./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ed5539fee4fb2d538d1b3a57f488868dc71c30a910c9437e66cd5d1c11ee1465 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:40:06,194 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:40:06,310 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:40:06,322 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:40:06,323 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:40:06,360 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:40:06,362 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:40:06,362 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:40:06,364 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:40:06,369 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:40:06,370 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:40:06,371 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:40:06,372 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:40:06,374 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:40:06,374 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:40:06,375 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:40:06,375 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:40:06,375 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:40:06,376 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:40:06,376 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:40:06,377 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:40:06,378 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:40:06,378 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:40:06,378 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:40:06,379 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:40:06,380 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:40:06,380 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:40:06,381 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:40:06,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:40:06,382 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:40:06,383 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:40:06,384 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:40:06,384 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:40:06,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:40:06,385 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:40:06,385 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:40:06,385 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:40:06,386 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:40:06,386 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:40:06,386 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed5539fee4fb2d538d1b3a57f488868dc71c30a910c9437e66cd5d1c11ee1465 [2023-11-19 07:40:06,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:40:06,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:40:06,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:40:06,706 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:40:06,706 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:40:06,708 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-5.i [2023-11-19 07:40:09,952 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:40:10,240 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:40:10,241 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-5.i [2023-11-19 07:40:10,262 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/data/837783408/5e4d088dc09446f185536c5a921aef84/FLAGb91ca13ab [2023-11-19 07:40:10,288 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/data/837783408/5e4d088dc09446f185536c5a921aef84 [2023-11-19 07:40:10,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:40:10,298 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:40:10,302 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:40:10,303 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:40:10,310 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:40:10,311 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:40:10" (1/1) ... [2023-11-19 07:40:10,312 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@112af00a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:10, skipping insertion in model container [2023-11-19 07:40:10,312 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:40:10" (1/1) ... [2023-11-19 07:40:10,365 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:40:10,620 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-5.i[916,929] [2023-11-19 07:40:10,702 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:40:10,718 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:40:10,735 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-5.i[916,929] [2023-11-19 07:40:10,768 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:40:10,790 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:40:10,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:10 WrapperNode [2023-11-19 07:40:10,791 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:40:10,793 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:40:10,793 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:40:10,794 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:40:10,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:10" (1/1) ... [2023-11-19 07:40:10,826 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:10" (1/1) ... [2023-11-19 07:40:10,888 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 119 [2023-11-19 07:40:10,889 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:40:10,890 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:40:10,890 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:40:10,890 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:40:10,901 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:10" (1/1) ... [2023-11-19 07:40:10,902 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:10" (1/1) ... [2023-11-19 07:40:10,906 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:10" (1/1) ... [2023-11-19 07:40:10,906 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:10" (1/1) ... [2023-11-19 07:40:10,918 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:10" (1/1) ... [2023-11-19 07:40:10,922 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:10" (1/1) ... [2023-11-19 07:40:10,927 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:10" (1/1) ... [2023-11-19 07:40:10,930 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:10" (1/1) ... [2023-11-19 07:40:10,935 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:40:10,936 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:40:10,936 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:40:10,937 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:40:10,938 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:10" (1/1) ... [2023-11-19 07:40:10,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:40:10,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:10,984 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:11,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:40:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:40:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:40:11,049 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:40:11,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:40:11,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:40:11,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:40:11,191 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:40:11,196 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:40:11,631 