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13aa4c37-92fe-402f-860c-96e95f72139a/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:53:56,124 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:53:56,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:53:56,127 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:53:56,127 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:53:56,128 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:53:56,128 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:53:56,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:53:56,128 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:53:56,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:53:56,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:53:56,130 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:53:56,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:53:56,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:53:56,132 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:53:56,132 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:53:56,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:53:56,132 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:53:56,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:53:56,133 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:53:56,134 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:53:56,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:53:56,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:53:56,139 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:53:56,139 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:53:56,140 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:53:56,140 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:53:56,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:53:56,140 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:53:56,140 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_13aa4c37-92fe-402f-860c-96e95f72139a/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13aa4c37-92fe-402f-860c-96e95f72139a/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aeeaf8ddcaaadce0bb307be8d4cdfb2d28179f7ce6737573dce6c1be4b061da1 [2022-10-17 16:53:56,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:53:56,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:53:56,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:53:56,416 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:53:56,417 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:53:56,419 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13aa4c37-92fe-402f-860c-96e95f72139a/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound100.c [2022-10-17 16:53:56,492 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13aa4c37-92fe-402f-860c-96e95f72139a/bin/ukojak-92XMlrwhuB/data/1c1d0061e/2706a99f95964187af38c5c17992d342/FLAG5980c8955 [2022-10-17 16:53:56,910 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:53:56,910 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13aa4c37-92fe-402f-860c-96e95f72139a/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound100.c [2022-10-17 16:53:56,924 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13aa4c37-92fe-402f-860c-96e95f72139a/bin/ukojak-92XMlrwhuB/data/1c1d0061e/2706a99f95964187af38c5c17992d342/FLAG5980c8955 [2022-10-17 16:53:57,306 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13aa4c37-92fe-402f-860c-96e95f72139a/bin/ukojak-92XMlrwhuB/data/1c1d0061e/2706a99f95964187af38c5c17992d342 [2022-10-17 16:53:57,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:53:57,309 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:53:57,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:53:57,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:53:57,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:53:57,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:53:57" (1/1) ... [2022-10-17 16:53:57,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52a835d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:57, skipping insertion in model container [2022-10-17 16:53:57,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:53:57" (1/1) ... [2022-10-17 16:53:57,335 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:53:57,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:53:57,525 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_13aa4c37-92fe-402f-860c-96e95f72139a/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound100.c[520,533] [2022-10-17 16:53:57,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:53:57,563 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:53:57,585 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_13aa4c37-92fe-402f-860c-96e95f72139a/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound100.c[520,533] [2022-10-17 16:53:57,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:53:57,625 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:53:57,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:57 WrapperNode [2022-10-17 16:53:57,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:53:57,627 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:53:57,628 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:53:57,630 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:53:57,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:57" (1/1) ... [2022-10-17 16:53:57,647 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:57" (1/1) ... [2022-10-17 16:53:57,666 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2022-10-17 16:53:57,666 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:53:57,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:53:57,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:53:57,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:53:57,674 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:57" (1/1) ... [2022-10-17 16:53:57,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:57" (1/1) ... [2022-10-17 16:53:57,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:57" (1/1) ... [2022-10-17 16:53:57,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:57" (1/1) ... [2022-10-17 16:53:57,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:57" (1/1) ... [2022-10-17 16:53:57,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:57" (1/1) ... [2022-10-17 16:53:57,684 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:57" (1/1) ... [2022-10-17 16:53:57,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:57" (1/1) ... [2022-10-17 16:53:57,686 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:53:57,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:53:57,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:53:57,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:53:57,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:57" (1/1) ... [2022-10-17 16:53:57,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:53:57,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13aa4c37-92fe-402f-860c-96e95f72139a/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:53:57,733 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13aa4c37-92fe-402f-860c-96e95f72139a/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:53:57,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13aa4c37-92fe-402f-860c-96e95f72139a/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:53:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:53:57,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:53:57,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:53:57,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:53:57,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 16:53:57,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 16:53:57,856 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:53:57,858 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:53:58,077 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:53:58,117 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:53:58,118 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 16:53:58,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:53:58 BoogieIcfgContainer [2022-10-17 16:53:58,121 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:53:58,122 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:53:58,122 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:53:58,154 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:53:58,154 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:53:58" (1/1) ... [2022-10-17 16:53:58,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:53:58,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:53:58,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 26 transitions. [2022-10-17 16:53:58,240 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2022-10-17 16:53:58,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:53:58,242 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:53:58,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:53:58,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:53:58,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:53:58,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:53:58,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2022-10-17 16:53:58,396 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2022-10-17 16:53:58,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:53:58,397 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:53:58,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:53:58,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:53:58,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:53:58,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:53:58,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2022-10-17 16:53:58,576 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2022-10-17 16:53:58,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:53:58,576 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:53:58,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:53:58,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:53:58,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:53:59,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:53:59,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 25 states and 40 transitions. [2022-10-17 16:53:59,212 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 40 transitions. [2022-10-17 16:53:59,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 16:53:59,219 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:53:59,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:53:59,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:53:59,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 16:53:59,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:53:59,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:53:59,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:53:59,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 29 states and 49 transitions. [2022-10-17 16:53:59,928 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 49 transitions. [2022-10-17 16:53:59,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-17 16:53:59,929 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:53:59,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:53:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:53:59,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 16:53:59,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:54:00,064 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:54:00,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:00,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 31 states and 54 transitions. [2022-10-17 16:54:00,266 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 54 transitions. [2022-10-17 16:54:00,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-17 16:54:00,269 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:00,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:00,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:54:00,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:54:00,476 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:54:19,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 18.32s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-10-17 16:54:35,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 15.89s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-10-17 16:54:35,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:35,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 33 states and 58 transitions. [2022-10-17 16:54:35,127 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 58 transitions. [2022-10-17 16:54:35,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-17 16:54:35,128 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:35,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:35,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:35,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:54:35,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:54:35,293 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 16:54:35,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:35,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 37 states and 66 transitions. [2022-10-17 16:54:35,936 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 66 transitions. [2022-10-17 16:54:35,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-17 16:54:35,937 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:35,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:35,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 16:54:35,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:54:36,124 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 16:54:37,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:37,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 47 states and 106 transitions. [2022-10-17 16:54:37,431 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 106 transitions. [2022-10-17 16:54:37,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-17 16:54:37,432 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:37,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:37,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:37,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:54:37,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:54:37,516 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 16:54:37,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:37,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 49 states and 107 transitions. [2022-10-17 16:54:37,917 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 107 transitions. [2022-10-17 16:54:37,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-17 16:54:37,918 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:37,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:37,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:54:37,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:54:38,061 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-17 16:54:38,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:38,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 51 states and 114 transitions. [2022-10-17 16:54:38,614 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 114 transitions. [2022-10-17 16:54:38,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-17 16:54:38,625 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:38,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:38,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:38,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-17 16:54:38,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:54:38,843 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-17 16:54:39,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:39,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 53 states and 124 transitions. [2022-10-17 16:54:39,808 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 124 transitions. [2022-10-17 16:54:39,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-17 16:54:39,810 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:39,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:39,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:39,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-17 16:54:39,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:54:39,931 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-17 16:54:40,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:40,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 53 states and 123 transitions. [2022-10-17 16:54:40,492 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 123 transitions. [2022-10-17 16:54:40,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-17 16:54:40,493 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:40,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:40,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:54:40,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:54:40,694 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked.