./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound10.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_442f92d9-9e13-497c-9509-848054ad1de2/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442f92d9-9e13-497c-9509-848054ad1de2/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_442f92d9-9e13-497c-9509-848054ad1de2/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442f92d9-9e13-497c-9509-848054ad1de2/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442f92d9-9e13-497c-9509-848054ad1de2/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_442f92d9-9e13-497c-9509-848054ad1de2/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 c6b05ef27bc57afa4e7776361d8c320f2c4d1efbfc422ad92c7a9c3c2e549e04 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:46:39,500 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:46:39,571 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442f92d9-9e13-497c-9509-848054ad1de2/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-02 23:46:39,576 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 23:46:39,577 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 23:46:39,602 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:46:39,603 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 23:46:39,603 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 23:46:39,604 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:46:39,605 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:46:39,605 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:46:39,606 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:46:39,607 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 23:46:39,607 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:46:39,608 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 23:46:39,608 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:46:39,609 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:46:39,609 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:46:39,610 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:46:39,610 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 23:46:39,611 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:46:39,612 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:46:39,612 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:46:39,613 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:46:39,613 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:46:39,614 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:46:39,614 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:46:39,615 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:46:39,615 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:46:39,615 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 23:46:39,616 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 23:46:39,616 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 23:46:39,617 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 23:46:39,617 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_442f92d9-9e13-497c-9509-848054ad1de2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442f92d9-9e13-497c-9509-848054ad1de2/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6b05ef27bc57afa4e7776361d8c320f2c4d1efbfc422ad92c7a9c3c2e549e04 [2023-12-02 23:46:39,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:46:39,877 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:46:39,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:46:39,881 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:46:39,881 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:46:39,882 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442f92d9-9e13-497c-9509-848054ad1de2/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound10.c [2023-12-02 23:46:42,639 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:46:42,844 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:46:42,845 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442f92d9-9e13-497c-9509-848054ad1de2/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound10.c [2023-12-02 23:46:42,856 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442f92d9-9e13-497c-9509-848054ad1de2/bin/ukojak-verify-Qdu7aM0XO9/data/f4dde378d/34014db0f1ec4d1587c9328a89422f19/FLAGffb13d85a [2023-12-02 23:46:42,871 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442f92d9-9e13-497c-9509-848054ad1de2/bin/ukojak-verify-Qdu7aM0XO9/data/f4dde378d/34014db0f1ec4d1587c9328a89422f19 [2023-12-02 23:46:42,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:46:42,875 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:46:42,876 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:46:42,877 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:46:42,881 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:46:42,882 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:46:42" (1/1) ... [2023-12-02 23:46:42,883 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@547ae1b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:46:42, skipping insertion in model container [2023-12-02 23:46:42,884 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:46:42" (1/1) ... [2023-12-02 23:46:42,906 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:46:43,049 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_442f92d9-9e13-497c-9509-848054ad1de2/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound10.c[535,548] [2023-12-02 23:46:43,072 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:46:43,085 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:46:43,097 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_442f92d9-9e13-497c-9509-848054ad1de2/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound10.c[535,548] [2023-12-02 23:46:43,110 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:46:43,125 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:46:43,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:46:43 WrapperNode [2023-12-02 23:46:43,126 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:46:43,127 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:46:43,127 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:46:43,127 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:46:43,134 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:46:43" (1/1) ... [2023-12-02 23:46:43,140 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:46:43" (1/1) ... [2023-12-02 23:46:43,160 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57 [2023-12-02 23:46:43,161 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:46:43,161 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:46:43,161 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:46:43,161 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:46:43,169 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:46:43" (1/1) ... [2023-12-02 23:46:43,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:46:43" (1/1) ... [2023-12-02 23:46:43,171 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:46:43" (1/1) ... [2023-12-02 23:46:43,171 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:46:43" (1/1) ... [2023-12-02 23:46:43,175 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:46:43" (1/1) ... [2023-12-02 23:46:43,180 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:46:43" (1/1) ... [2023-12-02 23:46:43,181 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:46:43" (1/1) ... [2023-12-02 23:46:43,182 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:46:43" (1/1) ... [2023-12-02 23:46:43,184 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:46:43,185 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:46:43,186 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:46:43,186 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:46:43,187 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:46:43" (1/1) ... [2023-12-02 23:46:43,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:46:43,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442f92d9-9e13-497c-9509-848054ad1de2/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:46:43,216 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442f92d9-9e13-497c-9509-848054ad1de2/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:46:43,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442f92d9-9e13-497c-9509-848054ad1de2/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:46:43,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:46:43,256 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 23:46:43,257 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 23:46:43,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 23:46:43,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:46:43,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:46:43,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 23:46:43,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 23:46:43,318 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:46:43,320 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:46:43,476 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:46:43,507 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:46:43,507 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-12-02 23:46:43,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:46:43 BoogieIcfgContainer [2023-12-02 23:46:43,509 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:46:43,510 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:46:43,510 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:46:43,518 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:46:43,519 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:46:43" (1/1) ... [2023-12-02 23:46:43,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:46:43,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:46:43,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2023-12-02 23:46:43,582 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2023-12-02 23:46:43,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-02 23:46:43,586 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:46:43,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:46:43,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:46:43,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 23:46:43,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:46:44,088 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 23:46:45,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 23:46:45,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:46:45,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 31 states and 46 transitions. [2023-12-02 23:46:45,901 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 46 transitions. [2023-12-02 23:46:45,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-02 23:46:45,903 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:46:45,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:46:45,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:46:45,943 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 23:46:45,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:46:46,356 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:46:47,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:46:47,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 35 states and 54 transitions. [2023-12-02 23:46:47,826 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 54 transitions. [2023-12-02 23:46:47,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-02 23:46:47,828 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:46:47,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:46:47,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:46:47,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:46:47,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:46:47,912 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:46:47,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:46:47,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 37 states and 55 transitions. [2023-12-02 23:46:47,956 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 55 transitions. [2023-12-02 23:46:47,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-02 23:46:47,957 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:46:47,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:46:47,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:46:47,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:46:47,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:46:48,075 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-02 23:46:48,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:46:48,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 40 states and 58 transitions. [2023-12-02 23:46:48,145 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 58 transitions. [2023-12-02 23:46:48,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 23:46:48,147 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:46:48,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:46:48,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:46:48,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 23:46:48,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:46:48,269 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 23:46:49,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:46:49,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 46 states and 68 transitions. [2023-12-02 23:46:49,908 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 68 transitions. [2023-12-02 23:46:49,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 23:46:49,910 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:46:49,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:46:49,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:46:49,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-02 23:46:49,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:46:54,464 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-02 23:47:23,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 23:47:24,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:47:24,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 55 states and 89 transitions. [2023-12-02 23:47:24,696 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 89 transitions. [2023-12-02 23:47:24,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-02 23:47:24,698 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:47:24,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:47:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:47:24,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:47:24,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:47:24,768 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-12-02 23:47:47,490 WARN L293 SmtUtils]: Spent 20.19s on a formula simplification. DAG size of input: 33 DAG size of output: 30 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:47:59,447 WARN L293 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:48:00,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:48:00,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 58 states and 91 transitions. [2023-12-02 23:48:00,231 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 91 transitions. [2023-12-02 23:48:00,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-02 23:48:00,233 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:48:00,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:48:00,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:48:00,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-02 23:48:00,282 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:48:08,610 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 23:48:29,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:48:29,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 61 states and 97 transitions. [2023-12-02 23:48:29,558 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 97 transitions. [2023-12-02 23:48:29,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-02 23:48:29,559 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:48:29,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:48:29,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:48:29,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 23:48:29,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:48:30,010 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 23:48:31,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:48:31,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 64 states and 102 transitions. [2023-12-02 23:48:31,327 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 102 transitions. [2023-12-02 23:48:31,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-02 23:48:31,329 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:48:31,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:48:31,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:48:31,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-02 23:48:31,383 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:48:40,676 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 22 proven. 