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:40:11,647 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:40:11,647 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:40:11,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:11 BoogieIcfgContainer [2023-11-19 07:40:11,652 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:40:11,655 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:40:11,655 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:40:11,659 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:40:11,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:40:10" (1/3) ... [2023-11-19 07:40:11,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d961c4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:40:11, skipping insertion in model container [2023-11-19 07:40:11,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:10" (2/3) ... [2023-11-19 07:40:11,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d961c4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:40:11, skipping insertion in model container [2023-11-19 07:40:11,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:11" (3/3) ... [2023-11-19 07:40:11,663 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-5.i [2023-11-19 07:40:11,688 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:40:11,688 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:40:11,752 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:40:11,761 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@fec4a32, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:40:11,762 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:40:11,767 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:40:11,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-19 07:40:11,785 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:11,787 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:11,787 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:40:11,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:11,794 INFO L85 PathProgramCache]: Analyzing trace with hash 929324851, now seen corresponding path program 1 times [2023-11-19 07:40:11,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:11,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268884508] [2023-11-19 07:40:11,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:11,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:12,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:12,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268884508] [2023-11-19 07:40:12,038 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-19 07:40:12,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236377709] [2023-11-19 07:40:12,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:12,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:40:12,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:12,042 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:40:12,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:40:12,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:12,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:40:12,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:12,383 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2023-11-19 07:40:12,383 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:40:12,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236377709] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:12,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:12,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:40:12,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151173933] [2023-11-19 07:40:12,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:12,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:40:12,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:12,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:40:12,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:40:12,456 INFO L87 Difference]: Start difference. First operand has 55 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-19 07:40:12,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:12,516 INFO L93 Difference]: Finished difference Result 103 states and 178 transitions. [2023-11-19 07:40:12,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:40:12,519 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 123 [2023-11-19 07:40:12,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:12,530 INFO L225 Difference]: With dead ends: 103 [2023-11-19 07:40:12,530 INFO L226 Difference]: Without dead ends: 51 [2023-11-19 07:40:12,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:40:12,542 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:12,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:40:12,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-19 07:40:12,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-11-19 07:40:12,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:40:12,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 75 transitions. [2023-11-19 07:40:12,607 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 75 transitions. Word has length 123 [2023-11-19 07:40:12,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:12,608 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 75 transitions. [2023-11-19 07:40:12,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-19 07:40:12,609 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 75 transitions. [2023-11-19 07:40:12,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-19 07:40:12,614 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:12,614 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:12,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-19 07:40:12,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 07:40:12,834 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:40:12,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:12,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1217728759, now seen corresponding path program 1 times [2023-11-19 07:40:12,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:12,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774176492] [2023-11-19 07:40:12,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:12,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:12,986 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:40:12,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [813412058] [2023-11-19 07:40:12,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:12,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:40:12,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:12,990 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:40:13,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:40:13,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:13,382 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-19 07:40:13,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:18,088 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-11-19 07:40:18,089 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:40:22,570 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse4 (mod c_~var_1_12~0 256)) (.cse2 (mod c_~var_1_8~0 256))) (let ((.cse21 (mod c_~var_1_15~0 256)) (.cse10 (= .cse4 .cse2)) (.cse11 (= c_~var_1_19~0 .cse2)) (.cse9 (= c_~var_1_1~0 0)) (.cse12 (= .cse4 c_~var_1_20~0)) (.cse13 (= (+ 4 c_~var_1_18~0) 0)) (.cse14 (= (mod c_~var_1_9~0 256) 0))) (let ((.cse15 (and .cse11 .cse9 .cse12 .cse13 .cse14)) (.cse0 (not .cse10)) (.cse6 (not .cse11)) (.cse7 (not .cse12)) (.cse8 (not .cse13)) (.cse1 (and .cse11 .cse12 .cse13)) (.cse3 (mod 2 .cse21)) (.cse16 (mod c_~var_1_13~0 65536)) (.cse17 (* .cse21 65535)) (.cse19 (mod c_~var_1_16~0 65536)) (.cse18 (mod c_~var_1_17~0 65536))) (and (or (let ((.cse5 (= .cse16 (mod (+ .cse17 c_~var_1_17~0 .cse2) 65536)))) (and (or .cse0 (and (or .cse1 (and (forall ((v_z_33 Int)) (or (< (* (div .cse2 v_z_33) .cse3) .cse4) (< v_z_33 0) (< 255 v_z_33))) .cse5 (forall ((v_z_34 Int)) (or (< 255 v_z_34) (< v_z_34 0) (< .cse4 (+ (* (div .cse2 v_z_34) .cse3) 1)))))) (or .cse6 .cse7 .cse8 (and (or .cse9 (forall ((v_z_36 Int)) (or (< v_z_36 0) (< (* (div .cse2 v_z_36) .cse3) .cse4) (< 255 v_z_36)))) (or .cse5 (and .cse9 (forall ((v_z_35 Int)) (or (< (* (div .cse2 v_z_35) .cse3) .cse4) (< 255 v_z_35) (< v_z_35 0))))) (or .cse9 (forall ((v_z_37 Int)) (or (< 255 v_z_37) (< v_z_37 0) (< .cse4 (+ (* (div .cse2 v_z_37) .cse3) 1))))))))) (or .cse10 (and (or .cse5 (and .cse11 .cse9 .cse12 (forall ((v_z_28 Int)) (or (< v_z_28 0) (< (* .cse3 (div .cse2 v_z_28)) .cse4) (< 255 v_z_28))) .cse13 .cse14)) (or .cse15 (forall ((v_z_29 Int)) (or (< (* .cse3 (div .cse2 v_z_29)) .cse4) (< 255 v_z_29) (< v_z_29 0)))) (or (forall ((v_z_30 Int)) (or (< 255 v_z_30) (< v_z_30 0) (< .cse4 (+ (* .cse3 (div .cse2 v_z_30)) 1)))) .cse15))))) (< .cse18 .cse19)) (or (let ((.cse20 (= .cse16 (mod (+ c_~var_1_16~0 .cse17 .cse2) 65536)))) (and (or .cse10 (and (or (and .cse11 .cse9 .cse12 .cse13 .cse14 (forall ((v_z_40 Int)) (or (< v_z_40 0) (< (* (div .cse2 v_z_40) .cse3) .cse4) (< 255 v_z_40)))) .cse20) (or (forall ((v_z_38 Int)) (or (< 255 v_z_38) (< v_z_38 0) (< (* .cse3 (div .cse2 v_z_38)) .cse4))) .cse15) (or (forall ((v_z_39 Int)) (or (< v_z_39 0) (< .cse4 (+ (* .cse3 (div .cse2 v_z_39)) 1)) (< 255 v_z_39))) .cse15))) (or .cse0 (and (or (and (or (and .cse9 (forall ((v_z_41 Int)) (or (< v_z_41 0) (< (* (div .cse2 v_z_41) .cse3) .cse4) (< 255 v_z_41)))) .cse20) (or (forall ((v_z_42 Int)) (or (< 255 v_z_42) (< v_z_42 0) (< (* (div .cse2 v_z_42) .cse3) .cse4))) .cse9) (or .cse9 (forall ((v_z_43 Int)) (or (< .cse4 (+ (* .cse3 (div .cse2 v_z_43)) 1)) (< v_z_43 0) (< 255 v_z_43))))) .cse6 .cse7 .cse8) (or .cse1 (and (forall ((v_z_45 Int)) (or (< v_z_45 0) (< 255 v_z_45) (< (* .cse3 (div .cse2 v_z_45)) .cse4))) .cse20 (forall ((v_z_46 Int)) (or (< 255 v_z_46) (< v_z_46 0) (< .cse4 (+ (* (div .cse2 v_z_46) .cse3) 1)))))))))) (< .cse19 (+ .cse18 1))))))) is different from false [2023-11-19 07:40:24,411 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse14 (mod c_~var_1_15~0 256)) (.cse2 (mod c_~var_1_8~0 256)) (.cse5 (= c_~var_1_1~0 0)) (.cse6 (= (mod c_~var_1_9~0 256) 0))) (let ((.cse4 (and .cse5 .cse6)) (.cse0 (< 254 .cse2)) (.cse7 (+ 1 .cse2)) (.cse1 (mod 2 .cse14)) (.cse3 (< .cse2 1)) (.cse9 (mod c_~var_1_13~0 65536)) (.cse10 (* .cse14 65535)) (.cse12 (mod c_~var_1_17~0 65536)) (.cse11 (mod c_~var_1_16~0 65536))) (and (or (let ((.cse8 (= .cse9 (mod (+ c_~var_1_16~0 .cse10 .cse2) 65536)))) (and (or (and (or .cse0 (forall ((v_z_39 Int)) (or (< v_z_39 0) (< 255 v_z_39) (< 254 (* .cse1 (div .cse2 v_z_39)))))) (or .cse3 (forall ((v_z_39 Int)) (or (< v_z_39 0) (< .cse2 (+ 2 (* .cse1 (div .cse2 v_z_39)))) (< 255 v_z_39))))) .cse4) (or .cse5 (forall ((v_z_43 Int)) (or (< .cse2 (+ (* .cse1 (div .cse2 v_z_43)) 1)) (< v_z_43 0) (< 255 v_z_43)))) (or (and (or .cse3 (forall ((v_z_40 Int)) (or (< v_z_40 0) (< 255 v_z_40) (< (* (div .cse2 v_z_40) .cse1) 0)))) .cse6 (or .cse0 (forall ((v_z_40 Int)) (or (< (* (div .cse2 v_z_40) .cse1) .cse7) (< v_z_40 0))))) .cse8) (or .cse5 (forall ((v_z_42 Int)) (or (< 255 v_z_42) (< v_z_42 0) (< (* (div .cse2 v_z_42) .cse1) .cse2)))) (or .cse4 (and (or .cse0 (forall ((v_z_38 Int)) (or (< v_z_38 0) (< (* .cse1 (div .cse2 v_z_38)) .cse7)))) (or (forall ((v_z_38 Int)) (or (< 255 v_z_38) (< v_z_38 0) (< (* .cse1 (div .cse2 v_z_38)) 0))) .cse3))) (or (and (forall ((v_z_41 Int)) (or (< v_z_41 0) (< (* (div .cse2 v_z_41) .cse1) .cse2) (< 255 v_z_41))) .cse5) .cse8))) (< .cse11 (+ .cse12 1))) (or (let ((.cse13 (= .cse9 (mod (+ .cse10 c_~var_1_17~0 .cse2) 65536)))) (and (or .cse13 (forall ((v_z_35 Int)) (or (< (* (div .cse2 v_z_35) .cse1) .cse2) (< 255 v_z_35) (< v_z_35 0)))) (or (forall ((v_z_36 Int)) (or (< v_z_36 0) (< (* (div .cse2 v_z_36) .cse1) .cse2) (< 255 v_z_36))) .cse5) (or .cse5 (forall ((v_z_37 Int)) (or (< 255 v_z_37) (< .cse2 (+ (* (div .cse2 v_z_37) .cse1) 1)) (< v_z_37 0)))) (or .cse4 (and (or .cse0 (forall ((v_z_29 Int)) (or (< (* .cse1 (div .cse2 v_z_29)) .cse7) (< v_z_29 0)))) (or (forall ((v_z_29 Int)) (or (< (* .cse1 (div .cse2 v_z_29)) 0) (< 255 v_z_29) (< v_z_29 0))) .cse3))) (or .cse4 (and (or .cse0 (forall ((v_z_30 Int)) (or (< 255 v_z_30) (< v_z_30 0) (< 254 (* .cse1 (div .cse2 v_z_30)))))) (or (forall ((v_z_30 Int)) (or (< 255 v_z_30) (< v_z_30 0) (< .cse2 (+ 2 (* .cse1 (div .cse2 v_z_30)))))) .cse3))) (or (and (or .cse0 (forall ((v_z_28 Int)) (or (< v_z_28 0) (< (* .cse1 (div .cse2 v_z_28)) .cse7)))) .cse5 (or (forall ((v_z_28 Int)) (or (< (* .cse1 (div .cse2 v_z_28)) 0) (< v_z_28 0) (< 255 v_z_28))) .cse3) .cse6) .cse13))) (< .cse12 .cse11))))) is different from false [2023-11-19 07:40:25,628 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse12 (mod c_~var_1_15~0 256)) (.cse3 (mod c_~var_1_8~0 256))) (let ((.cse4 (+ 1 .cse3)) (.cse1 (< 254 .cse3)) (.cse5 (< .cse3 1)) (.cse2 (mod 2 .cse12)) (.cse6 (= (mod c_~var_1_9~0 256) 0)) (.cse7 (mod c_~var_1_13~0 65536)) (.cse8 (* .cse12 65535)) (.cse10 (mod c_~var_1_16~0 65536)) (.cse9 (mod c_~var_1_17~0 65536))) (and (or (let ((.cse0 (= .cse7 (mod (+ .cse8 c_~var_1_17~0 .cse3) 65536)))) (and (or .cse0 (and (or .cse1 (forall ((v_z_28 Int)) (or (< v_z_28 0) (< (* .cse2 (div .cse3 v_z_28)) .cse4)))) (or (forall ((v_z_28 Int)) (or (< (* .cse2 (div .cse3 v_z_28)) 0) (< v_z_28 0) (< 255 v_z_28))) .cse5) .cse6)) (or .cse0 (forall ((v_z_35 Int)) (or (< (* (div .cse3 v_z_35) .cse2) .cse3) (< 255 v_z_35) (< v_z_35 0)))) (or .cse6 (and (or .cse1 (forall ((v_z_30 Int)) (or (< 255 v_z_30) (< v_z_30 0) (< 254 (* .cse2 (div .cse3 v_z_30)))))) (or (forall ((v_z_30 Int)) (or (< 255 v_z_30) (< v_z_30 0) (< .cse3 (+ 2 (* .cse2 (div .cse3 v_z_30)))))) .cse5))) (or .cse6 (and (or .cse1 (forall ((v_z_29 Int)) (or (< (* .cse2 (div .cse3 v_z_29)) .cse4) (< v_z_29 0)))) (or (forall ((v_z_29 Int)) (or (< (* .cse2 (div .cse3 v_z_29)) 0) (< 255 v_z_29) (< v_z_29 0))) .cse5))))) (< .cse9 .cse10)) (or (let ((.cse11 (= .cse7 (mod (+ c_~var_1_16~0 .cse8 .cse3) 65536)))) (and (or (forall ((v_z_41 Int)) (or (< v_z_41 0) (< (* (div .cse3 v_z_41) .cse2) .cse3) (< 255 v_z_41))) .cse11) (or (and (or .cse1 (forall ((v_z_38 Int)) (or (< v_z_38 0) (< (* .cse2 (div .cse3 v_z_38)) .cse4)))) (or (forall ((v_z_38 Int)) (or (< 255 v_z_38) (< v_z_38 0) (< (* .cse2 (div .cse3 v_z_38)) 0))) .cse5)) .cse6) (or (and (or .cse5 (forall ((v_z_40 Int)) (or (< v_z_40 0) (< 255 v_z_40) (< (* (div .cse3 v_z_40) .cse2) 0)))) .cse6 (or .cse1 (forall ((v_z_40 Int)) (or (< (* (div .cse3 v_z_40) .cse2) .cse4) (< v_z_40 0))))) .cse11) (or (and (or .cse1 (forall ((v_z_39 Int)) (or (< v_z_39 0) (< 255 v_z_39) (< 254 (* .cse2 (div .cse3 v_z_39)))))) (or .cse5 (forall ((v_z_39 Int)) (or (< v_z_39 0) (< .cse3 (+ 2 (* .cse2 (div .cse3 v_z_39)))) (< 255 v_z_39))))) .cse6))) (< .cse10 (+ .cse9 1)))))) is different from false [2023-11-19 07:40:27,220 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-19 07:40:27,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:27,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774176492] [2023-11-19 07:40:27,225 