./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-83.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-83.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB --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 9f9164e1a34b1b6bc15e6d6c10636cd9af69b42bd441271521d7273f80c38ea6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:32:53,173 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:32:53,244 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:32:53,254 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:32:53,255 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:32:53,299 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:32:53,302 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:32:53,303 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:32:53,303 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:32:53,303 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:32:53,303 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:32:53,303 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:32:53,304 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:32:53,304 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:32:53,304 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:32:53,304 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:32:53,304 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:32:53,304 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:32:53,304 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:32:53,304 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:32:53,306 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:32:53,306 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:32:53,306 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:32:53,307 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:32:53,307 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:32:53,307 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:32:53,307 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:32:53,307 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:32:53,307 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:32:53,307 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:32:53,307 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:32:53,308 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:32:53,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:32:53,308 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:32:53,309 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:32:53,309 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:32:53,309 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:32:53,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:32:53,309 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:32:53,309 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:32:53,309 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:32:53,309 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:32:53,310 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:32:53,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:32:53,310 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:32:53,310 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:32:53,310 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:32:53,310 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:32:53,310 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 9f9164e1a34b1b6bc15e6d6c10636cd9af69b42bd441271521d7273f80c38ea6 [2024-11-28 03:32:53,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:32:53,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:32:53,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:32:53,658 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:32:53,658 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:32:53,660 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-83.i [2024-11-28 03:32:56,753 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/data/84cebc4a3/2f5099598d894d37a6e33e16945595d3/FLAGf01d9bdc7 [2024-11-28 03:32:57,072 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:32:57,074 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-83.i [2024-11-28 03:32:57,087 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/data/84cebc4a3/2f5099598d894d37a6e33e16945595d3/FLAGf01d9bdc7 [2024-11-28 03:32:57,111 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/data/84cebc4a3/2f5099598d894d37a6e33e16945595d3 [2024-11-28 03:32:57,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:32:57,117 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:32:57,119 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:32:57,119 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:32:57,124 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:32:57,125 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:32:57" (1/1) ... [2024-11-28 03:32:57,127 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@465f73b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:57, skipping insertion in model container [2024-11-28 03:32:57,127 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:32:57" (1/1) ... [2024-11-28 03:32:57,157 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:32:57,372 WARN L250 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_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-83.i[916,929] [2024-11-28 03:32:57,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:32:57,472 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:32:57,484 WARN L250 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_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-83.i[916,929] [2024-11-28 03:32:57,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:32:57,555 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:32:57,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:57 WrapperNode [2024-11-28 03:32:57,557 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:32:57,558 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:32:57,559 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:32:57,559 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:32:57,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:57" (1/1) ... [2024-11-28 03:32:57,583 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:57" (1/1) ... [2024-11-28 03:32:57,636 INFO L138 Inliner]: procedures = 26, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 130 [2024-11-28 03:32:57,637 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:32:57,637 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:32:57,637 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:32:57,637 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:32:57,653 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:57" (1/1) ... [2024-11-28 03:32:57,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:57" (1/1) ... [2024-11-28 03:32:57,659 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:57" (1/1) ... [2024-11-28 03:32:57,674 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:32:57,674 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:57" (1/1) ... [2024-11-28 03:32:57,674 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:57" (1/1) ... [2024-11-28 03:32:57,680 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:57" (1/1) ... [2024-11-28 03:32:57,682 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:57" (1/1) ... [2024-11-28 03:32:57,685 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:57" (1/1) ... [2024-11-28 03:32:57,686 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:57" (1/1) ... [2024-11-28 03:32:57,688 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:57" (1/1) ... [2024-11-28 03:32:57,690 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:32:57,691 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:32:57,691 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:32:57,691 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:32:57,692 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:57" (1/1) ... [2024-11-28 03:32:57,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:32:57,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:57,725 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:57,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:32:57,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:32:57,753 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:32:57,753 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:32:57,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:32:57,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:32:57,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:32:57,842 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:32:57,844 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:32:58,289 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-28 03:32:58,289 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:32:58,300 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:32:58,300 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:32:58,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:32:58 BoogieIcfgContainer [2024-11-28 03:32:58,301 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:32:58,303 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:32:58,303 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:32:58,309 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:32:58,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:32:57" (1/3) ... [2024-11-28 03:32:58,310 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@780208ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:32:58, skipping insertion in model container [2024-11-28 03:32:58,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:57" (2/3) ... [2024-11-28 03:32:58,310 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@780208ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:32:58, skipping insertion in model container [2024-11-28 03:32:58,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:32:58" (3/3) ... [2024-11-28 03:32:58,312 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-83.i [2024-11-28 03:32:58,328 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:32:58,330 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-83.i that has 2 procedures, 58 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:32:58,386 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:32:58,398 INFO L333 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, 