./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_c5bd6fb7-43ea-4859-b456-a3c2d14b2b97/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5bd6fb7-43ea-4859-b456-a3c2d14b2b97/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_c5bd6fb7-43ea-4859-b456-a3c2d14b2b97/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5bd6fb7-43ea-4859-b456-a3c2d14b2b97/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5bd6fb7-43ea-4859-b456-a3c2d14b2b97/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_c5bd6fb7-43ea-4859-b456-a3c2d14b2b97/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 be4e75b70a907f4bb3fe11ead30460ebebe535afde280ea19731f48bb2dd2cd7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:25:06,572 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:25:06,640 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5bd6fb7-43ea-4859-b456-a3c2d14b2b97/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-02 23:25:06,645 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 23:25:06,646 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 23:25:06,680 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:25:06,681 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 23:25:06,682 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 23:25:06,683 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:25:06,683 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:25:06,684 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:25:06,684 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:25:06,685 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 23:25:06,685 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:25:06,686 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 23:25:06,686 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:25:06,697 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:25:06,698 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:25:06,698 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:25:06,699 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 23:25:06,699 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:25:06,700 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:25:06,700 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:25:06,701 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:25:06,701 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:25:06,701 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:25:06,702 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:25:06,702 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:25:06,703 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:25:06,703 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 23:25:06,703 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 23:25:06,704 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 23:25:06,704 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 23:25:06,705 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_c5bd6fb7-43ea-4859-b456-a3c2d14b2b97/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5bd6fb7-43ea-4859-b456-a3c2d14b2b97/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be4e75b70a907f4bb3fe11ead30460ebebe535afde280ea19731f48bb2dd2cd7 [2023-12-02 23:25:06,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:25:06,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:25:06,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:25:06,955 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:25:06,955 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:25:06,956 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5bd6fb7-43ea-4859-b456-a3c2d14b2b97/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound20.c [2023-12-02 23:25:09,647 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:25:09,816 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:25:09,817 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5bd6fb7-43ea-4859-b456-a3c2d14b2b97/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound20.c [2023-12-02 23:25:09,823 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5bd6fb7-43ea-4859-b456-a3c2d14b2b97/bin/ukojak-verify-Qdu7aM0XO9/data/8e00739da/fc68e887e2bf436a94074aa0606f2b3f/FLAG6da111bbb [2023-12-02 23:25:09,834 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5bd6fb7-43ea-4859-b456-a3c2d14b2b97/bin/ukojak-verify-Qdu7aM0XO9/data/8e00739da/fc68e887e2bf436a94074aa0606f2b3f [2023-12-02 23:25:09,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:25:09,837 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:25:09,838 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:25:09,838 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:25:09,842 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:25:09,843 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:25:09" (1/1) ... [2023-12-02 23:25:09,843 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1debb458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:09, skipping insertion in model container [2023-12-02 23:25:09,844 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:25:09" (1/1) ... [2023-12-02 23:25:09,861 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:25:09,985 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_c5bd6fb7-43ea-4859-b456-a3c2d14b2b97/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound20.c[1176,1189] [2023-12-02 23:25:09,998 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:25:10,006 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:25:10,016 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_c5bd6fb7-43ea-4859-b456-a3c2d14b2b97/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound20.c[1176,1189] [2023-12-02 23:25:10,021 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:25:10,033 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:25:10,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:10 WrapperNode [2023-12-02 23:25:10,034 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:25:10,035 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:25:10,035 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:25:10,035 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:25:10,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:10" (1/1) ... [2023-12-02 23:25:10,046 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:10" (1/1) ... [2023-12-02 23:25:10,063 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2023-12-02 23:25:10,064 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:25:10,064 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:25:10,065 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:25:10,065 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:25:10,072 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:10" (1/1) ... [2023-12-02 23:25:10,073 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:10" (1/1) ... [2023-12-02 23:25:10,074 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:10" (1/1) ... [2023-12-02 23:25:10,074 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:10" (1/1) ... [2023-12-02 23:25:10,076 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:10" (1/1) ... [2023-12-02 23:25:10,079 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:10" (1/1) ... [2023-12-02 23:25:10,080 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:10" (1/1) ... [2023-12-02 23:25:10,080 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:10" (1/1) ... [2023-12-02 23:25:10,082 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:25:10,082 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:25:10,082 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:25:10,083 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:25:10,083 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:10" (1/1) ... [2023-12-02 23:25:10,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:25:10,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5bd6fb7-43ea-4859-b456-a3c2d14b2b97/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:25:10,108 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5bd6fb7-43ea-4859-b456-a3c2d14b2b97/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:25:10,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5bd6fb7-43ea-4859-b456-a3c2d14b2b97/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:25:10,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:25:10,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 23:25:10,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:25:10,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:25:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 23:25:10,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 23:25:10,206 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:25:10,208 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:25:10,332 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:25:10,385 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:25:10,385 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 23:25:10,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:25:10 BoogieIcfgContainer [2023-12-02 23:25:10,387 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:25:10,388 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:25:10,388 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:25:10,396 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:25:10,397 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:25:10" (1/1) ... [2023-12-02 23:25:10,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:25:10,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:25:10,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2023-12-02 23:25:10,448 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2023-12-02 23:25:10,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 23:25:10,452 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:25:10,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:25:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:25:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:25:10,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:25:10,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:25:10,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:25:10,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:25:10,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2023-12-02 23:25:10,623 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-12-02 23:25:10,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 23:25:10,624 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:25:10,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:25:10,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:25:10,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:25:10,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 