./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6717ad0d-a682-4a0f-bc28-c1ab1fb4fad7/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6717ad0d-a682-4a0f-bc28-c1ab1fb4fad7/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6717ad0d-a682-4a0f-bc28-c1ab1fb4fad7/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6717ad0d-a682-4a0f-bc28-c1ab1fb4fad7/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound5.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6717ad0d-a682-4a0f-bc28-c1ab1fb4fad7/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6717ad0d-a682-4a0f-bc28-c1ab1fb4fad7/bin/ukojak --witnessprinter.witness.filename witness.graphml --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 d66b6d836c479d7c0f327f787d838669567676b3 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 17:27:11,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 17:27:11,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 17:27:11,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 17:27:11,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 17:27:11,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 17:27:11,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 17:27:11,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 17:27:11,758 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 17:27:11,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 17:27:11,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 17:27:11,769 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 17:27:11,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 17:27:11,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 17:27:11,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 17:27:11,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 17:27:11,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 17:27:11,786 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 17:27:11,790 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 17:27:11,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 17:27:11,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 17:27:11,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 17:27:11,807 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 17:27:11,809 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 17:27:11,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 17:27:11,821 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 17:27:11,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 17:27:11,824 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 17:27:11,825 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 17:27:11,826 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 17:27:11,827 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 17:27:11,829 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 17:27:11,831 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 17:27:11,833 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 17:27:11,834 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 17:27:11,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 17:27:11,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 17:27:11,836 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 17:27:11,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 17:27:11,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 17:27:11,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 17:27:11,841 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6717ad0d-a682-4a0f-bc28-c1ab1fb4fad7/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 17:27:11,884 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 17:27:11,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 17:27:11,887 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 17:27:11,887 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 17:27:11,888 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 17:27:11,888 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 17:27:11,889 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 17:27:11,889 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 17:27:11,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 17:27:11,890 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 17:27:11,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 17:27:11,892 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 17:27:11,892 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 17:27:11,892 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 17:27:11,893 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 17:27:11,893 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 17:27:11,893 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 17:27:11,894 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 17:27:11,894 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 17:27:11,894 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 17:27:11,895 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 17:27:11,895 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 17:27:11,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:27:11,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 17:27:11,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 17:27:11,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 17:27:11,897 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 17:27:11,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 17:27:11,898 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 17:27:11,898 INFO L138 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-vcloud-master/worker/run_dir_6717ad0d-a682-4a0f-bc28-c1ab1fb4fad7/bin/ukojak/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6717ad0d-a682-4a0f-bc28-c1ab1fb4fad7/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d66b6d836c479d7c0f327f787d838669567676b3 [2020-12-01 17:27:12,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 17:27:12,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 17:27:12,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 17:27:12,196 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 17:27:12,197 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 17:27:12,198 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6717ad0d-a682-4a0f-bc28-c1ab1fb4fad7/bin/ukojak/../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound5.c [2020-12-01 17:27:12,277 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6717ad0d-a682-4a0f-bc28-c1ab1fb4fad7/bin/ukojak/data/2b0e63d59/86456f7148124815abe5aa964bd2fb7a/FLAG889043f49 [2020-12-01 17:27:12,832 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 17:27:12,832 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6717ad0d-a682-4a0f-bc28-c1ab1fb4fad7/sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound5.c [2020-12-01 17:27:12,838 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6717ad0d-a682-4a0f-bc28-c1ab1fb4fad7/bin/ukojak/data/2b0e63d59/86456f7148124815abe5aa964bd2fb7a/FLAG889043f49 [2020-12-01 17:27:13,220 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6717ad0d-a682-4a0f-bc28-c1ab1fb4fad7/bin/ukojak/data/2b0e63d59/86456f7148124815abe5aa964bd2fb7a [2020-12-01 17:27:13,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 17:27:13,228 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 17:27:13,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 17:27:13,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 17:27:13,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 17:27:13,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:27:13" (1/1) ... [2020-12-01 17:27:13,242 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70059d69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:27:13, skipping insertion in model container [2020-12-01 17:27:13,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:27:13" (1/1) ... [2020-12-01 17:27:13,249 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 17:27:13,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 17:27:13,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:27:13,460 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 17:27:13,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:27:13,506 INFO L208 MainTranslator]: Completed translation [2020-12-01 17:27:13,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:27:13 WrapperNode [2020-12-01 17:27:13,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 17:27:13,509 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 17:27:13,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 17:27:13,510 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 17:27:13,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:27:13" (1/1) ... [2020-12-01 17:27:13,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:27:13" (1/1) ... [2020-12-01 17:27:13,546 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 17:27:13,546 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 17:27:13,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 17:27:13,547 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 17:27:13,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:27:13" (1/1) ... [2020-12-01 17:27:13,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:27:13" (1/1) ... [2020-12-01 17:27:13,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:27:13" (1/1) ... [2020-12-01 17:27:13,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:27:13" (1/1) ... [2020-12-01 17:27:13,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:27:13" (1/1) ... [2020-12-01 17:27:13,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:27:13" (1/1) ... [2020-12-01 17:27:13,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:27:13" (1/1) ... [2020-12-01 17:27:13,569 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 17:27:13,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 17:27:13,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 17:27:13,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 17:27:13,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:27:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6717ad0d-a682-4a0f-bc28-c1ab1fb4fad7/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:27:13,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 