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:40:27,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813412058] [2023-11-19 07:40:27,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813412058] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-19 07:40:27,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:40:27,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 15 [2023-11-19 07:40:27,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371992345] [2023-11-19 07:40:27,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:27,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:40:27,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:27,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:40:27,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=106, Unknown=3, NotChecked=66, Total=210 [2023-11-19 07:40:27,237 INFO L87 Difference]: Start difference. First operand 51 states and 75 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-19 07:40:29,434 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse20 (mod c_~var_1_9~0 256)) (.cse4 (mod c_~var_1_12~0 256)) (.cse2 (mod c_~var_1_8~0 256))) (let ((.cse22 (mod c_~var_1_15~0 256)) (.cse10 (= .cse4 .cse2)) (.cse11 (= c_~var_1_19~0 .cse2)) (.cse9 (= c_~var_1_1~0 0)) (.cse12 (= .cse4 c_~var_1_20~0)) (.cse13 (= (+ 4 c_~var_1_18~0) 0)) (.cse14 (= .cse20 0))) (let ((.cse15 (and .cse11 .cse9 .cse12 .cse13 .cse14)) (.cse0 (not .cse10)) (.cse6 (not .cse11)) (.cse7 (not .cse12)) (.cse8 (not .cse13)) (.cse1 (and .cse11 .cse12 .cse13)) (.cse3 (mod 2 .cse22)) (.cse16 (mod c_~var_1_13~0 65536)) (.cse17 (* .cse22 65535)) (.cse19 (mod c_~var_1_16~0 65536)) (.cse18 (mod c_~var_1_17~0 65536))) (and (or (let ((.cse5 (= .cse16 (mod (+ .cse17 c_~var_1_17~0 .cse2) 65536)))) (and (or .cse0 (and (or .cse1 (and (forall ((v_z_33 Int)) (or (< (* (div .cse2 v_z_33) .cse3) .cse4) (< v_z_33 0) (< 255 v_z_33))) .cse5 (forall ((v_z_34 Int)) (or (< 255 v_z_34) (< v_z_34 0) (< .cse4 (+ (* (div .cse2 v_z_34) .cse3) 1)))))) (or .cse6 .cse7 .cse8 (and (or .cse9 (forall ((v_z_36 Int)) (or (< v_z_36 0) (< (* (div .cse2 v_z_36) .cse3) .cse4) (< 255 v_z_36)))) (or .cse5 (and .cse9 (forall ((v_z_35 Int)) (or (< (* (div .cse2 v_z_35) .cse3) .cse4) (< 255 v_z_35) (< v_z_35 0))))) (or .cse9 (forall ((v_z_37 Int)) (or (< 255 v_z_37) (< v_z_37 0) (< .cse4 (+ (* (div .cse2 v_z_37) .cse3) 1))))))))) (or .cse10 (and (or .cse5 (and .cse11 .cse9 .cse12 (forall ((v_z_28 Int)) (or (< v_z_28 0) (< (* .cse3 (div .cse2 v_z_28)) .cse4) (< 255 v_z_28))) .cse13 .cse14)) (or .cse15 (forall ((v_z_29 Int)) (or (< (* .cse3 (div .cse2 v_z_29)) .cse4) (< 255 v_z_29) (< v_z_29 0)))) (or (forall ((v_z_30 Int)) (or (< 255 v_z_30) (< v_z_30 0) (< .cse4 (+ (* .cse3 (div .cse2 v_z_30)) 1)))) .cse15))))) (< .cse18 .cse19)) (<= .cse20 0) (or (let ((.cse21 (= .cse16 (mod (+ c_~var_1_16~0 .cse17 .cse2) 65536)))) (and (or .cse10 (and (or (and .cse11 .cse9 .cse12 .cse13 .cse14 (forall ((v_z_40 Int)) (or (< v_z_40 0) (< (* (div .cse2 v_z_40) .cse3) .cse4) (< 255 v_z_40)))) .cse21) (or (forall ((v_z_38 Int)) (or (< 255 v_z_38) (< v_z_38 0) (< (* .cse3 (div .cse2 v_z_38)) .cse4))) .cse15) (or (forall ((v_z_39 Int)) (or (< v_z_39 0) (< .cse4 (+ (* .cse3 (div .cse2 v_z_39)) 1)) (< 255 v_z_39))) .cse15))) (or .cse0 (and (or (and (or (and .cse9 (forall ((v_z_41 Int)) (or (< v_z_41 0) (< (* (div .cse2 v_z_41) .cse3) .cse4) (< 255 v_z_41)))) .cse21) (or (forall ((v_z_42 Int)) (or (< 255 v_z_42) (< v_z_42 0) (< (* (div .cse2 v_z_42) .cse3) .cse4))) .cse9) (or .cse9 (forall ((v_z_43 Int)) (or (< .cse4 (+ (* .cse3 (div .cse2 v_z_43)) 1)) (< v_z_43 0) (< 255 v_z_43))))) .cse6 .cse7 .cse8) (or .cse1 (and (forall ((v_z_45 Int)) (or (< v_z_45 0) (< 255 v_z_45) (< (* .cse3 (div .cse2 v_z_45)) .cse4))) .cse21 (forall ((v_z_46 Int)) (or (< 255 v_z_46) (< v_z_46 0) (< .cse4 (+ (* (div .cse2 v_z_46) .cse3) 1)))))))))) (< .cse19 (+ .cse18 1))))))) is different from false [2023-11-19 07:40:34,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:34,639 INFO L93 Difference]: Finished difference Result 141 states and 204 transitions. [2023-11-19 07:40:34,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:40:34,640 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 123 [2023-11-19 07:40:34,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:34,651 INFO L225 Difference]: With dead ends: 141 [2023-11-19 07:40:34,652 INFO L226 Difference]: Without dead ends: 139 [2023-11-19 07:40:34,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 231 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=88, Invalid=329, Unknown=19, NotChecked=164, Total=600 [2023-11-19 07:40:34,655 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 69 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 348 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:34,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 721 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 2 Unknown, 348 Unchecked, 0.8s Time] [2023-11-19 07:40:34,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-11-19 07:40:34,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 124. [2023-11-19 07:40:34,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 73 states have (on average 1.178082191780822) internal successors, (86), 75 states have internal predecessors, (86), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-19 07:40:34,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 182 transitions. [2023-11-19 07:40:34,688 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 182 transitions. Word has length 123 [2023-11-19 07:40:34,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:34,689 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 182 transitions. [2023-11-19 07:40:34,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-19 07:40:34,690 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 182 transitions. [2023-11-19 07:40:34,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-19 07:40:34,694 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:34,694 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:34,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:34,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:40:34,910 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:40:34,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:34,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1274987061, now seen corresponding path program 1 times [2023-11-19 07:40:34,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:34,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080545692] [2023-11-19 07:40:34,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:34,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:34,970 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:40:34,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1300571307] [2023-11-19 07:40:34,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:34,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:40:34,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:34,975 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:40:34,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:40:35,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:35,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:40:35,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:35,130 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-19 07:40:35,130 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:40:35,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:35,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080545692] [2023-11-19 