23:25:10,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:25:10,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:25:10,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:25:10,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2023-12-02 23:25:10,754 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2023-12-02 23:25:10,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 23:25:10,754 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:25:10,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:25:10,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:25:10,787 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 23:25:10,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:25:10,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:25:11,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:25:11,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 29 transitions. [2023-12-02 23:25:11,139 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2023-12-02 23:25:11,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 23:25:11,141 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:25:11,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:25:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:25:11,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 23:25:11,173 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:25:11,204 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:25:11,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:25:11,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 25 states and 39 transitions. [2023-12-02 23:25:11,591 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 39 transitions. [2023-12-02 23:25:11,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 23:25:11,592 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:25:11,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:25:11,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:25:11,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 23:25:11,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:25:16,186 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:25:18,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:25:18,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:25:18,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 31 states and 54 transitions. [2023-12-02 23:25:18,926 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 54 transitions. [2023-12-02 23:25:18,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 23:25:18,927 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:25:18,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:25:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:25:18,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 23:25:18,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:25:19,062 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:25:19,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:25:19,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 39 states and 80 transitions. [2023-12-02 23:25:19,983 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 80 transitions. [2023-12-02 23:25:19,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 23:25:19,984 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:25:19,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:25:20,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:25:20,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 23:25:20,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:25:20,930 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:25:21,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:25:21,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 41 states and 83 transitions. [2023-12-02 23:25:21,504 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 83 transitions. [2023-12-02 23:25:21,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 23:25:21,506 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:25:21,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:25:21,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:25:21,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 23:25:21,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:25:28,714 WARN L293 SmtUtils]: Spent 5.44s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:25:28,904 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:25:30,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:25:30,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 43 states and 91 transitions. [2023-12-02 23:25:30,214 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 91 transitions. [2023-12-02 23:25:30,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 23:25:30,216 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:25:30,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:25:30,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:25:30,298 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-02 23:25:30,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:25:39,738 WARN L293 SmtUtils]: Spent 7.74s on a formula simplification. DAG size of input: 11 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 23:25:56,281 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:26:01,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:26:01,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:26:01,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 47 states and 106 transitions. [2023-12-02 23:26:01,753 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 106 transitions. [2023-12-02 23:26:01,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 23:26:01,754 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:26:01,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:26:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:26:01,780 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 23:26:01,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:26:01,920 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:26:03,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:26:03,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 51 states and 123 transitions. [2023-12-02 23:26:03,533 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 123 transitions. [2023-12-02 23:26:03,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 23:26:03,534 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:26:03,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:26:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:26:03,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-02 23:26:03,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:26:18,341 WARN L293 SmtUtils]: Spent 6.49s on a formula simplification. DAG size of input: 9 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 23:26:18,354 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:26:20,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:26:20,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 53 states and 126 transitions. [2023-12-02 23:26:20,037 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 126 transitions. [2023-12-02 23:26:20,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 23:26:20,038 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:26:20,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:26:20,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:26:20,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-02 23:26:20,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:26:26,082 WARN L293 SmtUtils]: Spent 5.35s on a formula simplification. DAG size of input: 11 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 23:26:32,128 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:26:33,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:26:33,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 55 states and 129 transitions. [2023-12-02 23:26:33,593 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 129 transitions. [2023-12-02 23:26:33,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 23:26:33,594 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:26:33,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:26:33,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:26:33,619 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 23:26:33,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:26:33,644 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:26:35,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:26:35,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 59 states and 147 transitions. [2023-12-02 23:26:35,035 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 147 transitions. [2023-12-02 23:26:35,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-12-02 23:26:35,036 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:26:35,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:26:35,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:26:35,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-02 23:26:35,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:27:01,467 WARN L293 SmtUtils]: Spent 10.50s on a formula simplification that was a NOOP. DAG size: 57 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:27:02,118 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 23:27:25,585 WARN L293 SmtUtils]: Spent 10.66s on a formula simplification that was a NOOP. DAG size: 58 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:27:27,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:27:27,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 61 states and 158 transitions. [2023-12-02 23:27:27,595 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 158 transitions. [2023-12-02 23:27:27,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 23:27:27,596 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:27:27,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:27:27,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:27:27,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-02 23:27:27,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:28:02,810 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 11 proven. 