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;@42f40173, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:32:58,399 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:32:58,403 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 43 states have internal predecessors, (60), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 03:32:58,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 03:32:58,413 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:58,414 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2024-11-28 03:32:58,414 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:58,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:58,420 INFO L85 PathProgramCache]: Analyzing trace with hash -694190171, now seen corresponding path program 1 times [2024-11-28 03:32:58,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:58,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747814394] [2024-11-28 03:32:58,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:58,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:58,676 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 03:32:58,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:58,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747814394] [2024-11-28 03:32:58,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747814394] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:32:58,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838324306] [2024-11-28 03:32:58,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:58,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:32:58,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:58,684 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:32:58,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:32:58,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:58,866 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:32:58,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:32:58,921 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 03:32:58,922 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:32:58,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838324306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:58,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:32:58,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:32:58,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97203485] [2024-11-28 03:32:58,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:58,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:32:58,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:58,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:32:58,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:32:58,958 INFO L87 Difference]: Start difference. First operand has 58 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 43 states have internal predecessors, (60), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) 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, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 03:32:58,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:58,997 INFO L93 Difference]: Finished difference Result 109 states and 179 transitions. [2024-11-28 03:32:59,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:32:59,002 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, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 88 [2024-11-28 03:32:59,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:59,015 INFO L225 Difference]: With dead ends: 109 [2024-11-28 03:32:59,015 INFO L226 Difference]: Without dead ends: 54 [2024-11-28 03:32:59,022 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:32:59,028 INFO L435 NwaCegarLoop]: 78 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, 78 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 [2024-11-28 03:32:59,029 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:32:59,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-28 03:32:59,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-28 03:32:59,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 39 states have internal predecessors, (52), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 03:32:59,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 78 transitions. [2024-11-28 03:32:59,078 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 78 transitions. Word has length 88 [2024-11-28 03:32:59,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:59,079 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 78 transitions. [2024-11-28 03:32:59,081 INFO L472 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, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 03:32:59,082 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 78 transitions. [2024-11-28 03:32:59,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 03:32:59,086 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:59,086 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2024-11-28 03:32:59,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:32:59,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:32:59,290 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:59,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:59,291 INFO L85 PathProgramCache]: Analyzing trace with hash -738011223, now seen corresponding path program 1 times [2024-11-28 03:32:59,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:59,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100615075] [2024-11-28 03:32:59,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:59,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:59,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:59,642 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 03:32:59,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:59,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100615075] [2024-11-28 03:32:59,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100615075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:59,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:59,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:32:59,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553866722] [2024-11-28 03:32:59,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:59,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:32:59,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:59,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:32:59,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:59,648 INFO L87 Difference]: Start difference. First operand 54 states and 78 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, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 03:32:59,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:59,729 INFO L93 Difference]: Finished difference Result 130 states and 190 transitions. [2024-11-28 03:32:59,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:32:59,732 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, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 88 [2024-11-28 03:32:59,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:59,734 INFO L225 Difference]: With dead ends: 130 [2024-11-28 03:32:59,734 INFO L226 Difference]: Without dead ends: 79 [2024-11-28 03:32:59,735 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:59,738 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 70 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:59,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 140 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:32:59,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-28 03:32:59,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 54. [2024-11-28 03:32:59,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 39 states have (on average 1.2820512820512822) internal successors, (50), 39 states have internal predecessors, (50), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 03:32:59,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 76 transitions. [2024-11-28 03:32:59,761 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 76 transitions. Word has length 88 [2024-11-28 03:32:59,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:59,764 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 76 transitions. [2024-11-28 03:32:59,764 INFO L472 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, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 03:32:59,764 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 76 transitions. [2024-11-28 03:32:59,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 03:32:59,767 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:59,767 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2024-11-28 03:32:59,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:32:59,771 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:59,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:59,772 INFO L85 PathProgramCache]: Analyzing trace with hash -537900652, now seen corresponding path program 1 times [2024-11-28 03:32:59,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:59,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315604823] [2024-11-28 03:32:59,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:59,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:59,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:00,067 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 03:33:00,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:00,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315604823] [2024-11-28 03:33:00,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315604823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:00,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:00,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:33:00,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727448611] [2024-11-28 03:33:00,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:00,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:33:00,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:00,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:33:00,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:33:00,070 INFO L87 Difference]: Start difference. First operand 54 states and 76 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 03:33:00,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:00,171 INFO L93 Difference]: Finished difference Result 107 states and 152 transitions. [2024-11-28 03:33:00,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:00,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 