./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound2.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_6c0a4ec1-a698-4af2-a1ed-cb317357501d/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6c0a4ec1-a698-4af2-a1ed-cb317357501d/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6c0a4ec1-a698-4af2-a1ed-cb317357501d/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6c0a4ec1-a698-4af2-a1ed-cb317357501d/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6c0a4ec1-a698-4af2-a1ed-cb317357501d/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6c0a4ec1-a698-4af2-a1ed-cb317357501d/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 d7fb0cb3aecdc56f56ac37bccb90dc5beea8d3d2 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 16:17:11,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:17:11,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:17:11,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:17:11,586 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:17:11,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:17:11,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:17:11,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:17:11,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:17:11,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:17:11,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:17:11,601 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:17:11,602 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:17:11,603 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:17:11,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:17:11,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:17:11,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:17:11,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:17:11,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:17:11,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:17:11,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:17:11,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:17:11,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:17:11,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:17:11,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:17:11,628 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:17:11,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:17:11,629 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:17:11,630 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:17:11,632 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:17:11,633 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:17:11,634 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:17:11,635 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:17:11,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:17:11,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:17:11,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:17:11,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:17:11,641 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:17:11,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:17:11,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:17:11,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:17:11,646 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6c0a4ec1-a698-4af2-a1ed-cb317357501d/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 16:17:11,673 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:17:11,674 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:17:11,675 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:17:11,675 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:17:11,676 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:17:11,676 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:17:11,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:17:11,677 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:17:11,677 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:17:11,678 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:17:11,678 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:17:11,678 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:17:11,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:17:11,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:17:11,679 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:17:11,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:17:11,680 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:17:11,680 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:17:11,680 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:17:11,680 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:17:11,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:17:11,681 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:17:11,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:17:11,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:17:11,682 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:17:11,682 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:17:11,682 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:17:11,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:17:11,683 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:17:11,683 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_6c0a4ec1-a698-4af2-a1ed-cb317357501d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6c0a4ec1-a698-4af2-a1ed-cb317357501d/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7fb0cb3aecdc56f56ac37bccb90dc5beea8d3d2 [2020-12-01 16:17:11,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:17:12,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:17:12,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:17:12,034 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:17:12,037 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:17:12,038 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6c0a4ec1-a698-4af2-a1ed-cb317357501d/bin/ukojak/../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound2.c [2020-12-01 16:17:12,135 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6c0a4ec1-a698-4af2-a1ed-cb317357501d/bin/ukojak/data/970b3fa61/05778e070a5f4ee5b69d60dd45d4d4c1/FLAG7203364cd [2020-12-01 16:17:12,643 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:17:12,643 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6c0a4ec1-a698-4af2-a1ed-cb317357501d/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound2.c [2020-12-01 16:17:12,651 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6c0a4ec1-a698-4af2-a1ed-cb317357501d/bin/ukojak/data/970b3fa61/05778e070a5f4ee5b69d60dd45d4d4c1/FLAG7203364cd [2020-12-01 16:17:12,996 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6c0a4ec1-a698-4af2-a1ed-cb317357501d/bin/ukojak/data/970b3fa61/05778e070a5f4ee5b69d60dd45d4d4c1 [2020-12-01 16:17:13,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:17:13,003 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:17:13,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:17:13,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:17:13,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:17:13,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:17:12" (1/1) ... [2020-12-01 16:17:13,021 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@219a6a59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:17:13, skipping insertion in model container [2020-12-01 16:17:13,021 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:17:12" (1/1) ... [2020-12-01 16:17:13,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:17:13,056 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:17:13,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:17:13,245 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:17:13,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:17:13,304 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:17:13,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:17:13 WrapperNode [2020-12-01 16:17:13,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:17:13,306 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:17:13,306 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:17:13,306 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:17:13,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:17:13" (1/1) ... [2020-12-01 16:17:13,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:17:13" (1/1) ... [2020-12-01 16:17:13,347 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:17:13,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:17:13,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:17:13,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:17:13,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:17:13" (1/1) ... [2020-12-01 16:17:13,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:17:13" (1/1) ... [2020-12-01 16:17:13,360 