./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound10.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_232cda17-5d88-4550-87eb-cad3ae19a917/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_232cda17-5d88-4550-87eb-cad3ae19a917/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_232cda17-5d88-4550-87eb-cad3ae19a917/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_232cda17-5d88-4550-87eb-cad3ae19a917/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_232cda17-5d88-4550-87eb-cad3ae19a917/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_232cda17-5d88-4550-87eb-cad3ae19a917/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 96b71e4fe20331af08d1b5394215c6ca1c246124118142d0900823a256b0e31d --- 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 [2022-12-15 00:30:23,547 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-15 00:30:23,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-15 00:30:23,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-15 00:30:23,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-15 00:30:23,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-15 00:30:23,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-15 00:30:23,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-15 00:30:23,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-15 00:30:23,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-15 00:30:23,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-15 00:30:23,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-15 00:30:23,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-15 00:30:23,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-15 00:30:23,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-15 00:30:23,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-15 00:30:23,579 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-15 00:30:23,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-15 00:30:23,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-15 00:30:23,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-15 00:30:23,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-15 00:30:23,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-15 00:30:23,587 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-15 00:30:23,588 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-15 00:30:23,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-15 00:30:23,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-15 00:30:23,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-15 00:30:23,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-15 00:30:23,593 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-15 00:30:23,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-15 00:30:23,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-15 00:30:23,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-15 00:30:23,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-15 00:30:23,596 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-15 00:30:23,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-15 00:30:23,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-15 00:30:23,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-15 00:30:23,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-15 00:30:23,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-15 00:30:23,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-15 00:30:23,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-15 00:30:23,600 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_232cda17-5d88-4550-87eb-cad3ae19a917/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-12-15 00:30:23,619 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-15 00:30:23,619 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-15 00:30:23,620 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-15 00:30:23,620 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-15 00:30:23,621 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-15 00:30:23,621 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-15 00:30:23,621 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-15 00:30:23,622 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-15 00:30:23,622 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-15 00:30:23,622 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-15 00:30:23,622 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-15 00:30:23,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-15 00:30:23,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-15 00:30:23,623 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-15 00:30:23,623 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-15 00:30:23,623 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-15 00:30:23,623 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-15 00:30:23,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-15 00:30:23,623 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-15 00:30:23,623 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-15 00:30:23,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-15 00:30:23,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 00:30:23,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-15 00:30:23,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-15 00:30:23,624 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-15 00:30:23,625 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-15 00:30:23,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-15 00:30:23,625 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-15 00:30:23,625 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_232cda17-5d88-4550-87eb-cad3ae19a917/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_232cda17-5d88-4550-87eb-cad3ae19a917/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 96b71e4fe20331af08d1b5394215c6ca1c246124118142d0900823a256b0e31d [2022-12-15 00:30:23,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-15 00:30:23,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-15 00:30:23,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-15 00:30:23,826 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-15 00:30:23,826 INFO L275 PluginConnector]: CDTParser initialized [2022-12-15 00:30:23,827 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_232cda17-5d88-4550-87eb-cad3ae19a917/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound10.c [2022-12-15 00:30:26,440 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-15 00:30:26,569 INFO L351 CDTParser]: Found 1 translation units. [2022-12-15 00:30:26,569 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_232cda17-5d88-4550-87eb-cad3ae19a917/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound10.c [2022-12-15 00:30:26,573 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_232cda17-5d88-4550-87eb-cad3ae19a917/bin/ukojak-rkRKPMF4O4/data/15aab395f/9a9188bd581d41f8b477dd78d041e893/FLAG9cd159e95 [2022-12-15 00:30:26,584 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_232cda17-5d88-4550-87eb-cad3ae19a917/bin/ukojak-rkRKPMF4O4/data/15aab395f/9a9188bd581d41f8b477dd78d041e893 [2022-12-15 00:30:26,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-15 00:30:26,587 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-15 00:30:26,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-15 00:30:26,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-15 