17:27:13,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 17:27:13,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 17:27:13,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 17:27:13,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-12-01 17:27:13,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-12-01 17:27:13,935 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 17:27:13,935 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-01 17:27:13,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:27:13 BoogieIcfgContainer [2020-12-01 17:27:13,937 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 17:27:13,938 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 17:27:13,939 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 17:27:13,949 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 17:27:13,949 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:27:13" (1/1) ... [2020-12-01 17:27:13,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 17:27:14,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:14,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2020-12-01 17:27:14,017 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2020-12-01 17:27:14,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 17:27:14,036 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:14,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:27:14,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:14,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2020-12-01 17:27:14,267 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2020-12-01 17:27:14,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 17:27:14,268 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:14,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:14,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:27:14,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:14,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 27 states and 43 transitions. [2020-12-01 17:27:14,543 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 43 transitions. [2020-12-01 17:27:14,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 17:27:14,545 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:14,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:14,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:27:14,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:14,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 29 states and 46 transitions. [2020-12-01 17:27:14,786 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 46 transitions. [2020-12-01 17:27:14,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 17:27:14,787 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:14,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:14,851 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:27:15,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:15,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 33 states and 52 transitions. [2020-12-01 17:27:15,145 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 52 transitions. [2020-12-01 17:27:15,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 17:27:15,146 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:15,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 21 conjunts are in the unsatisfiable core [2020-12-01 17:27:15,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:27:15,463 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 17:27:16,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:16,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 38 states and 61 transitions. [2020-12-01 17:27:16,761 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2020-12-01 17:27:16,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-01 17:27:16,764 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:16,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-01 17:27:16,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:27:16,950 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-01 17:27:17,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:17,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 42 states and 72 transitions. [2020-12-01 17:27:17,316 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 72 transitions. [2020-12-01 17:27:17,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-01 17:27:17,318 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:17,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:17,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 17:27:17,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:27:17,588 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-01 17:27:19,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:19,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 52 states and 107 transitions. [2020-12-01 17:27:19,179 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 107 transitions. [2020-12-01 17:27:19,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-01 17:27:19,181 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:19,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:19,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 17:27:19,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:27:19,310 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-01 17:27:19,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:19,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 54 states and 113 transitions. [2020-12-01 17:27:19,746 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 113 transitions. [2020-12-01 17:27:19,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-01 17:27:19,748 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:19,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:19,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 17:27:19,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:27:19,877 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-01 17:27:20,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:20,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 58 states and 124 transitions. [2020-12-01 17:27:20,675 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 124 transitions. [2020-12-01 17:27:20,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-01 17:27:20,677 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:20,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:20,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-01 17:27:20,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:27:20,738 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-12-01 17:27:21,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:21,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 60 states and 126 transitions. [2020-12-01 17:27:21,201 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 126 transitions. [2020-12-01 17:27:21,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-01 17:27:21,203 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:21,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:21,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 27 conjunts are in the unsatisfiable core [2020-12-01 17:27:21,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:27:21,489 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 18 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-12-01 17:27:23,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:23,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 66 states and 147 transitions. [2020-12-01 17:27:23,922 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 147 transitions. [2020-12-01 17:27:23,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-01 17:27:23,924 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:23,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:23,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 31 conjunts are in the unsatisfiable core [2020-12-01 17:27:23,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:27:24,168 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 20 proven. 13 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-12-01 17:27:24,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:24,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 68 states and 148 transitions. [2020-12-01 17:27:24,931 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 148 transitions. [2020-12-01 17:27:24,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-01 17:27:24,932 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:24,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:24,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-01 17:27:24,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:27:25,030 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-12-01 17:27:25,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:25,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 71 states and 164 transitions. [2020-12-01 17:27:25,410 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 164 transitions. [2020-12-01 17:27:25,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-01 17:27:25,412 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:25,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 17:27:25,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:27:25,551 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-12-01 17:27:26,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:26,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 76 states and 180 transitions. [2020-12-01 17:27:26,727 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 180 transitions. [2020-12-01 17:27:26,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-01 17:27:26,729 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:26,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:26,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 17:27:26,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:27:26,866 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-12-01 17:27:27,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:27,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 78 states and 188 transitions. [2020-12-01 17:27:27,421 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 188 transitions. [2020-12-01 17:27:27,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-01 17:27:27,422 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:27,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:27,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-01 17:27:27,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:27:27,541 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 20 proven. 