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:17:13" (1/1) ... [2020-12-01 16:17:13,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:17:13" (1/1) ... [2020-12-01 16:17:13,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:17:13" (1/1) ... [2020-12-01 16:17:13,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:17:13" (1/1) ... [2020-12-01 16:17:13,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:17:13" (1/1) ... [2020-12-01 16:17:13,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:17:13,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:17:13,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:17:13,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:17:13,383 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:17:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6c0a4ec1-a698-4af2-a1ed-cb317357501d/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 16:17:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:17:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:17:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:17:13,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:17:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-12-01 16:17:13,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-12-01 16:17:13,967 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:17:13,968 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-01 16:17:13,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:17:13 BoogieIcfgContainer [2020-12-01 16:17:13,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:17:13,972 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:17:13,972 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:17:13,986 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:17:13,987 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:17:13" (1/1) ... [2020-12-01 16:17:13,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:17:14,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:17:14,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2020-12-01 16:17:14,050 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2020-12-01 16:17:14,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 16:17:14,056 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:17:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:17:14,298 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 16:17:14,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:17:14,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 24 states and 38 transitions. [2020-12-01 16:17:14,475 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 38 transitions. [2020-12-01 16:17:14,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:17:14,476 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:17:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:17:14,559 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 16:17:14,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:17:14,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 27 states and 42 transitions. [2020-12-01 16:17:14,695 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 42 transitions. [2020-12-01 16:17:14,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 16:17:14,696 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:17:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:17:14,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 21 conjunts are in the unsatisfiable core [2020-12-01 16:17:14,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:17:14,953 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 16:17:15,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:17:15,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 31 states and 49 transitions. [2020-12-01 16:17:15,717 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 49 transitions. [2020-12-01 16:17:15,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 16:17:15,720 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:17:15,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:17:15,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-01 16:17:15,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:17:15,914 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 16:17:16,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:17:16,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 34 states and 55 transitions. [2020-12-01 16:17:16,256 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 55 transitions. [2020-12-01 16:17:16,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-01 16:17:16,258 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:17:16,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:17:16,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 16:17:16,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:17:16,488 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 16:17:16,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:17:16,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 37 states and 60 transitions. [2020-12-01 16:17:16,752 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 60 transitions. [2020-12-01 16:17:16,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-01 16:17:16,755 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:17:16,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:17:16,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 27 conjunts are in the unsatisfiable core [2020-12-01 16:17:16,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:17:17,046 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-12-01 16:17:18,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:17:18,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 42 states and 70 transitions. [2020-12-01 16:17:18,062 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 70 transitions. [2020-12-01 16:17:18,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-01 16:17:18,064 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:17:18,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:17:18,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-01 16:17:18,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:17:18,175 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 16:17:18,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:17:18,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 45 states and 79 transitions. [2020-12-01 16:17:18,446 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 79 transitions. [2020-12-01 16:17:18,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-01 16:17:18,450 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:17:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:17:18,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 16:17:18,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:17:18,585 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-12-01 16:17:19,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:17:19,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 49 states and 87 transitions. [2020-12-01 16:17:19,089 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 87 transitions. [2020-12-01 16:17:19,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-01 16:17:19,103 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:17:19,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:17:19,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 16:17:19,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:17:19,257 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 16:17:19,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:17:19,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 50 states and 88 transitions. [2020-12-01 16:17:19,560 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 88 transitions. [2020-12-01 16:17:19,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-12-01 16:17:19,562 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:17:19,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:17:19,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-01 16:17:19,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:17:19,660 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 20 proven. 7 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-12-01 16:17:19,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:17:19,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 50 states and 87 transitions. [2020-12-01 16:17:19,948 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 87 transitions. [2020-12-01 16:17:19,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-01 16:17:19,951 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:17:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:17:20,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 35 conjunts are in the unsatisfiable core [2020-12-01 16:17:20,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:17:20,671 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:17:20,678 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 16:17:20,682 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:17:20,699 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 24 proven. 