./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_f5cee581-f21c-4116-b7ba-6eeb194b6c52/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cee581-f21c-4116-b7ba-6eeb194b6c52/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cee581-f21c-4116-b7ba-6eeb194b6c52/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cee581-f21c-4116-b7ba-6eeb194b6c52/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cee581-f21c-4116-b7ba-6eeb194b6c52/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cee581-f21c-4116-b7ba-6eeb194b6c52/bin/ukojak-verify-G8NBE6pJGL --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 358d950fcb60363ca711e5ee684e998bf5a6b6b14c5043f9c788a7a76c08fd00 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:44:31,360 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:44:31,477 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cee581-f21c-4116-b7ba-6eeb194b6c52/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 02:44:31,489 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:44:31,489 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:44:31,529 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:44:31,530 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:44:31,531 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:44:31,532 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:44:31,537 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:44:31,538 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:44:31,539 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:44:31,539 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:44:31,541 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:44:31,542 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:44:31,542 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:44:31,542 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:44:31,543 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:44:31,543 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:44:31,544 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:44:31,544 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:44:31,545 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:44:31,545 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:44:31,546 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:44:31,546 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:44:31,547 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:44:31,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:44:31,548 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:44:31,549 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:44:31,549 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:44:31,550 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:44:31,551 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:44:31,551 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:44:31,551 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_f5cee581-f21c-4116-b7ba-6eeb194b6c52/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cee581-f21c-4116-b7ba-6eeb194b6c52/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 358d950fcb60363ca711e5ee684e998bf5a6b6b14c5043f9c788a7a76c08fd00 [2023-11-19 02:44:31,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:44:31,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:44:31,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:44:31,942 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:44:31,943 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:44:31,944 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cee581-f21c-4116-b7ba-6eeb194b6c52/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound20.c [2023-11-19 02:44:35,083 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:44:35,308 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:44:35,309 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cee581-f21c-4116-b7ba-6eeb194b6c52/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound20.c [2023-11-19 02:44:35,318 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cee581-f21c-4116-b7ba-6eeb194b6c52/bin/ukojak-verify-G8NBE6pJGL/data/7dd0e9262/f80242de0aef4932a0f70d56c7a52498/FLAG050b07967 [2023-11-19 02:44:35,335 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cee581-f21c-4116-b7ba-6eeb194b6c52/bin/ukojak-verify-G8NBE6pJGL/data/7dd0e9262/f80242de0aef4932a0f70d56c7a52498 [2023-11-19 02:44:35,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:44:35,343 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:44:35,347 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:44:35,347 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:44:35,352 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:44:35,353 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:44:35" (1/1) ... [2023-11-19 02:44:35,355 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27757d7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:44:35, skipping insertion in model container [2023-11-19 02:44:35,355 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:44:35" (1/1) ... [2023-11-19 02:44:35,381 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:44:35,549 WARN L240 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_f5cee581-f21c-4116-b7ba-6eeb194b6c52/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound20.c[546,559] [2023-11-19 02:44:35,570 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:44:35,580 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:44:35,590 WARN L240 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_f5cee581-f21c-4116-b7ba-6eeb194b6c52/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound20.c[546,559] [2023-11-19 02:44:35,595 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:44:35,610 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:44:35,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:44:35 WrapperNode [2023-11-19 02:44:35,611 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:44:35,612 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:44:35,612 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:44:35,612 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:44:35,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:44:35" (1/1) ... [2023-11-19 02:44:35,626 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:44:35" (1/1) ... [2023-11-19 02:44:35,642 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 46 [2023-11-19 02:44:35,642 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:44:35,643 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:44:35,643 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:44:35,643 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:44:35,650 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:44:35" (1/1) ... [2023-11-19 02:44:35,651 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:44:35" (1/1) ... [2023-11-19 02:44:35,652 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:44:35" (1/1) ... [2023-11-19 02:44:35,653 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:44:35" (1/1) ... [2023-11-19 02:44:35,656 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:44:35" (1/1) ... [2023-11-19 02:44:35,659 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:44:35" (1/1) ... [2023-11-19 02:44:35,660 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:44:35" (1/1) ... [2023-11-19 02:44:35,661 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:44:35" (1/1) ... [2023-11-19 02:44:35,663 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:44:35,664 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:44:35,664 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:44:35,664 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:44:35,665 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:44:35" (1/1) ... [2023-11-19 02:44:35,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:44:35,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cee581-f21c-4116-b7ba-6eeb194b6c52/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:44:35,696 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cee581-f21c-4116-b7ba-6eeb194b6c52/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:44:35,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cee581-f21c-4116-b7ba-6eeb194b6c52/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:44:35,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:44:35,742 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 02:44:35,742 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 02:44:35,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:44:35,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:44:35,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:44:35,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 02:44:35,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 02:44:35,821 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:44:35,823 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:44:35,975 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:44:36,004 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:44:36,004 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 02:44:36,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:44:36 BoogieIcfgContainer [2023-11-19 02:44:36,009 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:44:36,010 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:44:36,010 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:44:36,021 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:44:36,021 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:44:36" (1/1) ... [2023-11-19 