89 [2024-11-28 03:33:00,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:00,173 INFO L225 Difference]: With dead ends: 107 [2024-11-28 03:33:00,173 INFO L226 Difference]: Without dead ends: 56 [2024-11-28 03:33:00,174 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:33:00,174 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 7 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:00,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 193 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:33:00,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-28 03:33:00,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-11-28 03:33:00,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 41 states have internal predecessors, (52), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 03:33:00,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 78 transitions. [2024-11-28 03:33:00,182 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 78 transitions. Word has length 89 [2024-11-28 03:33:00,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:00,182 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 78 transitions. [2024-11-28 03:33:00,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 03:33:00,183 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2024-11-28 03:33:00,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 03:33:00,184 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:00,184 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2024-11-28 03:33:00,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:33:00,184 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:00,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:00,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1747814245, now seen corresponding path program 1 times [2024-11-28 03:33:00,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:00,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233874497] [2024-11-28 03:33:00,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:00,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:04,008 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 03:33:04,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:04,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233874497] [2024-11-28 03:33:04,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233874497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:04,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:04,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:33:04,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82616658] [2024-11-28 03:33:04,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:04,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:33:04,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:04,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:33:04,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:33:04,013 INFO L87 Difference]: Start difference. First operand 56 states and 78 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 03:33:04,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:04,414 INFO L93 Difference]: Finished difference Result 140 states and 191 transitions. [2024-11-28 03:33:04,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:33:04,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 90 [2024-11-28 03:33:04,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:04,416 INFO L225 Difference]: With dead ends: 140 [2024-11-28 03:33:04,416 INFO L226 Difference]: Without dead ends: 87 [2024-11-28 03:33:04,417 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:33:04,418 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 96 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:04,418 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 174 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:33:04,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-28 03:33:04,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 73. [2024-11-28 03:33:04,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 57 states have (on average 1.263157894736842) internal successors, (72), 57 states have internal predecessors, (72), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 03:33:04,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 98 transitions. [2024-11-28 03:33:04,434 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 98 transitions. Word has length 90 [2024-11-28 03:33:04,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:04,435 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 98 transitions. [2024-11-28 03:33:04,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 03:33:04,435 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 98 transitions. [2024-11-28 03:33:04,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-28 03:33:04,436 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:04,437 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2024-11-28 03:33:04,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:33:04,437 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:04,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:04,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1950450378, now seen corresponding path program 1 times [2024-11-28 03:33:04,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:04,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225712525] [2024-11-28 03:33:04,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:04,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:04,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:06,017 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 03:33:06,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:06,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225712525] [2024-11-28 03:33:06,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225712525] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:06,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:06,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:33:06,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005934888] [2024-11-28 03:33:06,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:06,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:33:06,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:06,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:33:06,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:33:06,021 INFO L87 Difference]: Start difference. First operand 73 states and 98 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 03:33:06,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:06,627 INFO L93 Difference]: Finished difference Result 170 states and 228 transitions. [2024-11-28 03:33:06,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:33:06,628 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 91 [2024-11-28 03:33:06,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:06,629 INFO L225 Difference]: With dead ends: 170 [2024-11-28 03:33:06,629 INFO L226 Difference]: Without dead ends: 100 [2024-11-28 03:33:06,630 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:33:06,631 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 38 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:06,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 246 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:33:06,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-28 03:33:06,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 73. [2024-11-28 03:33:06,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 57 states have (on average 1.263157894736842) internal successors, (72), 57 states have internal predecessors, (72), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 03:33:06,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 98 transitions. [2024-11-28 03:33:06,644 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 98 transitions. Word has length 91 [2024-11-28 03:33:06,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:06,644 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 98 transitions. [2024-11-28 03:33:06,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 03:33:06,645 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 98 transitions. [2024-11-28 03:33:06,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-28 03:33:06,646 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:06,646 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2024-11-28 03:33:06,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:33:06,647 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:06,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:06,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1333399668, now seen corresponding path program 1 times [2024-11-28 03:33:06,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:06,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894995171] [2024-11-28 03:33:06,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:06,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:06,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:09,837 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 03:33:09,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:09,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894995171] [2024-11-28 03:33:09,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894995171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:09,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:09,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:33:09,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353440242] [2024-11-28 03:33:09,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:09,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:33:09,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:09,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:33:09,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:33:09,842 INFO L87 Difference]: Start difference. First operand 73 states and 98 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 03:33:11,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:11,722 INFO L93 Difference]: Finished difference Result 169 states and 226 transitions. [2024-11-28 03:33:11,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:33:11,723 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 91 [2024-11-28 03:33:11,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:11,724 INFO L225 Difference]: With dead ends: 169 [2024-11-28 03:33:11,725 INFO L226 Difference]: Without dead ends: 