7 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2020-12-01 17:27:27,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:27,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 78 states and 186 transitions. [2020-12-01 17:27:27,926 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 186 transitions. [2020-12-01 17:27:27,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-01 17:27:27,931 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:27,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:27,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-01 17:27:27,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:27:28,182 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 12 proven. 46 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-12-01 17:27:30,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:30,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 88 states and 248 transitions. [2020-12-01 17:27:30,609 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 248 transitions. [2020-12-01 17:27:30,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-01 17:27:30,612 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:30,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:30,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-01 17:27:30,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:27:30,707 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 12 proven. 46 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-12-01 17:27:31,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:31,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 88 states and 247 transitions. [2020-12-01 17:27:31,031 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 247 transitions. [2020-12-01 17:27:31,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-01 17:27:31,032 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:31,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:31,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 17:27:31,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:27:31,115 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 29 proven. 4 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-12-01 17:27:32,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:32,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 90 states and 254 transitions. [2020-12-01 17:27:32,364 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 254 transitions. [2020-12-01 17:27:32,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-01 17:27:32,365 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:32,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-01 17:27:32,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:27:32,589 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 36 proven. 42 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-12-01 17:27:33,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:33,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 92 states and 260 transitions. [2020-12-01 17:27:33,327 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 260 transitions. [2020-12-01 17:27:33,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-01 17:27:33,329 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:33,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-01 17:27:33,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:27:33,431 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-12-01 17:27:34,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:34,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 94 states and 262 transitions. [2020-12-01 17:27:34,141 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 262 transitions. [2020-12-01 17:27:34,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-01 17:27:34,143 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:34,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 31 conjunts are in the unsatisfiable core [2020-12-01 17:27:34,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:27:34,387 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 24 proven. 29 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-12-01 17:27:37,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:37,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 100 states and 290 transitions. [2020-12-01 17:27:37,479 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 290 transitions. [2020-12-01 17:27:37,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-01 17:27:37,481 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:37,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:37,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 31 conjunts are in the unsatisfiable core [2020-12-01 17:27:37,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:27:37,661 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 24 proven. 29 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-12-01 17:27:39,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:39,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 103 states and 294 transitions. [2020-12-01 17:27:39,515 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 294 transitions. [2020-12-01 17:27:39,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-01 17:27:39,517 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:39,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:39,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 31 conjunts are in the unsatisfiable core [2020-12-01 17:27:39,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:27:39,666 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 24 proven. 29 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-12-01 17:27:40,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:40,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 105 states and 295 transitions. [2020-12-01 17:27:40,956 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 295 transitions. [2020-12-01 17:27:40,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-01 17:27:40,958 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:41,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:41,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 34 conjunts are in the unsatisfiable core [2020-12-01 17:27:41,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:27:41,698 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 24 proven. 22 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-12-01 17:27:48,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:48,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 117 states and 347 transitions. [2020-12-01 17:27:48,669 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 347 transitions. [2020-12-01 17:27:48,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-01 17:27:48,671 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:48,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:48,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-01 17:27:48,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:27:49,124 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 16 proven. 92 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-12-01 17:27:52,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:52,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 122 states and 360 transitions. [2020-12-01 17:27:52,109 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 360 transitions. [2020-12-01 17:27:52,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-01 17:27:52,111 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:52,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-01 17:27:52,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:27:52,322 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 16 proven. 92 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-12-01 17:27:54,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:54,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 126 states and 419 transitions. [2020-12-01 17:27:54,416 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 419 transitions. [2020-12-01 17:27:54,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-01 17:27:54,418 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:54,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:54,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 33 conjunts are in the unsatisfiable core [2020-12-01 17:27:54,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:27:54,754 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 24 proven. 22 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-12-01 17:28:01,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:28:01,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 135 states and 462 transitions. [2020-12-01 17:28:01,662 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 462 transitions. [2020-12-01 17:28:01,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-01 17:28:01,663 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:28:01,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:28:01,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-01 17:28:01,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:28:01,773 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 16 proven. 