07:40:35,131 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:40:35,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300571307] [2023-11-19 07:40:35,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300571307] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:35,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:35,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:40:35,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052850887] [2023-11-19 07:40:35,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:35,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:40:35,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:35,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:40:35,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:35,140 INFO L87 Difference]: Start difference. First operand 124 states and 182 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-19 07:40:35,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:35,170 INFO L93 Difference]: Finished difference Result 245 states and 361 transitions. [2023-11-19 07:40:35,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:40:35,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 123 [2023-11-19 07:40:35,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:35,177 INFO L225 Difference]: With dead ends: 245 [2023-11-19 07:40:35,177 INFO L226 Difference]: Without dead ends: 124 [2023-11-19 07:40:35,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:35,182 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 2 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:35,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 142 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:40:35,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-11-19 07:40:35,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2023-11-19 07:40:35,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 73 states have (on average 1.1232876712328768) internal successors, (82), 75 states have internal predecessors, (82), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-19 07:40:35,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 178 transitions. [2023-11-19 07:40:35,210 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 178 transitions. Word has length 123 [2023-11-19 07:40:35,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:35,211 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 178 transitions. [2023-11-19 07:40:35,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-19 07:40:35,212 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 178 transitions. [2023-11-19 07:40:35,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-19 07:40:35,214 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:35,215 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:35,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-19 07:40:35,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:40:35,436 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:40:35,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:35,436 INFO L85 PathProgramCache]: Analyzing trace with hash 408382133, now seen corresponding path program 1 times [2023-11-19 07:40:35,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:35,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514987408] [2023-11-19 07:40:35,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:35,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:35,469 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:40:35,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [217765887] [2023-11-19 07:40:35,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:35,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:40:35,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:35,471 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:40:35,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:40:35,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:35,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-19 07:40:35,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:36,363 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-19 07:40:36,363 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:40:36,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:36,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514987408] [2023-11-19 07:40:36,364 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:40:36,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217765887] [2023-11-19 07:40:36,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217765887] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:36,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:36,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:40:36,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671068076] [2023-11-19 07:40:36,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:36,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:40:36,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:36,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:40:36,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:40:36,368 INFO L87 Difference]: Start difference. First operand 124 states and 178 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-19 07:40:36,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:36,913 INFO L93 Difference]: Finished difference Result 187 states and 262 transitions. [2023-11-19 07:40:36,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:40:36,914 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 123 [2023-11-19 07:40:36,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:36,918 INFO L225 Difference]: With dead ends: 187 [2023-11-19 07:40:36,918 INFO L226 Difference]: Without dead ends: 185 [2023-11-19 07:40:36,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:40:36,920 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 91 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:36,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 586 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:40:36,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-11-19 07:40:36,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 70. [2023-11-19 07:40:36,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 43 states have (on average 1.1395348837209303) internal successors, (49), 44 states have internal predecessors, (49), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-19 07:40:36,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 97 transitions. [2023-11-19 07:40:36,955 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 97 transitions. Word has length 123 [2023-11-19 07:40:36,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:36,956 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 97 transitions. [2023-11-19 07:40:36,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-19 07:40:36,957 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 97 transitions. [2023-11-19 07:40:36,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-19 07:40:36,960 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:36,960 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:36,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:37,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:40:37,183 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:40:37,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:37,183 INFO L85 PathProgramCache]: Analyzing trace with hash 453110410, now seen corresponding