18 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-02 23:49:11,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:49:11,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 67 states and 108 transitions. [2023-12-02 23:49:11,928 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 108 transitions. [2023-12-02 23:49:11,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-02 23:49:11,930 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:49:11,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:49:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:49:11,970 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-02 23:49:11,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:49:23,307 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 25 proven. 12 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 23:50:16,028 WARN L293 SmtUtils]: Spent 7.69s on a formula simplification. DAG size of input: 44 DAG size of output: 42 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:51:03,084 WARN L293 SmtUtils]: Spent 5.31s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:51:04,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-02 23:51:05,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-02 23:51:07,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-02 23:51:24,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-02 23:51:59,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-02 23:52:02,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:52:02,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 82 states and 143 transitions. [2023-12-02 23:52:02,708 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 143 transitions. [2023-12-02 23:52:02,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 23:52:02,710 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:52:02,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:52:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:52:02,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 43 conjunts are in the unsatisfiable core [2023-12-02 23:52:02,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:52:32,799 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 34 proven. 23 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-12-02 23:53:53,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:53:53,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 89 states and 158 transitions. [2023-12-02 23:53:53,717 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 158 transitions. [2023-12-02 23:53:53,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 23:53:53,718 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:53:53,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:53:53,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:53:53,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-02 23:53:53,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:54:03,657 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 51 proven. 10 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-02 23:54:42,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.54s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-02 23:54:43,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:54:43,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 98 states and 177 transitions. [2023-12-02 23:54:43,121 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 177 transitions. [2023-12-02 23:54:43,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-02 23:54:43,123 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:54:43,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:54:43,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:54:43,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 23:54:43,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:54:43,420 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-12-02 23:54:55,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:54:55,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 99 states and 178 transitions. [2023-12-02 23:54:55,069 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 178 transitions. [2023-12-02 23:54:55,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-02 23:54:55,070 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:54:55,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:54:55,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:54:55,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 23:54:55,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:54:55,336 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-12-02 23:55:05,737 WARN L293 SmtUtils]: Spent 10.16s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:55:19,795 WARN L293 SmtUtils]: Spent 10.13s on a formula simplification that was a NOOP. DAG size: 36 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:55:20,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:55:20,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 98 states and 175 transitions. [2023-12-02 23:55:20,370 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 175 transitions. [2023-12-02 23:55:20,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 23:55:20,371 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:55:20,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:55:20,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:55:20,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 23:55:20,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:55:20,589 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 22 proven. 12 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2023-12-02 23:55:52,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:55:52,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 105 states and 192 transitions. [2023-12-02 23:55:52,748 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 192 transitions. [2023-12-02 23:55:52,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 23:55:52,750 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:55:52,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:55:52,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:55:52,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 23:55:52,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:55:52,967 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 22 proven. 12 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2023-12-02 23:56:04,764 WARN L293 SmtUtils]: Spent 10.30s on a formula simplification that was a NOOP. DAG size: 36 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:56:15,907 WARN L293 SmtUtils]: Spent 10.15s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:56:16,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:56:16,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 107 states and 194 transitions. [2023-12-02 23:56:16,230 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 194 transitions. [2023-12-02 23:56:16,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 23:56:16,232 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:56:16,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:56:16,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:56:16,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 23:56:16,270 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:56:18,194 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-12-02 23:56:22,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:56:22,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 113 states and 203 transitions. [2023-12-02 23:56:22,772 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 203 transitions. [2023-12-02 23:56:22,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 23:56:22,774 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:56:22,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:56:22,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:56:22,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-02 23:56:22,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:57:24,987 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 45 proven. 36 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2023-12-02 23:58:09,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-03 00:00:11,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-03 00:00:21,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-03 00:00:26,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.66s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-03 00:01:25,321 WARN L293 SmtUtils]: Spent 10.16s on a formula simplification that was a NOOP. DAG size: 46 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 00:01:50,893 WARN L293 SmtUtils]: Spent 10.14s on a formula simplification that was a NOOP. DAG size: 47 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 00:01:52,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-03 00:01:54,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-03 00:01:58,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]