26 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-12-01 16:17:22,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:17:22,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 55 states and 98 transitions. [2020-12-01 16:17:22,650 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 98 transitions. [2020-12-01 16:17:22,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-01 16:17:22,651 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:17:22,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:17:22,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 33 conjunts are in the unsatisfiable core [2020-12-01 16:17:22,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:17:22,976 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 24 proven. 20 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-12-01 16:17:24,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:17:24,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 61 states and 113 transitions. [2020-12-01 16:17:24,372 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 113 transitions. [2020-12-01 16:17:24,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-01 16:17:24,374 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:17:24,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:17:24,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 31 conjunts are in the unsatisfiable core [2020-12-01 16:17:24,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:17:24,548 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 26 proven. 24 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-12-01 16:17:24,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:17:24,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 63 states and 118 transitions. [2020-12-01 16:17:24,894 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 118 transitions. [2020-12-01 16:17:24,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-01 16:17:24,897 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:17:24,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:17:24,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-01 16:17:24,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:17:25,039 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 26 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2020-12-01 16:17:25,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:17:25,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 63 states and 117 transitions. [2020-12-01 16:17:25,418 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 117 transitions. [2020-12-01 16:17:25,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-01 16:17:25,420 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:17:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:17:25,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 35 conjunts are in the unsatisfiable core [2020-12-01 16:17:25,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:17:25,954 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 28 proven. 28 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2020-12-01 16:17:26,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:17:26,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 66 states and 123 transitions. [2020-12-01 16:17:26,840 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 123 transitions. [2020-12-01 16:17:26,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-01 16:17:26,842 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:17:26,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:17:26,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 16:17:26,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:17:27,246 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2020-12-01 16:17:28,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:17:28,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 56 states and 100 transitions. [2020-12-01 16:17:28,273 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 100 transitions. [2020-12-01 16:17:28,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-01 16:17:28,275 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:17:28,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:17:28,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 33 conjunts are in the unsatisfiable core [2020-12-01 16:17:28,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:17:28,485 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 30 proven. 31 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2020-12-01 16:17:29,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:17:29,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 56 states and 99 transitions. [2020-12-01 16:17:29,024 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 99 transitions. [2020-12-01 16:17:29,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-01 16:17:29,025 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:17:29,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:17:29,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 37 conjunts are in the unsatisfiable core [2020-12-01 16:17:29,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:17:29,378 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 30 proven. 39 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2020-12-01 16:17:31,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:17:31,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 62 states and 113 transitions. [2020-12-01 16:17:31,466 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 113 transitions. [2020-12-01 16:17:31,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-01 16:17:31,468 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:17:31,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:17:31,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 35 conjunts are in the unsatisfiable core [2020-12-01 16:17:31,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:17:31,778 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 32 proven. 43 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2020-12-01 16:17:32,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:17:32,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 64 states and 117 transitions. [2020-12-01 16:17:32,173 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 117 transitions. [2020-12-01 16:17:32,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-01 16:17:32,174 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:17:32,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:17:32,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 16:17:32,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:17:32,712 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:17:32,715 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:17:32,721 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:17:32,743 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 16:17:32,749 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-01 16:17:32,757 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:17:32,761 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-01 16:17:32,768 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-01 16:17:32,919 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 41 proven. 4 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-12-01 16:17:34,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:17:34,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 66 states and 127 transitions. [2020-12-01 16:17:34,050 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 127 transitions. [2020-12-01 16:17:34,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-01 16:17:34,052 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:17:34,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:17:34,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 41 conjunts are in the unsatisfiable core [2020-12-01 16:17:34,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:17:34,848 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:17:34,850 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:17:35,487 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 18 [2020-12-01 16:17:35,519 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 63 proven. 