92 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-12-01 17:28:03,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:28:03,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 140 states and 471 transitions. [2020-12-01 17:28:03,609 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 471 transitions. [2020-12-01 17:28:03,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-12-01 17:28:03,611 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:28:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:28:03,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 34 conjunts are in the unsatisfiable core [2020-12-01 17:28:03,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:28:04,323 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 17:28:04,398 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 26 proven. 26 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-12-01 17:28:07,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:28:07,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 143 states and 485 transitions. [2020-12-01 17:28:07,360 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 485 transitions. [2020-12-01 17:28:07,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-12-01 17:28:07,362 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:28:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:28:07,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-01 17:28:07,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:28:07,484 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 26 proven. 16 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2020-12-01 17:28:08,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:28:08,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 143 states and 481 transitions. [2020-12-01 17:28:08,184 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 481 transitions. [2020-12-01 17:28:08,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-12-01 17:28:08,186 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:28:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:28:08,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 34 conjunts are in the unsatisfiable core [2020-12-01 17:28:08,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:28:08,321 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 17:28:08,402 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 26 proven. 26 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-12-01 17:28:08,735 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 21 [2020-12-01 17:28:12,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:28:12,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 148 states and 496 transitions. [2020-12-01 17:28:12,062 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 496 transitions. [2020-12-01 17:28:12,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-01 17:28:12,064 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:28:12,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:28:12,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-01 17:28:12,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:28:12,439 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 18 proven. 132 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-12-01 17:28:16,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:28:16,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 154 states and 513 transitions. [2020-12-01 17:28:16,234 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 513 transitions. [2020-12-01 17:28:16,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-01 17:28:16,236 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:28:16,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:28:16,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-01 17:28:16,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:28:16,353 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 18 proven. 132 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-12-01 17:28:17,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:28:17,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 154 states and 512 transitions. [2020-12-01 17:28:17,075 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 512 transitions. [2020-12-01 17:28:17,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-01 17:28:17,077 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:28:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:28:17,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-01 17:28:17,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:28:17,203 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 18 proven. 132 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-12-01 17:28:18,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:28:18,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 154 states and 511 transitions. [2020-12-01 17:28:18,030 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 511 transitions. [2020-12-01 17:28:18,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-01 17:28:18,032 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:28:18,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:28:18,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 17:28:18,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:28:18,202 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 45 proven. 4 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2020-12-01 17:28:19,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:28:19,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 154 states and 510 transitions. [2020-12-01 17:28:19,263 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 510 transitions. [2020-12-01 17:28:19,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-01 17:28:19,265 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:28:19,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:28:19,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-01 17:28:19,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:28:19,384 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 54 proven. 126 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-12-01 17:28:21,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:28:21,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 156 states and 520 transitions. [2020-12-01 17:28:21,328 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 520 transitions. [2020-12-01 17:28:21,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-01 17:28:21,330 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:28:21,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:28:21,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-01 17:28:21,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:28:21,444 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2020-12-01 17:28:22,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:28:22,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 158 states and 522 transitions. [2020-12-01 17:28:22,993 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 522 transitions. [2020-12-01 17:28:22,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-01 17:28:22,995 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:28:23,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:28:23,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 35 conjunts are in the unsatisfiable core [2020-12-01 17:28:23,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:28:24,842 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 28 proven. 30 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2020-12-01 17:28:28,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:28:28,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 161 states and 546 transitions. [2020-12-01 17:28:28,856 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 546 transitions. [2020-12-01 17:28:28,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-12-01 17:28:28,859 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:28:28,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:28:28,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 35 conjunts are in the unsatisfiable core [2020-12-01 17:28:28,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:28:29,508 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2020-12-01 17:28:38,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:28:38,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 167 states and 583 transitions. [2020-12-01 17:28:38,552 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 583 transitions. [2020-12-01 17:28:38,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-12-01 17:28:38,554 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:28:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:28:38,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 35 conjunts are in the unsatisfiable core [2020-12-01 17:28:38,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:28:38,731 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2020-12-01 17:28:41,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:28:41,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 169 states and 584 transitions. [2020-12-01 17:28:41,337 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 584 transitions. [2020-12-01 17:28:41,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-12-01 17:28:41,339 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:28:41,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:28:41,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 35 conjunts are in the unsatisfiable core [2020-12-01 17:28:41,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:28:41,501 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2020-12-01 17:28:45,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:28:45,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 172 states and 587 transitions. [2020-12-01 17:28:45,461 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 587 transitions. [2020-12-01 17:28:45,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-12-01 17:28:45,463 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:28:45,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:28:45,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 35 conjunts are in the unsatisfiable core [2020-12-01 17:28:45,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:28:45,655 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2020-12-01 17:28:49,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:28:49,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 175 states and 590 transitions. [2020-12-01 17:28:49,203 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 590 transitions. [2020-12-01 17:28:49,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-12-01 17:28:49,204 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:28:49,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:28:49,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 33 conjunts are in the unsatisfiable core [2020-12-01 17:28:49,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:28:49,888 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 30 proven. 