00:30:26,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-15 00:30:26,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:30:26" (1/1) ... [2022-12-15 00:30:26,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2133b0e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:26, skipping insertion in model container [2022-12-15 00:30:26,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:30:26" (1/1) ... [2022-12-15 00:30:26,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-15 00:30:26,607 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-15 00:30:26,723 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_232cda17-5d88-4550-87eb-cad3ae19a917/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound10.c[524,537] [2022-12-15 00:30:26,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 00:30:26,749 INFO L203 MainTranslator]: Completed pre-run [2022-12-15 00:30:26,758 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_232cda17-5d88-4550-87eb-cad3ae19a917/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound10.c[524,537] [2022-12-15 00:30:26,764 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 00:30:26,776 INFO L208 MainTranslator]: Completed translation [2022-12-15 00:30:26,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:26 WrapperNode [2022-12-15 00:30:26,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-15 00:30:26,778 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-15 00:30:26,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-15 00:30:26,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-15 00:30:26,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:26" (1/1) ... [2022-12-15 00:30:26,790 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:26" (1/1) ... [2022-12-15 00:30:26,803 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 46 [2022-12-15 00:30:26,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-15 00:30:26,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-15 00:30:26,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-15 00:30:26,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-15 00:30:26,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:26" (1/1) ... [2022-12-15 00:30:26,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:26" (1/1) ... [2022-12-15 00:30:26,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:26" (1/1) ... [2022-12-15 00:30:26,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:26" (1/1) ... [2022-12-15 00:30:26,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:26" (1/1) ... [2022-12-15 00:30:26,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:26" (1/1) ... [2022-12-15 00:30:26,821 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:26" (1/1) ... [2022-12-15 00:30:26,822 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:26" (1/1) ... [2022-12-15 00:30:26,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-15 00:30:26,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-15 00:30:26,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-15 00:30:26,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-15 00:30:26,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:26" (1/1) ... [2022-12-15 00:30:26,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 00:30:26,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_232cda17-5d88-4550-87eb-cad3ae19a917/bin/ukojak-rkRKPMF4O4/z3 [2022-12-15 00:30:26,855 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_232cda17-5d88-4550-87eb-cad3ae19a917/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-15 00:30:26,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_232cda17-5d88-4550-87eb-cad3ae19a917/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-15 00:30:26,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-15 00:30:26,887 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-15 00:30:26,887 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-15 00:30:26,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-15 00:30:26,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-15 00:30:26,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-15 00:30:26,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-15 00:30:26,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-15 00:30:26,939 INFO L235 CfgBuilder]: Building ICFG [2022-12-15 00:30:26,941 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-15 00:30:27,059 INFO L276 CfgBuilder]: Performing block encoding [2022-12-15 00:30:27,081 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-15 00:30:27,082 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-15 00:30:27,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:30:27 BoogieIcfgContainer [2022-12-15 00:30:27,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-15 00:30:27,084 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-15 00:30:27,084 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-15 00:30:27,091 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-15 00:30:27,091 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:30:27" (1/1) ... [2022-12-15 00:30:27,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-15 00:30:27,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:30:27,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2022-12-15 00:30:27,147 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2022-12-15 00:30:27,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-15 00:30:27,150 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:30:27,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:30:27,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:30:27,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-15 00:30:27,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 00:30:27,253 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-15 00:30:27,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:30:27,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2022-12-15 00:30:27,272 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2022-12-15 00:30:27,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-15 00:30:27,273 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:30:27,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:30:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:30:27,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-15 00:30:27,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 00:30:27,367 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-15 00:30:27,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:30:27,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2022-12-15 00:30:27,435 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2022-12-15 00:30:27,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-15 00:30:27,435 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:30:27,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:30:27,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:30:27,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-15 00:30:27,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 00:30:27,586 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-15 00:30:28,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:30:28,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 26 states and 35 transitions. [2022-12-15 00:30:28,966 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2022-12-15 00:30:28,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-15 