22 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 23:28:14,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 23:28:18,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.38s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:28:18,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:28:18,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 65 states and 178 transitions. [2023-12-02 23:28:18,639 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 178 transitions. [2023-12-02 23:28:18,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 23:28:18,640 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:28:18,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:28:18,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:28:18,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 45 conjunts are in the unsatisfiable core [2023-12-02 23:28:18,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:28:52,424 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:28:58,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:28:58,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 67 states and 181 transitions. [2023-12-02 23:28:58,525 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 181 transitions. [2023-12-02 23:28:58,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 23:28:58,527 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:28:58,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:28:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:28:59,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-02 23:28:59,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:29:17,379 WARN L293 SmtUtils]: Spent 5.12s on a formula simplification. DAG size of input: 12 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 23:29:33,586 WARN L293 SmtUtils]: Spent 7.41s on a formula simplification. DAG size of input: 9 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 23:29:38,392 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 11 proven. 22 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 23:29:44,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:29:44,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 69 states and 184 transitions. [2023-12-02 23:29:44,455 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 184 transitions. [2023-12-02 23:29:44,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 23:29:44,456 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:29:44,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:29:44,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:29:44,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 23:29:44,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:29:44,857 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:29:51,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:29:51,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 77 states and 230 transitions. [2023-12-02 23:29:51,028 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 230 transitions. [2023-12-02 23:29:51,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 23:29:51,029 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:29:51,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:29:51,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:29:51,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-02 23:29:51,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:30:09,617 WARN L293 SmtUtils]: Spent 8.78s on a formula simplification. DAG size of input: 9 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 23:30:24,618 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 11 proven. 22 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 23:30:29,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:30:29,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 79 states and 233 transitions. [2023-12-02 23:30:29,955 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 233 transitions. [2023-12-02 23:30:29,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 23:30:29,956 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:30:29,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:30:29,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:30:29,986 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 23:30:29,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:30:30,014 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:30:31,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:30:31,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 79 states and 232 transitions. [2023-12-02 23:30:31,090 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 232 transitions. [2023-12-02 23:30:31,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 23:30:31,091 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:30:31,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:30:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:30:31,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 23:30:31,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:30:31,156 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:30:32,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:30:32,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 79 states and 231 transitions. [2023-12-02 23:30:32,264 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 231 transitions. [2023-12-02 23:30:32,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-02 23:30:32,265 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:30:32,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:30:32,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:30:32,358 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-02 23:30:32,360 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:31:01,349 WARN L293 SmtUtils]: Spent 10.56s on a formula simplification that was a NOOP. DAG size: 115 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:31:02,527 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-02 23:31:27,913 WARN L293 SmtUtils]: Spent 10.89s on a formula simplification that was a NOOP. DAG size: 116 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:31:32,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:31:32,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 81 states and 245 transitions. [2023-12-02 23:31:32,497 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 245 transitions. [2023-12-02 23:31:32,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 23:31:32,498 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:31:32,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:31:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:31:32,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:31:32,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:31:33,039 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:31:44,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:31:44,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 89 states and 297 transitions. [2023-12-02 23:31:44,693 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 297 transitions. [2023-12-02 23:31:44,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 23:31:44,695 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:31:44,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:31:45,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:31:45,780 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 51 conjunts are in the unsatisfiable core [2023-12-02 23:31:45,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:32:57,195 WARN L293 SmtUtils]: Spent 10.00s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 23:33:03,027 WARN L293 SmtUtils]: Spent 5.83s on a formula simplification. DAG size of input: 8 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 23:33:10,397 WARN L293 SmtUtils]: Spent 7.35s on a formula simplification. DAG size of input: 11 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 23:33:42,345 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 14 proven. 39 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-02 23:34:28,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 23:34:38,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:34:47,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.27s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:34:47,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:34:47,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 93 states and 328 transitions. [2023-12-02 23:34:47,510 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 328 transitions. [2023-12-02 23:34:47,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 23:34:47,511 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:34:47,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:34:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:34:47,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:34:47,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:34:47,584 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:34:50,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:34:50,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 93 states and 327 transitions. [2023-12-02 23:34:50,691 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 327 transitions. [2023-12-02 23:34:50,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 23:34:50,692 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:34:50,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:34:51,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:34:51,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 47 conjunts are in the unsatisfiable core [2023-12-02 23:34:51,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:36:29,446 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 12 proven. 44 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:38:06,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.62s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 23:38:16,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 23:38:25,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.35s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:38:35,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.77s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:38:35,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:38:35,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 112 states and 410 transitions. [2023-12-02 23:38:35,547 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 410 transitions. [2023-12-02 23:38:35,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 23:38:35,548 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:38:35,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:38:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:38:36,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 51 conjunts are in the unsatisfiable core [2023-12-02 23:38:36,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:38:46,404 WARN L293 SmtUtils]: Spent 5.63s on a formula simplification. DAG size of input: 3 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 23:39:31,135 WARN L293 SmtUtils]: Spent 5.37s on a formula simplification. DAG size of input: 9 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 23:40:18,296 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 8 proven. 45 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.