33 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2020-12-01 17:28:52,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:28:52,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 176 states and 594 transitions. [2020-12-01 17:28:52,625 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 594 transitions. [2020-12-01 17:28:52,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-01 17:28:52,627 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:28:52,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:28:52,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 17:28:52,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:28:53,720 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 22 proven. 200 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-12-01 17:29:05,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:29:05,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 181 states and 611 transitions. [2020-12-01 17:29:05,728 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 611 transitions. [2020-12-01 17:29:05,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-01 17:29:05,729 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:29:05,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:29:05,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 17:29:05,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:29:05,921 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 22 proven. 200 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-12-01 17:29:10,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:29:10,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 188 states and 695 transitions. [2020-12-01 17:29:10,998 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 695 transitions. [2020-12-01 17:29:10,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-01 17:29:10,999 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:29:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:29:11,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 17:29:11,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:29:11,194 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 22 proven. 200 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-12-01 17:29:17,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:29:17,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 190 states and 698 transitions. [2020-12-01 17:29:17,152 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 698 transitions. [2020-12-01 17:29:17,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-01 17:29:17,153 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:29:17,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:29:17,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 37 conjunts are in the unsatisfiable core [2020-12-01 17:29:17,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:29:18,546 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 30 proven. 43 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2020-12-01 17:29:26,015 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 31 [2020-12-01 17:29:27,844 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2020-12-01 17:29:32,648 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 30 [2020-12-01 17:29:34,442 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 30 [2020-12-01 17:29:37,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:29:37,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 202 states and 769 transitions. [2020-12-01 17:29:37,712 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 769 transitions. [2020-12-01 17:29:37,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-01 17:29:37,715 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:29:37,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:29:37,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 17:29:37,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:29:37,949 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 22 proven. 200 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-12-01 17:29:40,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:29:40,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 204 states and 773 transitions. [2020-12-01 17:29:40,987 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 773 transitions. [2020-12-01 17:29:40,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-01 17:29:40,989 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:29:41,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:29:41,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 17:29:41,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:29:41,245 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 22 proven. 200 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-12-01 17:29:43,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:29:43,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 207 states and 774 transitions. [2020-12-01 17:29:43,274 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 774 transitions. [2020-12-01 17:29:43,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-01 17:29:43,275 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:29:43,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:29:43,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 37 conjunts are in the unsatisfiable core [2020-12-01 17:29:43,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:29:43,563 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 30 proven. 43 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2020-12-01 17:29:51,414 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 28 [2020-12-01 17:29:53,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:29:53,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 210 states and 778 transitions. [2020-12-01 17:29:53,519 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 778 transitions. [2020-12-01 17:29:53,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-01 17:29:53,521 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:29:53,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:29:53,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 37 conjunts are in the unsatisfiable core [2020-12-01 17:29:53,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:29:53,843 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 30 proven. 43 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2020-12-01 17:29:56,185 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 29 [2020-12-01 17:29:58,101 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 32 [2020-12-01 17:29:59,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:29:59,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 213 states and 783 transitions. [2020-12-01 17:29:59,961 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 783 transitions. [2020-12-01 17:29:59,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-01 17:29:59,963 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:30:00,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:30:00,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 37 conjunts are in the unsatisfiable core [2020-12-01 17:30:00,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:30:00,280 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 30 proven. 43 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2020-12-01 17:30:02,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:30:02,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 213 states and 782 transitions. [2020-12-01 17:30:02,188 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 782 transitions. [2020-12-01 17:30:02,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-01 17:30:02,191 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:30:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:30:02,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 35 conjunts are in the unsatisfiable core [2020-12-01 17:30:02,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:30:02,466 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 32 proven. 47 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2020-12-01 17:30:08,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:30:08,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 216 states and 797 transitions. [2020-12-01 17:30:08,227 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 797 transitions. [2020-12-01 17:30:08,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-01 17:30:08,230 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:30:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:30:08,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 17:30:08,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:30:08,504 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 24 proven. 252 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-12-01 17:30:18,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:30:18,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 220 states and 804 transitions. [2020-12-01 17:30:18,656 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 804 transitions. [2020-12-01 17:30:18,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-01 17:30:18,658 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:30:18,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:30:18,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-01 17:30:18,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:30:18,912 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 32 proven. 