path program 1 times [2023-11-19 07:40:37,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:37,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970433481] [2023-11-19 07:40:37,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:37,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:37,225 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:40:37,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1162650016] [2023-11-19 07:40:37,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:37,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:40:37,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:37,237 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:40:37,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:40:37,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:37,402 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-19 07:40:37,405 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:38,517 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-11-19 07:40:38,517 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:40:46,004 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-19 07:40:46,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:46,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970433481] [2023-11-19 07:40:46,005 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:40:46,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162650016] [2023-11-19 07:40:46,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162650016] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-19 07:40:46,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:40:46,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2023-11-19 07:40:46,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254025144] [2023-11-19 07:40:46,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:46,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:40:46,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:46,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:40:46,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=180, Unknown=7, NotChecked=0, Total=240 [2023-11-19 07:40:46,008 INFO L87 Difference]: Start difference. First operand 70 states and 97 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-19 07:40:54,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:54,911 INFO L93 Difference]: Finished difference Result 142 states and 196 transitions. [2023-11-19 07:40:54,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 07:40:54,911 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 124 [2023-11-19 07:40:54,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:54,916 INFO L225 Difference]: With dead ends: 142 [2023-11-19 07:40:54,916 INFO L226 Difference]: Without dead ends: 140 [2023-11-19 07:40:54,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=98, Invalid=339, Unknown=25, NotChecked=0, Total=462 [2023-11-19 07:40:54,922 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 103 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 51 mSolverCounterUnsat, 29 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 29 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:54,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 492 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 129 Invalid, 29 Unknown, 0 Unchecked, 2.3s Time] [2023-11-19 07:40:54,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-11-19 07:40:54,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 86. [2023-11-19 07:40:54,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 54 states have (on average 1.1111111111111112) internal successors, (60), 55 states have internal predecessors, (60), 28 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-19 07:40:54,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 116 transitions. [2023-11-19 07:40:54,976 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 116 transitions. Word has length 124 [2023-11-19 07:40:54,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:54,977 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 116 transitions. [2023-11-19 07:40:54,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-19 07:40:54,977 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 116 transitions. [2023-11-19 07:40:54,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-19 07:40:54,987 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:54,987 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:55,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:55,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:40:55,210 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:40:55,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:55,211 INFO L85 PathProgramCache]: Analyzing trace with hash -356236216, now seen corresponding path program 1 times [2023-11-19 07:40:55,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:55,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167979296] [2023-11-19 07:40:55,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:55,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:55,238 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:40:55,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [417596931] [2023-11-19 07:40:55,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:55,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:40:55,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:55,240 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:40:55,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:40:55,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:55,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-19 07:40:55,349 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:55,851 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-19 07:40:55,852 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:40:55,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:55,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167979296] [2023-11-19 07:40:55,852 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:40:55,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417596931] [2023-11-19 07:40:55,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [417596931] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:55,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:55,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:40:55,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784281126] [2023-11-19 07:40:55,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:55,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:40:55,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:55,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:40:55,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:40:55,855 INFO L87 Difference]: Start difference. First operand 86 states and 116 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-19 07:40:56,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:56,337 INFO L93 Difference]: Finished difference Result 140 states and 194 transitions. [2023-11-19 07:40:56,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:40:56,338 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 124 [2023-11-19 07:40:56,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:56,339 INFO L225 Difference]: With dead ends: 140 [2023-11-19 07:40:56,339 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 07:40:56,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:40:56,341 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 102 