52 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2020-12-01 16:17:38,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:17:38,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 74 states and 143 transitions. [2020-12-01 16:17:38,458 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 143 transitions. [2020-12-01 16:17:38,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-12-01 16:17:38,459 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:17:38,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:17:38,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 39 conjunts are in the unsatisfiable core [2020-12-01 16:17:38,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:17:38,920 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 36 proven. 56 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2020-12-01 16:17:39,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:17:39,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 76 states and 147 transitions. [2020-12-01 16:17:39,736 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 147 transitions. [2020-12-01 16:17:39,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-12-01 16:17:39,738 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:17:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:17:39,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 49 conjunts are in the unsatisfiable core [2020-12-01 16:17:39,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:17:40,984 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 38 proven. 61 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2020-12-01 16:17:43,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:17:43,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 55 states and 80 transitions. [2020-12-01 16:17:43,228 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 80 transitions. [2020-12-01 16:17:43,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-01 16:17:43,230 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:17:43,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:17:43,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 28 conjunts are in the unsatisfiable core [2020-12-01 16:17:43,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:17:44,327 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 40 proven. 64 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2020-12-01 16:17:45,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:17:45,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 50 states and 75 transitions. [2020-12-01 16:17:45,707 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 75 transitions. [2020-12-01 16:17:45,708 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 16:17:45,708 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 25 iterations. [2020-12-01 16:17:45,722 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 16:17:45,891 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 16 [2020-12-01 16:17:46,281 WARN L197 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-12-01 16:17:46,489 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 1 [2020-12-01 16:17:46,625 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 37 [2020-12-01 16:17:46,971 WARN L197 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-12-01 16:17:47,247 WARN L197 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 47 [2020-12-01 16:17:47,291 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 16:17:47,294 INFO L569 CodeCheckObserver]: Invariant with dag size 48 [2020-12-01 16:17:47,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:17:47 ImpRootNode [2020-12-01 16:17:47,317 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:17:47,318 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:17:47,318 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:17:47,318 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:17:47,322 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:17:13" (3/4) ... [2020-12-01 16:17:47,326 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 16:17:47,331 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2020-12-01 16:17:47,335 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-01 16:17:47,335 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-01 16:17:47,336 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 16:17:47,336 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 16:17:47,386 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6c0a4ec1-a698-4af2-a1ed-cb317357501d/bin/ukojak/witness.graphml [2020-12-01 16:17:47,386 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:17:47,387 INFO L168 Benchmark]: Toolchain (without parser) took 34383.61 ms. Allocated memory was 104.9 MB in the beginning and 413.1 MB in the end (delta: 308.3 MB). Free memory was 79.2 MB in the beginning and 209.8 MB in the end (delta: -130.6 MB). Peak memory consumption was 177.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:17:47,388 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 104.9 MB. Free memory is still 64.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:17:47,389 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.70 ms. Allocated memory is still 104.9 MB. Free memory was 79.0 MB in the beginning and 81.6 MB in the end (delta: -2.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:17:47,389 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.55 ms. Allocated memory is still 104.9 MB. Free memory was 81.3 MB in the beginning and 80.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:17:47,390 INFO L168 Benchmark]: Boogie Preprocessor took 26.24 ms. Allocated memory is still 104.9 MB. Free memory was 80.0 MB in the beginning and 79.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:17:47,391 INFO L168 Benchmark]: RCFGBuilder took 595.18 ms. Allocated memory is still 104.9 MB. Free memory was 78.7 MB in the beginning and 59.7 MB in the end (delta: 19.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-12-01 16:17:47,391 INFO L168 Benchmark]: CodeCheck took 33345.34 ms. Allocated memory was 104.9 MB in the beginning and 413.1 MB in the end (delta: 308.3 MB). Free memory was 59.5 MB in the beginning and 212.9 MB in the end (delta: -153.4 MB). Peak memory consumption was 187.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:17:47,392 INFO L168 Benchmark]: Witness Printer took 68.52 ms. Allocated memory is still 413.1 MB. Free memory was 212.9 MB in the beginning and 209.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:17:47,395 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, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 31.6s, OverallIterations: 25, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 164102144 SDtfs, 74248064 SDslu, 120901552 SDs, 0 SdLazy, 580282200 SolverSat, 206550776 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10312 GetRequests, 9725 SyntacticMatches, 309 SemanticMatches, 278 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47954 ImplicationChecksByTransitivity, 24.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 1258 NumberOfCodeBlocks, 1258 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 1234 ConstructedInterpolants, 0 QuantifiedInterpolants, 406522 SizeOfPredicates, 86 NumberOfNonLiveVariables, 3364 ConjunctsInSsa, 552 ConjunctsInUnsatCore, 24 InterpolantComputations, 5 PerfectInterpolantSequences, 3926/4433 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 - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((((((p == 2 && !(0 <= r)) || !(q == 0)) || !(A == r)) || (2 * B <= r && B <= d * -1 / -2 / 2)) || ((r <= 2 && p == 1) && 0 <= r)) || (p == 2 && B <= r)) || ((!((B == 1 && p == 2) && B * 2 == d) && !((((p == 4 && B == 1) && d * -1 / -2 <= 2) && d % -2 == 0) && B <= d * -1 / -2 / 2)) && !((B == 1 && B == d) && p == 1)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 104.9 MB. Free memory is still 64.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 294.70 ms. Allocated memory is still 104.9 MB. Free memory was 79.0 MB in the beginning and 81.6 MB in the end (delta: -2.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.55 ms. Allocated memory is still 104.9 MB. Free memory was 81.3 MB in the beginning and 80.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.24 ms. Allocated memory is still 104.9 MB. Free memory was 80.0 MB in the beginning and 79.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 595.18 ms. Allocated memory is still 104.9 MB. Free memory was 78.7 MB in the beginning and 59.7 MB in the end (delta: 19.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * CodeCheck took 33345.34 ms. Allocated memory was 104.9 MB in the beginning and 413.1 MB in the end (delta: 308.3 MB). Free memory was 59.5 MB in the beginning and 212.9 MB in the end (delta: -153.4 MB). Peak memory consumption was 187.4 MB. Max. memory is 16.1 GB. * Witness Printer took 68.52 ms. Allocated memory is still 413.1 MB. Free memory was 212.9 MB in the beginning and 209.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...