25 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2020-12-01 17:30:20,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:30:21,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 220 states and 800 transitions. [2020-12-01 17:30:21,001 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 800 transitions. [2020-12-01 17:30:21,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-01 17:30:21,002 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:30:21,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:30:21,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 17:30:21,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:30:21,246 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 24 proven. 252 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-12-01 17:30:23,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:30:23,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 220 states and 799 transitions. [2020-12-01 17:30:23,376 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 799 transitions. [2020-12-01 17:30:23,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-01 17:30:23,378 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:30:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:30:23,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 17:30:23,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:30:23,647 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 24 proven. 252 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-12-01 17:30:25,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:30:25,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 220 states and 798 transitions. [2020-12-01 17:30:25,570 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 798 transitions. [2020-12-01 17:30:25,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-01 17:30:25,571 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:30:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:30:25,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 17:30:25,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:30:25,754 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 24 proven. 252 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-12-01 17:30:27,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:30:27,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 220 states and 797 transitions. [2020-12-01 17:30:27,552 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 797 transitions. [2020-12-01 17:30:27,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-01 17:30:27,554 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:30:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:30:27,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 17:30:27,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:30:28,625 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 24 proven. 260 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-12-01 17:30:35,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:30:35,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 223 states and 801 transitions. [2020-12-01 17:30:35,988 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 801 transitions. [2020-12-01 17:30:35,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-01 17:30:35,990 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:30:36,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:30:36,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 17:30:36,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:30:36,200 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 61 proven. 4 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2020-12-01 17:30:39,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:30:39,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 223 states and 800 transitions. [2020-12-01 17:30:39,462 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 800 transitions. [2020-12-01 17:30:39,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-01 17:30:39,464 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:30:39,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:30:39,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 17:30:39,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:30:39,743 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 72 proven. 252 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-12-01 17:30:46,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:30:46,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 225 states and 803 transitions. [2020-12-01 17:30:46,045 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 803 transitions. [2020-12-01 17:30:46,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-01 17:30:46,047 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:30:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:30:46,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-01 17:30:46,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:30:46,245 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2020-12-01 17:30:50,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:30:50,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 227 states and 805 transitions. [2020-12-01 17:30:50,123 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 805 transitions. [2020-12-01 17:30:50,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-12-01 17:30:50,124 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:30:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:30:50,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 17:30:50,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:30:53,159 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 17:30:53,161 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 17:30:53,166 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 17:30:53,170 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 17:30:53,174 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-01 17:30:53,178 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 17:30:53,187 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-01 17:30:53,190 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-01 17:30:54,251 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 44 proven. 5 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-12-01 17:31:05,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:31:05,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 229 states and 851 transitions. [2020-12-01 17:31:05,007 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 851 transitions. [2020-12-01 17:31:05,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-12-01 17:31:05,010 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:31:05,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:31:05,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 42 conjunts are in the unsatisfiable core [2020-12-01 17:31:05,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:31:08,310 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 14 [2020-12-01 17:31:09,463 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-01 17:31:09,463 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 17:31:09,465 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 17:31:09,497 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 34 proven. 55 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2020-12-01 17:31:12,946 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 25 [2020-12-01 17:31:18,205 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-12-01 17:31:19,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:31:19,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 232 states and 882 transitions. [2020-12-01 17:31:19,902 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 882 transitions. [2020-12-01 17:31:19,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-12-01 17:31:19,904 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:31:19,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:31:19,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 43 conjunts are in the unsatisfiable core [2020-12-01 17:31:19,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:31:22,921 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 16 [2020-12-01 17:31:24,029 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-01 17:31:24,029 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 17:31:24,030 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 17:31:24,068 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 34 proven. 55 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2020-12-01 17:31:24,597 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 23 [2020-12-01 17:31:26,129 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2020-12-01 17:31:29,204 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 26 [2020-12-01 17:31:32,492 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 21 [2020-12-01 17:31:36,758 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 21 [2020-12-01 17:31:39,212 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 21 [2020-12-01 17:31:41,991 WARN L197 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 19 [2020-12-01 17:31:45,860 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 22 [2020-12-01 17:31:47,444 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 22 [2020-12-01 17:31:50,173 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 22 [2020-12-01 17:31:52,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:31:52,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 244 states and 936 transitions. [2020-12-01 17:31:52,543 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 936 transitions. [2020-12-01 17:31:52,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-12-01 17:31:52,544 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:31:52,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:31:52,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-01 17:31:52,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:31:53,885 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 321 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-12-01 17:32:33,491 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2020-12-01 17:32:35,252 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-12-01 17:32:37,106 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-12-01 17:32:38,725 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2020-12-01 17:32:40,641 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-12-01 17:32:42,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:32:42,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1164 states to 270 states and 1095 transitions. [2020-12-01 17:32:42,688 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 1095 transitions. [2020-12-01 17:32:42,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-12-01 17:32:42,690 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:32:42,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:32:42,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 43 conjunts are in the unsatisfiable core [2020-12-01 17:32:42,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:32:43,142 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-01 17:32:43,142 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 17:32:43,143 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 17:32:43,174 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 34 proven. 55 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2020-12-01 17:32:43,888 WARN L197 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 31 [2020-12-01 17:32:44,382 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-12-01 17:32:47,328 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-12-01 17:32:48,081 WARN L197 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 31 [2020-12-01 17:32:48,729 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-12-01 17:32:50,234 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-12-01 17:32:52,154 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-12-01 17:32:52,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:32:52,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1170 states to 272 states and 1101 transitions. [2020-12-01 17:32:52,246 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 1101 transitions. [2020-12-01 17:32:52,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-12-01 17:32:52,247 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:32:52,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:32:52,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-01 17:32:52,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:32:52,639 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 321 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-12-01 17:32:53,621 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2020-12-01 17:32:57,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:32:57,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 272 states and 1100 transitions. [2020-12-01 17:32:57,334 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 1100 transitions. [2020-12-01 17:32:57,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-12-01 17:32:57,336 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:32:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:32:57,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 39 conjunts are in the unsatisfiable core [2020-12-01 17:32:57,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:32:59,307 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 36 proven. 87 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2020-12-01 17:33:00,467 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2020-12-01 17:33:06,342 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-12-01 17:33:09,535 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-12-01 17:33:10,842 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-12-01 17:33:14,076 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-12-01 17:33:16,023 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-12-01 17:33:19,531 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-12-01 17:33:21,612 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-12-01 17:33:25,613 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-12-01 17:33:27,750 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-12-01 17:33:30,927 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-12-01 17:33:31,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:33:31,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 278 states and 1151 transitions. [2020-12-01 17:33:31,361 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 1151 transitions. [2020-12-01 17:33:31,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-12-01 17:33:31,363 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:33:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:33:31,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 39 conjunts are in the unsatisfiable core [2020-12-01 17:33:31,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:33:31,834 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 36 proven. 87 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2020-12-01 17:33:32,974 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2020-12-01 17:33:42,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:33:42,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 281 states and 1154 transitions. [2020-12-01 17:33:42,799 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 1154 transitions. [2020-12-01 17:33:42,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-12-01 17:33:42,801 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:33:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:33:42,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 39 conjunts are in the unsatisfiable core [2020-12-01 17:33:42,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:33:43,143 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 36 proven. 87 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2020-12-01 17:33:44,083 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2020-12-01 17:33:54,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:33:54,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 284 states and 1157 transitions. [2020-12-01 17:33:54,457 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 1157 transitions. [2020-12-01 17:33:54,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-12-01 17:33:54,459 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:33:54,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:33:54,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 39 conjunts are in the unsatisfiable core [2020-12-01 17:33:54,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:33:54,862 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 36 proven. 87 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2020-12-01 17:33:55,388 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 20 [2020-12-01 17:33:56,048 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-12-01 17:33:59,522 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-12-01 17:34:00,782 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-12-01 17:34:04,324 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-12-01 17:34:04,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:34:04,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 286 states and 1158 transitions. [2020-12-01 17:34:04,463 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 1158 transitions. [2020-12-01 17:34:04,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-12-01 17:34:04,465 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:34:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:34:04,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 39 conjunts are in the unsatisfiable core [2020-12-01 17:34:04,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:34:04,857 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 36 proven. 87 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2020-12-01 17:34:06,133 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2020-12-01 17:34:18,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:34:18,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 289 states and 1161 transitions. [2020-12-01 17:34:18,303 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 1161 transitions. [2020-12-01 17:34:18,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-12-01 17:34:18,305 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:34:18,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:34:18,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 28 conjunts are in the unsatisfiable core [2020-12-01 17:34:18,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:34:28,588 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 36 proven. 58 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2020-12-01 17:34:37,577 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 21 [2020-12-01 17:34:42,222 WARN L197 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 24 [2020-12-01 17:34:43,016 WARN L197 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 25 [2020-12-01 17:34:47,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:34:47,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1239 states to 290 states and 1170 transitions. [2020-12-01 17:34:47,357 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 1170 transitions. [2020-12-01 17:34:47,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-12-01 17:34:47,359 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:34:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:34:47,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 28 conjunts are in the unsatisfiable core [2020-12-01 17:34:47,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:34:47,797 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 36 proven. 