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:56,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 561 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:40:56,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 07:40:56,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 07:40:56,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:56,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 07:40:56,343 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 124 [2023-11-19 07:40:56,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:56,343 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:40:56,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-19 07:40:56,344 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:40:56,344 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 07:40:56,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:40:56,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:56,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-19 07:40:56,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 07:41:00,168 INFO L899 garLoopResultBuilder]: For program point L97(lines 97 100) no Hoare annotation was computed. [2023-11-19 07:41:00,168 INFO L899 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2023-11-19 07:41:00,168 INFO L899 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2023-11-19 07:41:00,168 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-19 07:41:00,169 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-19 07:41:00,169 INFO L899 garLoopResultBuilder]: For program point L81(line 81) no Hoare annotation was computed. [2023-11-19 07:41:00,169 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-19 07:41:00,169 INFO L902 garLoopResultBuilder]: At program point L77(line 77) the Hoare annotation is: true [2023-11-19 07:41:00,169 INFO L902 garLoopResultBuilder]: At program point L77-1(line 77) the Hoare annotation is: true [2023-11-19 07:41:00,169 INFO L899 garLoopResultBuilder]: For program point L44(lines 44 54) no Hoare annotation was computed. [2023-11-19 07:41:00,169 INFO L899 garLoopResultBuilder]: For program point L44-1(lines 41 65) no Hoare annotation was computed. [2023-11-19 07:41:00,170 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 105 116) no Hoare annotation was computed. [2023-11-19 07:41:00,170 INFO L899 garLoopResultBuilder]: For program point L69(line 69) no Hoare annotation was computed. [2023-11-19 07:41:00,170 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 07:41:00,170 INFO L902 garLoopResultBuilder]: At program point L94(line 94) the Hoare annotation is: true [2023-11-19 07:41:00,170 INFO L902 garLoopResultBuilder]: At program point L94-1(line 94) the Hoare annotation is: true [2023-11-19 07:41:00,170 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 07:41:00,170 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-19 07:41:00,170 INFO L899 garLoopResultBuilder]: For program point L78(line 78) no Hoare annotation was computed. [2023-11-19 07:41:00,171 INFO L899 garLoopResultBuilder]: For program point property_returnLabel#1(lines 101 104) no Hoare annotation was computed. [2023-11-19 07:41:00,171 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 53) no Hoare annotation was computed. [2023-11-19 07:41:00,171 INFO L902 garLoopResultBuilder]: At program point L74(line 74) the Hoare annotation is: true [2023-11-19 07:41:00,171 INFO L902 garLoopResultBuilder]: At program point L74-1(line 74) the Hoare annotation is: true [2023-11-19 07:41:00,171 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 65) no Hoare annotation was computed. [2023-11-19 07:41:00,171 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 07:41:00,171 INFO L899 garLoopResultBuilder]: For program point L95(lines 66 96) no Hoare annotation was computed. [2023-11-19 07:41:00,172 INFO L902 garLoopResultBuilder]: At program point L91(line 91) the Hoare annotation is: true [2023-11-19 07:41:00,172 INFO L902 garLoopResultBuilder]: At program point L91-1(line 91) the Hoare annotation is: true [2023-11-19 07:41:00,172 INFO L902 garLoopResultBuilder]: At program point L87(line 87) the Hoare annotation is: true [2023-11-19 07:41:00,172 INFO L902 garLoopResultBuilder]: At program point L87-1(line 87) the Hoare annotation is: true [2023-11-19 07:41:00,172 INFO L902 garLoopResultBuilder]: At program point L83(line 83) the Hoare annotation is: true [2023-11-19 07:41:00,174 INFO L902 garLoopResultBuilder]: At program point L83-1(line 83) the Hoare annotation is: true [2023-11-19 07:41:00,176 INFO L899 garLoopResultBuilder]: For program point L46(lines 46 50) no Hoare annotation was computed. [2023-11-19 07:41:00,177 INFO L899 garLoopResultBuilder]: For program point L75(line 75) no Hoare annotation was computed. [2023-11-19 07:41:00,177 INFO L895 garLoopResultBuilder]: At program point L108-2(lines 108 114) the Hoare annotation is: (let ((.cse0 (<= (mod ~var_1_9~0 256) 0))) (or (and (<= (+ (* (div (mod ~var_1_8~0 256) (mod ~var_1_14~0 256)) (mod 2 (mod ~var_1_15~0 256))) 1) (mod ~var_1_12~0 256)) .cse0) (= ~var_1_8~0 ~var_1_12~0) (and .cse0 (not (= |ULTIMATE.start_property_#res#1| 0))))) [2023-11-19 07:41:00,177 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 07:41:00,177 INFO L899 garLoopResultBuilder]: For program point L108-3(lines 108 114) no Hoare annotation was computed. [2023-11-19 07:41:00,178 INFO L895 garLoopResultBuilder]: At program point L71(line 71) the Hoare annotation is: (let ((.cse0 (<= (mod ~var_1_9~0 256) 0))) (or (and (<= (+ (* (div (mod ~var_1_8~0 256) (mod ~var_1_14~0 256)) (mod 2 (mod ~var_1_15~0 256))) 1) (mod ~var_1_12~0 256)) .cse0) (= ~var_1_8~0 ~var_1_12~0) (and .cse0 (not (= |ULTIMATE.start_property_#res#1| 0))))) [2023-11-19 07:41:00,178 INFO L895 garLoopResultBuilder]: At program point L71-1(line 71) the Hoare annotation is: (let ((.cse0 (<= (mod ~var_1_9~0 256) 0))) (or (and (<= (+ (* (div (mod ~var_1_8~0 256) (mod ~var_1_14~0 256)) (mod 2 (mod ~var_1_15~0 256))) 1) (mod ~var_1_12~0 256)) .cse0) (= ~var_1_8~0 ~var_1_12~0) (and .cse0 (not (= |ULTIMATE.start_property_#res#1| 0))))) [2023-11-19 07:41:00,178 INFO L899 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2023-11-19 07:41:00,180 INFO L899 garLoopResultBuilder]: For program point L59(lines 59 61) no Hoare annotation was computed. [2023-11-19 07:41:00,180 INFO L899 garLoopResultBuilder]: For program point L59-2(lines 59 61) no Hoare annotation was computed. [2023-11-19 07:41:00,180 INFO L902 garLoopResultBuilder]: At program point L88(line 88) the Hoare annotation is: true [2023-11-19 07:41:00,181 INFO L899 garLoopResultBuilder]: For program point L55-1(lines 55 57) no Hoare annotation was computed. [2023-11-19 07:41:00,181 INFO L902 garLoopResultBuilder]: At program point L84(line 84) the Hoare annotation is: true [2023-11-19 07:41:00,181 INFO L902 garLoopResultBuilder]: At program point L80(line 80) the Hoare annotation is: true [2023-11-19 07:41:00,181 INFO L902 garLoopResultBuilder]: At program point L80-1(line 80) the Hoare annotation is: true [2023-11-19 07:41:00,182 INFO L899 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2023-11-19 07:41:00,182 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 40) no Hoare annotation was computed. [2023-11-19 07:41:00,183 INFO L895 garLoopResultBuilder]: At program point L68(line 68) the Hoare annotation is: (let ((.cse0 (<= (mod ~var_1_9~0 256) 0))) (or (and (<= (+ (* (div (mod ~var_1_8~0 256) (mod ~var_1_14~0 256)) (mod 2 (mod ~var_1_15~0 256))) 1) (mod ~var_1_12~0 