./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_c934fa7b-d942-47c1-b57c-5fc66a7c1949/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c934fa7b-d942-47c1-b57c-5fc66a7c1949/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c934fa7b-d942-47c1-b57c-5fc66a7c1949/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c934fa7b-d942-47c1-b57c-5fc66a7c1949/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c934fa7b-d942-47c1-b57c-5fc66a7c1949/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c934fa7b-d942-47c1-b57c-5fc66a7c1949/bin/ukojak-verify-Qdu7aM0XO9 --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 d6a7b66d62d8261743d542694624b328b551f76289ee08b3039b7ca01c3c317e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 22:36:48,852 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 22:36:48,913 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c934fa7b-d942-47c1-b57c-5fc66a7c1949/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-02 22:36:48,916 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 22:36:48,917 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 22:36:48,936 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 22:36:48,937 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 22:36:48,938 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 22:36:48,938 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 22:36:48,939 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 22:36:48,940 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 22:36:48,940 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 22:36:48,941 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 22:36:48,941 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 22:36:48,942 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 22:36:48,942 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 22:36:48,943 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 22:36:48,943 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 22:36:48,944 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 22:36:48,944 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 22:36:48,945 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 22:36:48,946 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 22:36:48,946 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 22:36:48,947 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 22:36:48,947 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 22:36:48,947 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 22:36:48,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:36:48,948 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 22:36:48,949 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 22:36:48,949 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 22:36:48,949 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 22:36:48,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 22:36:48,950 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 22:36:48,950 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_c934fa7b-d942-47c1-b57c-5fc66a7c1949/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c934fa7b-d942-47c1-b57c-5fc66a7c1949/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6a7b66d62d8261743d542694624b328b551f76289ee08b3039b7ca01c3c317e [2023-12-02 22:36:49,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 22:36:49,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 22:36:49,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 22:36:49,169 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 22:36:49,169 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 22:36:49,171 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c934fa7b-d942-47c1-b57c-5fc66a7c1949/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound20.c [2023-12-02 22:36:51,941 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 22:36:52,110 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 22:36:52,111 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c934fa7b-d942-47c1-b57c-5fc66a7c1949/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound20.c [2023-12-02 22:36:52,118 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c934fa7b-d942-47c1-b57c-5fc66a7c1949/bin/ukojak-verify-Qdu7aM0XO9/data/6a7e65f07/a03e0d4ea45e43e585cc97f7c73a0b25/FLAGac959a3f0 [2023-12-02 22:36:52,130 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c934fa7b-d942-47c1-b57c-5fc66a7c1949/bin/ukojak-verify-Qdu7aM0XO9/data/6a7e65f07/a03e0d4ea45e43e585cc97f7c73a0b25 [2023-12-02 22:36:52,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 22:36:52,134 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 22:36:52,135 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 22:36:52,136 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 22:36:52,140 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 22:36:52,141 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:36:52" (1/1) ... [2023-12-02 22:36:52,142 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f0b1fdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:52, skipping insertion in model container [2023-12-02 22:36:52,142 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:36:52" (1/1) ... [2023-12-02 22:36:52,160 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 22:36:52,281 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_c934fa7b-d942-47c1-b57c-5fc66a7c1949/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound20.c[524,537] [2023-12-02 22:36:52,298 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:36:52,307 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 22:36:52,317 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_c934fa7b-d942-47c1-b57c-5fc66a7c1949/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound20.c[524,537] [2023-12-02 22:36:52,326 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:36:52,341 INFO L206 MainTranslator]: Completed translation [2023-12-02 22:36:52,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:52 WrapperNode [2023-12-02 22:36:52,342 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 22:36:52,343 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 22:36:52,343 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 22:36:52,343 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 22:36:52,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:52" (1/1) ... [2023-12-02 22:36:52,355 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:52" (1/1) ... [2023-12-02 22:36:52,376 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2023-12-02 22:36:52,376 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 22:36:52,377 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 22:36:52,377 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 22:36:52,378 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 22:36:52,388 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:52" (1/1) ... [2023-12-02 22:36:52,388 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:52" (1/1) ... [2023-12-02 22:36:52,390 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:52" (1/1) ... [2023-12-02 22:36:52,390 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:52" (1/1) ... [2023-12-02 22:36:52,394 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:52" (1/1) ... [2023-12-02 22:36:52,398 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:52" (1/1) ... [2023-12-02 22:36:52,399 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:52" (1/1) ... [2023-12-02 22:36:52,400 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:52" (1/1) ... [2023-12-02 22:36:52,402 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 22:36:52,403 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 22:36:52,403 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 22:36:52,403 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 22:36:52,404 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:52" (1/1) ... [2023-12-02 22:36:52,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:36:52,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c934fa7b-d942-47c1-b57c-5fc66a7c1949/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 22:36:52,436 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c934fa7b-d942-47c1-b57c-5fc66a7c1949/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 22:36:52,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c934fa7b-d942-47c1-b57c-5fc66a7c1949/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 22:36:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 22:36:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 22:36:52,477 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 22:36:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 22:36:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 22:36:52,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 22:36:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 22:36:52,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 22:36:52,540 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 22:36:52,542 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 22:36:52,700 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 22:36:52,791 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 22:36:52,791 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 22:36:52,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:36:52 BoogieIcfgContainer [2023-12-02 22:36:52,793 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 22:36:52,794 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 22:36:52,794 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 22:36:52,803 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 22:36:52,803 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:36:52" (1/1) ... [2023-12-02 22:36:52,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 22:36:52,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:36:52,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2023-12-02 22:36:52,857 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2023-12-02 22:36:52,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 22:36:52,861 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:36:52,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:36:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:36:52,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 22:36:52,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:36:53,146 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 22:36:53,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:36:53,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2023-12-02 22:36:53,267 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2023-12-02 22:36:53,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 22:36:53,268 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:36:53,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:36:53,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:36:53,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 22:36:53,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:36:53,365 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 22:36:53,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:36:53,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2023-12-02 22:36:53,381 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2023-12-02 22:36:53,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 22:36:53,381 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:36:53,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:36:53,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:36:53,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 22:36:53,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:36:53,471 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 22:36:53,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:36:53,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2023-12-02 22:36:53,483 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2023-12-02 22:36:53,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 22:36:53,484 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:36:53,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:36:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:36:53,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 22:36:53,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:36:53,571 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 22:36:53,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:36:53,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2023-12-02 22:36:53,583 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2023-12-02 22:36:53,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 22:36:53,584 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:36:53,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:36:53,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:36:53,617 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 22:36:53,619 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:36:53,685 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 22:36:53,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:36:53,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2023-12-02 22:36:53,694 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2023-12-02 22:36:53,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 22:36:53,695 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:36:53,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:36:53,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:36:53,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 22:36:53,726 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:36:53,876 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 22:36:53,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:36:53,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 34 transitions. [2023-12-02 22:36:53,996 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2023-12-02 22:36:53,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 22:36:53,997 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:36:53,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:36:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:36:54,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 22:36:54,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:36:54,306 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 22:36:54,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:36:54,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 29 states and 47 transitions. [2023-12-02 22:36:54,789 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 47 transitions. [2023-12-02 22:36:54,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 22:36:54,790 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:36:54,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:36:54,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:36:54,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-02 22:36:54,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:36:55,909 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 22:36:58,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:36:58,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 34 states and 59 transitions. [2023-12-02 22:36:58,082 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 59 transitions. [2023-12-02 22:36:58,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-02 22:36:58,083 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:36:58,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:36:58,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:36:58,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 22:36:58,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:36:58,259 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 22:36:58,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:36:58,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 36 states and 66 transitions. [2023-12-02 22:36:58,797 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 66 transitions. [2023-12-02 22:36:58,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 22:36:58,799 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:36:58,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:36:58,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:36:58,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-02 22:36:58,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:37:00,635 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 22:37:02,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:37:02,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 38 states and 74 transitions. [2023-12-02 22:37:02,659 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 74 transitions. [2023-12-02 22:37:02,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 22:37:02,660 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:37:02,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:37:02,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:37:02,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-02 22:37:02,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:37:06,215 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 22:37:13,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 22:37:13,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:37:13,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 41 states and 80 transitions. [2023-12-02 22:37:13,894 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 80 transitions. [2023-12-02 22:37:13,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-02 22:37:13,895 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:37:13,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:37:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:37:13,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 22:37:13,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:37:14,749 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 22:37:15,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:37:15,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 43 states and 90 transitions. [2023-12-02 22:37:15,968 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 90 transitions. [2023-12-02 22:37:15,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-02 22:37:15,969 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:37:15,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:37:16,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:37:16,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-02 22:37:16,034 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:37:24,061 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 12 proven. 11 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 22:37:39,065 WARN L293 SmtUtils]: Spent 9.23s on a formula simplification that was a NOOP. DAG size: 109 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 22:37:46,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:37:46,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 45 states and 99 transitions. [2023-12-02 22:37:46,600 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 99 transitions. [2023-12-02 22:37:46,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 22:37:46,601 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:37:46,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:37:47,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:37:47,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-02 22:37:47,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:38:12,619 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 12 proven. 17 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 22:38:25,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 22:38:29,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-02 22:38:29,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:38:29,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 48 states and 106 transitions. [2023-12-02 22:38:29,309 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 106 transitions. [2023-12-02 22:38:29,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-02 22:38:29,310 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:38:29,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:38:29,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:29,354 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-02 22:38:29,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:38:31,098 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-02 22:39:17,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:39:17,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 49 states and 110 transitions. [2023-12-02 22:39:17,676 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 110 transitions. [2023-12-02 22:39:17,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-02 22:39:17,677 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:39:17,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:39:17,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:39:17,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-02 22:39:17,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:39:55,603 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 16 proven. 21 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-02 22:40:33,232 WARN L293 SmtUtils]: Spent 15.99s on a formula simplification that was a NOOP. DAG size: 210 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 22:40:41,873 WARN L293 SmtUtils]: Spent 6.14s on a formula simplification that was a NOOP. DAG size: 211 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 22:40:54,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:40:54,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 54 states and 125 transitions. [2023-12-02 22:40:54,817 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 125 transitions. [2023-12-02 22:40:54,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-02 22:40:54,818 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:40:54,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:40:56,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:40:56,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-02 22:40:56,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:41:59,905 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 16 proven. 29 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-02 22:42:13,085 WARN L293 SmtUtils]: Spent 11.35s on a formula simplification. DAG size of input: 227 DAG size of output: 202 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 22:42:45,333 WARN L293 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 540 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 22:43:03,813 WARN L293 SmtUtils]: Spent 8.24s on a formula simplification that was a NOOP. DAG size: 541 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 22:43:06,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 22:43:09,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-02 22:43:12,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:43:12,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 57 states and 131 transitions. [2023-12-02 22:43:12,011 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 131 transitions. [2023-12-02 22:43:12,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-02 22:43:12,012 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:43:12,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:43:12,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:43:12,080 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 22:43:12,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:43:15,584 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 23 proven. 19 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 22:43:48,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:43:48,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 59 states and 144 transitions. [2023-12-02 22:43:48,975 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 144 transitions. [2023-12-02 22:43:48,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-02 22:43:48,976 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:43:48,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:43:49,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:43:49,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 46 conjunts are in the unsatisfiable core [2023-12-02 22:43:49,463 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:45:25,258 WARN L293 SmtUtils]: Spent 8.78s on a formula simplification. DAG size of input: 328 DAG size of output: 328 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 22:46:46,971 WARN L293 SmtUtils]: Spent 27.01s on a formula simplification. DAG size of input: 324 DAG size of output: 204 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 22:46:49,884 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 21 proven. 31 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-02 22:47:45,533 WARN L293 SmtUtils]: Spent 35.59s on a formula simplification. DAG size of input: 468 DAG size of output: 468 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 22:48:27,593 WARN L293 SmtUtils]: Spent 27.74s on a formula simplification that was a NOOP. DAG size: 469 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 22:48:29,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-02 22:48:33,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-02 22:49:47,425 WARN L293 SmtUtils]: Spent 50.58s on a formula simplification. DAG size of input: 276 DAG size of output: 255 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 22:50:23,308 WARN L293 SmtUtils]: Spent 26.31s on a formula simplification that was a NOOP. DAG size: 256 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 22:50:25,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 22:50:27,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 22:50:28,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 22:50:31,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:50:31,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 61 states and 154 transitions. [2023-12-02 22:50:31,903 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 154 transitions. [2023-12-02 22:50:31,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-02 22:50:31,904 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:50:31,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:50:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:50:36,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 53 conjunts are in the unsatisfiable core [2023-12-02 22:50:36,271 INFO L285 TraceCheckSpWp]: Computing forward predicates...