58 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2020-12-01 17:34:48,740 WARN L197 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 21 [2020-12-01 17:34:49,716 WARN L197 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 29 [2020-12-01 17:34:53,596 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-12-01 17:34:54,547 WARN L197 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 21 [2020-12-01 17:34:55,330 WARN L197 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 29 [2020-12-01 17:34:59,187 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-12-01 17:34:59,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:34:59,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 292 states and 1175 transitions. [2020-12-01 17:34:59,250 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 1175 transitions. [2020-12-01 17:34:59,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-12-01 17:34:59,252 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:34:59,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:34:59,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-01 17:34:59,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:34:59,756 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 378 proven. 1 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-12-01 17:35:05,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:35:05,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1248 states to 295 states and 1179 transitions. [2020-12-01 17:35:05,653 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 1179 transitions. [2020-12-01 17:35:05,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-12-01 17:35:05,655 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:35:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:35:05,732 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:35:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:35:05,785 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:35:09,859 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 78 iterations. [2020-12-01 17:35:09,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:35:09 ImpRootNode [2020-12-01 17:35:09,993 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 17:35:09,994 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 17:35:09,994 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 17:35:09,994 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 17:35:09,995 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:27:13" (3/4) ... [2020-12-01 17:35:09,998 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 17:35:10,135 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6717ad0d-a682-4a0f-bc28-c1ab1fb4fad7/bin/ukojak/witness.graphml [2020-12-01 17:35:10,135 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 17:35:10,136 INFO L168 Benchmark]: Toolchain (without parser) took 476908.17 ms. Allocated memory was 92.3 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 62.1 MB in the beginning and 450.2 MB in the end (delta: -388.1 MB). Peak memory consumption was 777.5 MB. Max. memory is 16.1 GB. [2020-12-01 17:35:10,137 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 92.3 MB. Free memory was 52.6 MB in the beginning and 52.5 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:35:10,138 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.05 ms. Allocated memory is still 92.3 MB. Free memory was 61.9 MB in the beginning and 69.6 MB in the end (delta: -7.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 17:35:10,138 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.66 ms. Allocated memory is still 92.3 MB. Free memory was 69.6 MB in the beginning and 68.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:35:10,139 INFO L168 Benchmark]: Boogie Preprocessor took 22.98 ms. Allocated memory is still 92.3 MB. Free memory was 68.3 MB in the beginning and 67.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:35:10,139 INFO L168 Benchmark]: RCFGBuilder took 367.33 ms. Allocated memory is still 92.3 MB. Free memory was 67.0 MB in the beginning and 50.3 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-01 17:35:10,140 INFO L168 Benchmark]: CodeCheck took 476054.76 ms. Allocated memory was 92.3 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 50.3 MB in the beginning and 455.4 MB in the end (delta: -405.1 MB). Peak memory consumption was 763.8 MB. Max. memory is 16.1 GB. [2020-12-01 17:35:10,145 INFO L168 Benchmark]: Witness Printer took 141.51 ms. Allocated memory is still 1.3 GB. Free memory was 455.4 MB in the beginning and 450.2 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 17:35:10,150 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 475.8s, OverallIterations: 78, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, -250199568 SDslu, 33605640 SDs, 0 SdLazy, -1829245262 SolverSat, -2005162802 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 339.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70887 GetRequests, 67625 SyntacticMatches, 2234 SemanticMatches, 1028 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569557 ImplicationChecksByTransitivity, 435.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.8s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 44.8s InterpolantComputationTime, 4889 NumberOfCodeBlocks, 4889 NumberOfCodeBlocksAsserted, 78 NumberOfCheckSat, 4720 ConstructedInterpolants, 0 QuantifiedInterpolants, 1383147 SizeOfPredicates, 259 NumberOfNonLiveVariables, 12871 ConjunctsInSsa, 1520 ConjunctsInUnsatCore, 77 InterpolantComputations, 11 PerfectInterpolantSequences, 11893/16868 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 8]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L22] int counter = 0; [L24] int A, B; [L25] int r, d, p, q; [L26] A = __VERIFIER_nondet_int() [L27] B = 1 [L29] r = A [L30] d = B [L31] p = 1 [L32] q = 0 VAL [counter=0] [L34] EXPR counter++ VAL [counter=1] [L34] COND TRUE counter++<5 [L35] CALL __VERIFIER_assert(q == 0) VAL [counter=1] [L15] COND FALSE !(!(cond)) VAL [counter=1] [L35] RET __VERIFIER_assert(q == 0) VAL [counter=1] [L36] CALL __VERIFIER_assert(r == A) VAL [counter=1] [L15] COND FALSE !(!(cond)) VAL [counter=1] [L36] RET __VERIFIER_assert(r == A) VAL [counter=1] [L37] CALL __VERIFIER_assert(d == B * p) VAL [counter=1] [L15] COND FALSE !(!(cond)) VAL [counter=1] [L37] RET __VERIFIER_assert(d == B * p) VAL [counter=1] [L38] COND FALSE !(!(r >= d)) [L40] d = 2 * d [L41] p = 2 * p VAL [counter=1] [L34] EXPR counter++ VAL [counter=2] [L34] COND TRUE counter++<5 [L35] CALL __VERIFIER_assert(q == 0) VAL [counter=2] [L15] COND FALSE !(!(cond)) VAL [counter=2] [L35] RET __VERIFIER_assert(q == 0) VAL [counter=2] [L36] CALL __VERIFIER_assert(r == A) VAL [counter=2] [L15] COND FALSE !(!(cond)) VAL [counter=2] [L36] RET __VERIFIER_assert(r == A) VAL [counter=2] [L37] CALL __VERIFIER_assert(d == B * p) VAL [counter=2] [L15] COND FALSE !(!(cond)) VAL [counter=2] [L37] RET __VERIFIER_assert(d == B * p) VAL [counter=2] [L38] COND FALSE !(!(r >= d)) [L40] d = 2 * d [L41] p = 2 * p VAL [counter=2] [L34] EXPR counter++ VAL [counter=3] [L34] COND TRUE counter++<5 [L35] CALL __VERIFIER_assert(q == 0) VAL [counter=3] [L15] COND FALSE !(!(cond)) VAL [counter=3] [L35] RET __VERIFIER_assert(q == 0) VAL [counter=3] [L36] CALL __VERIFIER_assert(r == A) VAL [counter=3] [L15] COND FALSE !(!(cond)) VAL [counter=3] [L36] RET __VERIFIER_assert(r == A) VAL [counter=3] [L37] CALL __VERIFIER_assert(d == B * p) VAL [counter=3] [L15] COND FALSE !(!(cond)) VAL [counter=3] [L37] RET __VERIFIER_assert(d == B * p) VAL [counter=3] [L38] COND FALSE !(!(r >= d)) [L40] d = 2 * d [L41] p = 2 * p VAL [counter=3] [L34] EXPR counter++ VAL [counter=4] [L34] COND TRUE counter++<5 [L35] CALL __VERIFIER_assert(q == 0) VAL [counter=4] [L15] COND FALSE !(!(cond)) VAL [counter=4] [L35] RET __VERIFIER_assert(q == 0) VAL [counter=4] [L36] CALL __VERIFIER_assert(r == A) VAL [counter=4] [L15] COND FALSE !(!(cond)) VAL [counter=4] [L36] RET __VERIFIER_assert(r == A) VAL [counter=4] [L37] CALL __VERIFIER_assert(d == B * p) VAL [counter=4] [L15] COND FALSE !(!(cond)) VAL [counter=4] [L37] RET __VERIFIER_assert(d == B * p) VAL [counter=4] [L38] COND TRUE !(r >= d) VAL [counter=4] [L44] EXPR counter++ VAL [counter=5] [L44] COND TRUE counter++<5 [L45] CALL __VERIFIER_assert(A == q*B + r) VAL [counter=5] [L15] COND FALSE !(!(cond)) VAL [counter=5] [L45] RET __VERIFIER_assert(A == q*B + r) VAL [counter=5] [L46] CALL __VERIFIER_assert(d == B*p) VAL [counter=5] [L15] COND FALSE !(!(cond)) VAL [counter=5] [L46] RET __VERIFIER_assert(d == B*p) VAL [counter=5] [L48] COND FALSE !(!(p != 1)) [L50] d = d / 2 [L51] p = p / 2 [L52] COND TRUE r >= d [L53] r = r - d [L54] q = q + p VAL [counter=5] [L44] EXPR counter++ VAL [counter=6] [L44] COND FALSE !(counter++<5) [L58] CALL __VERIFIER_assert(A == d*q + r) VAL [counter=6] [L15] COND TRUE !(cond) VAL [counter=6] [L8] __assert_fail("0", "hard2.c", 8, "reach_error") VAL [counter=6] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 92.3 MB. Free memory was 52.6 MB in the beginning and 52.5 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 279.05 ms. Allocated memory is still 92.3 MB. Free memory was 61.9 MB in the beginning and 69.6 MB in the end (delta: -7.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.66 ms. Allocated memory is still 92.3 MB. Free memory was 69.6 MB in the beginning and 68.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.98 ms. Allocated memory is still 92.3 MB. Free memory was 68.3 MB in the beginning and 67.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 367.33 ms. Allocated memory is still 92.3 MB. Free memory was 67.0 MB in the beginning and 50.3 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * CodeCheck took 476054.76 ms. Allocated memory was 92.3 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 50.3 MB in the beginning and 455.4 MB in the end (delta: -405.1 MB). Peak memory consumption was 763.8 MB. Max. memory is 16.1 GB. * Witness Printer took 141.51 ms. Allocated memory is still 1.3 GB. Free memory was 455.4 MB in the beginning and 450.2 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...