256)) .cse0) (= ~var_1_8~0 ~var_1_12~0) (and .cse0 (not (= |ULTIMATE.start_property_#res#1| 0))))) [2023-11-19 07:41:00,183 INFO L895 garLoopResultBuilder]: At program point L68-1(line 68) the Hoare annotation is: (let ((.cse0 (<= (mod ~var_1_9~0 256) 0))) (or (and (<= (+ (* (div (mod ~var_1_8~0 256) (mod ~var_1_14~0 256)) (mod 2 (mod ~var_1_15~0 256))) 1) (mod ~var_1_12~0 256)) .cse0) (= ~var_1_8~0 ~var_1_12~0) (and .cse0 (not (= |ULTIMATE.start_property_#res#1| 0))))) [2023-11-19 07:41:00,183 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-19 07:41:00,183 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-11-19 07:41:00,183 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-11-19 07:41:00,183 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-19 07:41:00,187 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-19 07:41:00,189 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:41:00,211 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:41:00 BoogieIcfgContainer [2023-11-19 07:41:00,211 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:41:00,212 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:41:00,212 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:41:00,212 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:41:00,213 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:11" (3/4) ... [2023-11-19 07:41:00,216 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:41:00,221 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-19 07:41:00,232 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-19 07:41:00,233 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 07:41:00,234 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:41:00,234 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:41:00,270 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((var_1_8 % 256) / (var_1_14 % 256)) * (2 % (var_1_15 % 256))) + 1) <= (var_1_12 % 256)) && ((var_1_9 % 256) <= 0)) || (var_1_8 == var_1_12)) || (((var_1_9 % 256) <= 0) && !((\result == 0)))) [2023-11-19 07:41:00,312 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((var_1_8 % 256) / (var_1_14 % 256)) * (2 % (var_1_15 % 256))) + 1) <= (var_1_12 % 256)) && ((var_1_9 % 256) <= 0)) || (var_1_8 == var_1_12)) || (((var_1_9 % 256) <= 0) && !((\result == 0)))) [2023-11-19 07:41:00,377 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:41:00,378 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:41:00,378 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:41:00,379 INFO L158 Benchmark]: Toolchain (without parser) took 50080.59ms. Allocated memory was 155.2MB in the beginning and 364.9MB in the end (delta: 209.7MB). Free memory was 111.0MB in the beginning and 247.8MB in the end (delta: -136.8MB). Peak memory consumption was 74.8MB. Max. memory is 16.1GB. [2023-11-19 07:41:00,379 INFO L158 Benchmark]: CDTParser took 0.75ms. Allocated memory is still 113.2MB. Free memory is still 60.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:41:00,380 INFO L158 Benchmark]: CACSL2BoogieTranslator took 489.62ms. Allocated memory is still 155.2MB. Free memory was 110.6MB in the beginning and 98.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:41:00,381 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.05ms. Allocated memory is still 155.2MB. Free memory was 98.1MB in the beginning and 94.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:41:00,382 INFO L158 Benchmark]: Boogie Preprocessor took 45.45ms. Allocated memory is still 155.2MB. Free memory was 94.7MB in the beginning and 92.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:41:00,383 INFO L158 Benchmark]: RCFGBuilder took 716.15ms. Allocated memory is still 155.2MB. Free memory was 92.6MB in the beginning and 116.5MB in the end (delta: -23.9MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2023-11-19 07:41:00,383 INFO L158 Benchmark]: TraceAbstraction took 48556.12ms. Allocated memory was 155.2MB in the beginning and 364.9MB in the end (delta: 209.7MB). Free memory was 115.6MB in the beginning and 253.0MB in the end (delta: -137.4MB). Peak memory consumption was 211.0MB. Max. memory is 16.1GB. [2023-11-19 07:41:00,384 INFO L158 Benchmark]: Witness Printer took 166.25ms. Allocated memory is still 364.9MB. Free memory was 253.0MB in the beginning and 247.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 07:41:00,387 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75ms. Allocated memory is still 113.2MB. Free memory is still 60.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 489.62ms. Allocated memory is still 155.2MB. Free memory was 110.6MB in the beginning and 98.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.05ms. Allocated memory is still 155.2MB. Free memory was 98.1MB in the beginning and 94.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.45ms. Allocated memory is still 155.2MB. Free memory was 94.7MB in the beginning and 92.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 716.15ms. Allocated memory is still 155.2MB. Free memory was 92.6MB in the beginning and 116.5MB in the end (delta: -23.9MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * TraceAbstraction took 48556.12ms. Allocated memory was 155.2MB in the beginning and 364.9MB in the end (delta: 209.7MB). Free memory was 115.6MB in the beginning and 253.0MB in the end (delta: -137.4MB). Peak memory consumption was 211.0MB. Max. memory is 16.1GB. * Witness Printer took 166.25ms. Allocated memory is still 364.9MB. Free memory was 253.0MB in the beginning and 247.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 48.5s, OverallIterations: 6, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 17.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 31 mSolverCounterUnknown, 427 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 367 mSDsluCounter, 2577 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 348 IncrementalHoareTripleChecker+Unchecked, 1841 mSDsCounter, 122 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 393 IncrementalHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 122 mSolverCounterUnsat, 736 mSDtfsCounter, 393 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1009 GetRequests, 942 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 16.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=2, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 184 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 137 PreInvPairs, 188 NumberOfFragments, 212 HoareAnnotationTreeSize, 137 FomulaSimplifications, 4560 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 22 FomulaSimplificationsInter, 8837 FormulaSimplificationTreeSizeReductionInter, 3.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 23.9s InterpolantComputationTime, 863 NumberOfCodeBlocks, 863 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 979 ConstructedInterpolants, 9 QuantifiedInterpolants, 5750 SizeOfPredicates, 74 NumberOfNonLiveVariables, 1792 ConjunctsInSsa, 89 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 5990/6080 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 108]: Loop Invariant Derived loop invariant: ((((((((var_1_8 % 256) / (var_1_14 % 256)) * (2 % (var_1_15 % 256))) + 1) <= (var_1_12 % 256)) && ((var_1_9 % 256) <= 0)) || (var_1_8 == var_1_12)) || (((var_1_9 % 256) <= 0) && !((\result == 0)))) RESULT: Ultimate proved your program to be correct! [2023-11-19 07:41:00,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc02bb5-fbad-475a-98d7-882db45820f5/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE