./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 a0165632 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_dd31c719-becd-4927-9af5-5a28fbea6081/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd31c719-becd-4927-9af5-5a28fbea6081/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd31c719-becd-4927-9af5-5a28fbea6081/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd31c719-becd-4927-9af5-5a28fbea6081/bin/ukojak-verify-ImItNfHLgk/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_dd31c719-becd-4927-9af5-5a28fbea6081/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd31c719-becd-4927-9af5-5a28fbea6081/bin/ukojak-verify-ImItNfHLgk --witnessprinter.witness.filename witness --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 --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:02:38,813 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:02:38,874 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd31c719-becd-4927-9af5-5a28fbea6081/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-09 00:02:38,878 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:02:38,879 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:02:38,903 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:02:38,904 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:02:38,904 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:02:38,905 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:02:38,906 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:02:38,906 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:02:38,907 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:02:38,907 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:02:38,908 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:02:38,908 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:02:38,908 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:02:38,909 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:02:38,909 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:02:38,910 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:02:38,910 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:02:38,911 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:02:38,911 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:02:38,912 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:02:38,912 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:02:38,913 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:02:38,913 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:02:38,914 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:02:38,914 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:02:38,915 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:02:38,915 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:02:38,916 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:02:38,916 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:02:38,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:02:38,917 INFO L153 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_dd31c719-becd-4927-9af5-5a28fbea6081/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd31c719-becd-4927-9af5-5a28fbea6081/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c16561338eb70030ddc560fe6b7af6d1b48b7a566766a02092344cb5475a4c1a [2024-11-09 00:02:39,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:02:39,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:02:39,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:02:39,196 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:02:39,196 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:02:39,198 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd31c719-becd-4927-9af5-5a28fbea6081/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound20.c Unable to find full path for "g++" [2024-11-09 00:02:41,240 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:02:41,482 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:02:41,483 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd31c719-becd-4927-9af5-5a28fbea6081/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound20.c [2024-11-09 00:02:41,493 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd31c719-becd-4927-9af5-5a28fbea6081/bin/ukojak-verify-ImItNfHLgk/data/2093dfc73/c6aa99d8ee8a477383b01282fbd3cefa/FLAG8ee628b26 [2024-11-09 00:02:41,852 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd31c719-becd-4927-9af5-5a28fbea6081/bin/ukojak-verify-ImItNfHLgk/data/2093dfc73/c6aa99d8ee8a477383b01282fbd3cefa [2024-11-09 00:02:41,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:02:41,856 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:02:41,857 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:02:41,857 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:02:41,861 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:02:41,862 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:02:41" (1/1) ... [2024-11-09 00:02:41,863 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d1177c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:02:41, skipping insertion in model container [2024-11-09 00:02:41,863 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:02:41" (1/1) ... [2024-11-09 00:02:41,883 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:02:42,096 WARN L250 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_dd31c719-becd-4927-9af5-5a28fbea6081/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound20.c[524,537] [2024-11-09 00:02:42,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:02:42,127 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:02:42,138 WARN L250 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_dd31c719-becd-4927-9af5-5a28fbea6081/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound20.c[524,537] [2024-11-09 00:02:42,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:02:42,166 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:02:42,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:02:42 WrapperNode [2024-11-09 00:02:42,167 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:02:42,168 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:02:42,168 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:02:42,169 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:02:42,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:02:42" (1/1) ... [2024-11-09 00:02:42,183 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:02:42" (1/1) ... [2024-11-09 00:02:42,200 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 46 [2024-11-09 00:02:42,201 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:02:42,202 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:02:42,202 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:02:42,202 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:02:42,212 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:02:42" (1/1) ... [2024-11-09 00:02:42,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:02:42" (1/1) ... [2024-11-09 00:02:42,214 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:02:42" (1/1) ... [2024-11-09 00:02:42,215 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:02:42" (1/1) ... [2024-11-09 00:02:42,218 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:02:42" (1/1) ... [2024-11-09 00:02:42,222 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:02:42" (1/1) ... [2024-11-09 00:02:42,223 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:02:42" (1/1) ... [2024-11-09 00:02:42,225 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:02:42" (1/1) ... [2024-11-09 00:02:42,226 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:02:42,228 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:02:42,228 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:02:42,228 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:02:42,229 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:02:42" (1/1) ... [2024-11-09 00:02:42,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:02:42,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd31c719-becd-4927-9af5-5a28fbea6081/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:02:42,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd31c719-becd-4927-9af5-5a28fbea6081/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:02:42,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd31c719-becd-4927-9af5-5a28fbea6081/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:02:42,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:02:42,312 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 00:02:42,312 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 00:02:42,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 00:02:42,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:02:42,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:02:42,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 00:02:42,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 00:02:42,381 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:02:42,384 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:02:42,552 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-09 00:02:42,552 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:02:42,627 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:02:42,627 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 00:02:42,628 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:02:42 BoogieIcfgContainer [2024-11-09 00:02:42,628 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:02:42,629 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:02:42,629 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:02:42,660 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:02:42,660 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:02:42" (1/1) ... [2024-11-09 00:02:42,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:02:42,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:02:42,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2024-11-09 00:02:42,756 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2024-11-09 00:02:42,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 00:02:42,761 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:02:42,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:02:42,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:02:43,032 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 00:02:43,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:02:43,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2024-11-09 00:02:43,081 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2024-11-09 00:02:43,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 00:02:43,082 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:02:43,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:02:43,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:02:43,334 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 00:02:43,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:02:43,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 25 transitions. [2024-11-09 00:02:43,433 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2024-11-09 00:02:43,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 00:02:43,434 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:02:43,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:02:43,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 00:02:43,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:02:43,531 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 00:02:43,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:02:43,905 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 00:02:46,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.78s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 00:02:48,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 00:02:48,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:02:48,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 35 transitions. [2024-11-09 00:02:48,477 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2024-11-09 00:02:48,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 00:02:48,481 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:02:48,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:02:48,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:02:50,677 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 00:02:52,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 00:02:54,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 00:02:54,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:02:54,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 35 transitions. [2024-11-09 00:02:54,757 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2024-11-09 00:02:54,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 00:02:54,758 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:02:54,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:02:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 00:02:54,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:02:54,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 00:02:54,835 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:03:04,424 WARN L286 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 12 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 00:03:14,871 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 00:04:12,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 00:05:00,243 WARN L286 SmtUtils]: Spent 20.35s on a formula simplification. DAG size of input: 50 DAG size of output: 27 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 00:05:17,012 WARN L286 SmtUtils]: Spent 13.82s on a formula simplification. DAG size of input: 51 DAG size of output: 38 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 00:05:19,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 00:05:22,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.85s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 00:05:58,873 WARN L286 SmtUtils]: Spent 9.36s on a formula simplification. DAG size of input: 48 DAG size of output: 25 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 00:06:11,946 WARN L286 SmtUtils]: Spent 5.48s on a formula simplification. DAG size of input: 49 DAG size of output: 36 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 00:06:16,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:06:16,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 33 states and 49 transitions. [2024-11-09 00:06:16,251 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 49 transitions. [2024-11-09 00:06:16,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 00:06:16,252 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:06:16,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:06:16,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:06:16,567 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 00:06:28,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:06:28,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 37 states and 61 transitions. [2024-11-09 00:06:28,764 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 61 transitions. [2024-11-09 00:06:28,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 00:06:28,765 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:06:28,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:06:28,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 00:06:28,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:06:28,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 00:06:28,818 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:07:33,248 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 00:09:02,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.21s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 00:09:03,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 00:11:04,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.44s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 00:11:10,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.26s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 00:11:16,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.99s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 00:11:26,398 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse9 (+ |c_ULTIMATE.start_main_~u~0#1| 1))) (let ((.cse5 (= 3 |c_ULTIMATE.start_main_~v~0#1|)) (.cse6 (let ((.cse10 (div (+ (- 1) |c_ULTIMATE.start_main_~u~0#1|) 2))) (* .cse10 .cse10))) (.cse2 (= (mod .cse9 2) 0)) (.cse3 (= |c_ULTIMATE.start_main_~v~0#1| 1))) (and (let ((.cse1 (+ |c_ULTIMATE.start_main_~u~0#1| |c_ULTIMATE.start_main_~A~0#1|))) (or (let ((.cse0 (let ((.cse4 (div (+ |c_ULTIMATE.start_main_~u~0#1| (- 3)) 2))) (* .cse4 .cse4)))) (and (<= .cse0 |c_ULTIMATE.start_main_~A~0#1|) (<= (+ 5 .cse0) .cse1) .cse2 (= (+ 2 |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~A~0#1|) (+ .cse0 |c_ULTIMATE.start_main_~u~0#1|)) .cse3)) (and .cse5 (<= (+ |c_ULTIMATE.start_main_~A~0#1| 1) .cse6) (<= (+ 3 .cse6) .cse1) .cse2 (= .cse6 (+ |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~A~0#1| 1))))) (not (let ((.cse8 (div .cse9 2))) (let ((.cse7 (* .cse8 .cse8))) (and .cse5 (<= (+ |c_ULTIMATE.start_main_~u~0#1| |c_ULTIMATE.start_main_~A~0#1| 1) .cse7) (= .cse7 (+ |c_ULTIMATE.start_main_~u~0#1| |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~A~0#1| 1)) .cse2 (<= (+ 5 .cse7) (+ |c_ULTIMATE.start_main_~A~0#1| (* .cse8 4))))))) (not (and (= (+ |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~A~0#1|) .cse6) .cse2 .cse3))))) is different from false [2024-11-09 00:12:04,822 WARN L286 SmtUtils]: Spent 18.80s on a formula simplification. DAG size of input: 57 DAG size of output: 36 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 00:12:17,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:12:17,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 39 states and 66 transitions. [2024-11-09 00:12:17,122 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 66 transitions. [2024-11-09 00:12:17,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-09 00:12:17,124 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:12:17,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:12:17,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 00:12:17,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:12:17,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-09 00:12:17,213 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:13:45,512 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 00:15:06,624 WARN L286 SmtUtils]: Spent 1.30m on a formula simplification. DAG size of input: 64 DAG size of output: 47 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)