00:30:28,967 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:30:28,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:30:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:30:28,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-15 00:30:28,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 00:30:29,554 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-15 00:30:31,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-15 00:30:33,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-15 00:30:33,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:30:33,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2022-12-15 00:30:33,813 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2022-12-15 00:30:33,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-15 00:30:33,814 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:30:33,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:30:33,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:30:33,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-15 00:30:33,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 00:30:33,906 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-15 00:30:43,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:30:43,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 38 states and 61 transitions. [2022-12-15 00:30:43,800 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2022-12-15 00:30:43,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-15 00:30:43,800 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:30:43,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:30:43,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:30:43,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-15 00:30:43,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 00:30:51,788 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-15 00:31:22,292 WARN L233 SmtUtils]: Spent 20.32s on a formula simplification. DAG size of input: 36 DAG size of output: 32 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-15 00:31:33,508 WARN L233 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-15 00:31:52,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.61s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-15 00:31:54,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:31:54,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 45 states and 81 transitions. [2022-12-15 00:31:54,325 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 81 transitions. [2022-12-15 00:31:54,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-15 00:31:54,325 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:31:54,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:31:54,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:31:54,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-15 00:31:54,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 00:32:16,221 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-15 00:32:25,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-15 00:32:36,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:32:36,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 47 states and 86 transitions. [2022-12-15 00:32:36,928 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 86 transitions. [2022-12-15 00:32:36,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-15 00:32:36,929 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:32:36,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:32:36,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:32:36,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-15 00:32:36,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 00:32:37,091 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-15 00:32:50,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:32:50,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 55 states and 110 transitions. [2022-12-15 00:32:50,629 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 110 transitions. [2022-12-15 00:32:50,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-15 00:32:50,630 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:32:50,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:32:50,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:32:50,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 26 conjunts are in the unsatisfiable core [2022-12-15 00:32:50,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 00:33:01,082 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) [2022-12-15 00:34:41,982 WARN L233 SmtUtils]: Spent 10.52s 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) [2022-12-15 00:34:42,309 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-15 00:34:49,937 WARN L233 SmtUtils]: Spent 5.66s on a formula simplification. DAG size of input: 89 DAG size of output: 56 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-15 00:36:44,271 WARN L233 SmtUtils]: Spent 19.92s on a formula simplification. DAG size of input: 90 DAG size of output: 33 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-15 00:37:19,857 WARN L233 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 89 DAG size of output: 56 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-15 00:39:23,120 WARN L233 SmtUtils]: Spent 14.50s on a formula simplification. DAG size of input: 90 DAG size of output: 33 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-15 00:40:00,740 WARN L233 SmtUtils]: Spent 6.69s on a formula simplification. DAG size of input: 70 DAG size of output: 35 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-15 00:40:51,192 WARN L233 SmtUtils]: Spent 43.48s on a formula simplification. DAG size of input: 71 DAG size of output: 50 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-15 00:41:26,736 WARN L233 SmtUtils]: Spent 20.25s on a formula simplification that was a NOOP. DAG size: 51 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-15 00:42:13,655 WARN L233 SmtUtils]: Spent 19.59s 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 00:42:50,811 WARN L233 SmtUtils]: Spent 5.09s on a formula simplification that was a NOOP. DAG size: 71 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-15 00:43:04,719 WARN L233 SmtUtils]: Spent 6.53s 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 00:43:43,268 WARN L233 SmtUtils]: Spent 18.39s 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 00:43:59,506 WARN L233 SmtUtils]: Spent 7.59s 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 00:44:35,557 WARN L233 SmtUtils]: Spent 13.76s 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 00:44:59,566 WARN L233 SmtUtils]: Spent 9.79s 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 00:45:08,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:45:08,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 61 states and 128 transitions. [2022-12-15 00:45:08,771 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 128 transitions. [2022-12-15 00:45:08,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-15 00:45:08,772 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:45:08,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:45:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:45:08,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-15 00:45:08,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 00:45:08,822 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.