02:44:36,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:44:36,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:44:36,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2023-11-19 02:44:36,081 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2023-11-19 02:44:36,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 02:44:36,085 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:44:36,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:44:36,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:44:36,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:44:36,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 02:44:36,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:44:36,282 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:44:36,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:44:36,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2023-11-19 02:44:36,305 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2023-11-19 02:44:36,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 02:44:36,306 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:44:36,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:44:36,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:44:36,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 02:44:36,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:44:36,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:44:36,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:44:36,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 25 states and 33 transitions. [2023-11-19 02:44:36,602 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2023-11-19 02:44:36,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 02:44:36,604 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:44:36,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:44:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:44:36,679 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 02:44:36,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:44:36,741 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:44:36,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:44:37,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 27 states and 36 transitions. [2023-11-19 02:44:37,000 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2023-11-19 02:44:37,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 02:44:37,002 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:44:37,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:44:37,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:44:37,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 02:44:37,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:44:37,150 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:44:37,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:44:37,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2023-11-19 02:44:37,309 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2023-11-19 02:44:37,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-19 02:44:37,310 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:44:37,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:44:37,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:44:37,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 02:44:37,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:44:37,636 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 02:44:38,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:44:38,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 38 states and 61 transitions. [2023-11-19 02:44:38,643 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2023-11-19 02:44:38,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 02:44:38,645 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:44:38,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:44:38,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:44:38,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 02:44:38,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:44:38,831 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:44:40,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:44:40,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 46 states and 83 transitions. [2023-11-19 02:44:40,090 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 83 transitions. [2023-11-19 02:44:40,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 02:44:40,092 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:44:40,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:44:40,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:44:40,122 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 02:44:40,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:44:40,150 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:44:40,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:44:40,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 48 states and 86 transitions. [2023-11-19 02:44:40,602 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 86 transitions. [2023-11-19 02:44:40,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-19 02:44:40,604 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:44:40,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:44:40,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:44:40,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-19 02:44:40,664 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:44:41,016 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:44:41,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:44:41,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 52 states and 96 transitions. [2023-11-19 02:44:41,931 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 96 transitions. [2023-11-19 02:44:41,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 02:44:41,933 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:44:41,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:44:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:44:42,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-19 02:44:42,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:44:42,761 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 02:44:46,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:44:46,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 58 states and 118 transitions. [2023-11-19 02:44:46,362 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 118 transitions. [2023-11-19 02:44:46,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 02:44:46,365 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:44:46,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:44:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:44:46,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-19 02:44:46,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:44:53,474 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 02:44:59,776 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|)) (.cse1 (<= 1 |c_ULTIMATE.start_main_~z~0#1|))) (and (= |c_ULTIMATE.start_main_~y~0#1| (* |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|)) (= |c_ULTIMATE.start_main_~x~0#1| (+ .cse0 |c_ULTIMATE.start_main_~z~0#1| 1)) (not (and (= |c_ULTIMATE.start_main_~x~0#1| 1) (= |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~z~0#1|))) (not (and (= |c_ULTIMATE.start_main_~y~0#1| .cse0) (= |c_ULTIMATE.start_main_~x~0#1| (+ |c_ULTIMATE.start_main_~z~0#1| 1)))) .cse1 (not (and .cse1 (exists ((|v_ULTIMATE.start_main_~x~0#1_22| Int)) (let ((.cse2 (* |v_ULTIMATE.start_main_~x~0#1_22| |c_ULTIMATE.start_main_~z~0#1|))) (and (= (+ |c_ULTIMATE.start_main_~z~0#1| (* |v_ULTIMATE.start_main_~x~0#1_22| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|)) (+ |c_ULTIMATE.start_main_~y~0#1| .cse2)) (= (+ .cse2 1) |c_ULTIMATE.start_main_~x~0#1|)))))))) is different from false [2023-11-19 02:45:08,322 WARN L876 $PredicateComparison]: unable to prove that (not (let ((.cse0 (* |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|)) (.cse1 (<= 1 |c_ULTIMATE.start_main_~z~0#1|))) (and (= |c_ULTIMATE.start_main_~y~0#1| (* |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|)) (= |c_ULTIMATE.start_main_~x~0#1| (+ .cse0 |c_ULTIMATE.start_main_~z~0#1| 1)) (not (and (= |c_ULTIMATE.start_main_~x~0#1| 1) (= |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~z~0#1|))) (not (and (= |c_ULTIMATE.start_main_~y~0#1| .cse0) (= |c_ULTIMATE.start_main_~x~0#1| (+ |c_ULTIMATE.start_main_~z~0#1| 1)))) .cse1 (not (and .cse1 (exists ((|v_ULTIMATE.start_main_~x~0#1_22| Int)) (let ((.cse2 (* |v_ULTIMATE.start_main_~x~0#1_22| |c_ULTIMATE.start_main_~z~0#1|))) (and (= (+ |c_ULTIMATE.start_main_~z~0#1| (* |v_ULTIMATE.start_main_~x~0#1_22| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|)) (+ |c_ULTIMATE.start_main_~y~0#1| .cse2)) (= (+ .cse2 1) |c_ULTIMATE.start_main_~x~0#1|))))))))) is different from true [2023-11-19 02:45:08,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:08,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 65 states and 144 transitions. [2023-11-19 02:45:08,370 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 144 transitions. [2023-11-19 02:45:08,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-19 02:45:08,374 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:45:08,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:45:08,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:08,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 41 conjunts are in the unsatisfiable core [2023-11-19 02:45:08,418 INFO L285 TraceCheckSpWp]: Computing forward predicates...