99 [2024-11-28 03:33:11,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:33:11,726 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 125 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:11,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 329 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 03:33:11,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-28 03:33:11,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 60. [2024-11-28 03:33:11,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 44 states have (on average 1.2272727272727273) internal successors, (54), 44 states have internal predecessors, (54), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 03:33:11,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 80 transitions. [2024-11-28 03:33:11,743 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 80 transitions. Word has length 91 [2024-11-28 03:33:11,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:11,743 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 80 transitions. [2024-11-28 03:33:11,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 03:33:11,746 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 80 transitions. [2024-11-28 03:33:11,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-28 03:33:11,748 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:11,748 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2024-11-28 03:33:11,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:33:11,748 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:11,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:11,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1947015180, now seen corresponding path program 1 times [2024-11-28 03:33:11,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:11,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517925842] [2024-11-28 03:33:11,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:11,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:11,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:11,887 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 03:33:11,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:11,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517925842] [2024-11-28 03:33:11,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517925842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:11,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:11,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:33:11,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632683772] [2024-11-28 03:33:11,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:11,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:33:11,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:11,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:33:11,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:33:11,890 INFO L87 Difference]: Start difference. First operand 60 states and 80 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 03:33:11,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:11,974 INFO L93 Difference]: Finished difference Result 138 states and 181 transitions. [2024-11-28 03:33:11,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:33:11,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 92 [2024-11-28 03:33:11,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:11,976 INFO L225 Difference]: With dead ends: 138 [2024-11-28 03:33:11,976 INFO L226 Difference]: Without dead ends: 81 [2024-11-28 03:33:11,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:33:11,977 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 27 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:11,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 113 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:33:11,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-28 03:33:11,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 65. [2024-11-28 03:33:11,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 49 states have (on average 1.2244897959183674) internal successors, (60), 49 states have internal predecessors, (60), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 03:33:12,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 86 transitions. [2024-11-28 03:33:12,003 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 86 transitions. Word has length 92 [2024-11-28 03:33:12,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:12,004 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 86 transitions. [2024-11-28 03:33:12,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 03:33:12,004 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 86 transitions. [2024-11-28 03:33:12,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-28 03:33:12,006 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:12,006 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2024-11-28 03:33:12,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:33:12,006 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:12,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:12,007 INFO L85 PathProgramCache]: Analyzing trace with hash 828114827, now seen corresponding path program 1 times [2024-11-28 03:33:12,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:12,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535893470] [2024-11-28 03:33:12,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:12,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:12,404 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 03:33:12,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:12,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535893470] [2024-11-28 03:33:12,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535893470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:12,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:12,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:33:12,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203245027] [2024-11-28 03:33:12,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:12,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:33:12,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:12,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:33:12,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:33:12,408 INFO L87 Difference]: Start difference. First operand 65 states and 86 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 03:33:12,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:12,819 INFO L93 Difference]: Finished difference Result 127 states and 161 transitions. [2024-11-28 03:33:12,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:33:12,820 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 92 [2024-11-28 03:33:12,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:12,821 INFO L225 Difference]: With dead ends: 127 [2024-11-28 03:33:12,821 INFO L226 Difference]: Without dead ends: 125 [2024-11-28 03:33:12,822 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:33:12,823 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 101 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:12,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 348 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:33:12,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-28 03:33:12,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 92. [2024-11-28 03:33:12,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 67 states have (on average 1.1791044776119404) internal successors, (79), 68 states have internal predecessors, (79), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 03:33:12,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 119 transitions. [2024-11-28 03:33:12,840 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 119 transitions. Word has length 92 [2024-11-28 03:33:12,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:12,840 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 119 transitions. [2024-11-28 03:33:12,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 03:33:12,841 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 119 transitions. [2024-11-28 03:33:12,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-28 03:33:12,842 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:12,843 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2024-11-28 03:33:12,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:33:12,843 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:12,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:12,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1353138948, now seen corresponding path program 1 times [2024-11-28 03:33:12,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:12,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099677228] [2024-11-28 03:33:12,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:12,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:12,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:12,952 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 03:33:12,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:12,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099677228] [2024-11-28 03:33:12,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099677228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:12,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:12,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:33:12,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679402632] [2024-11-28 03:33:12,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:12,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:33:12,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:12,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:33:12,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:33:12,954 INFO L87 Difference]: Start difference. First operand 92 states and 119 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 03:33:13,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:13,080 INFO L93 Difference]: Finished difference Result 176 states and 225 transitions. [2024-11-28 03:33:13,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:33:13,081 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 93 [2024-11-28 03:33:13,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:13,084 INFO L225 Difference]: With dead ends: 176 [2024-11-28 03:33:13,084 INFO L226 Difference]: Without dead ends: 102 [2024-11-28 03:33:13,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:33:13,086 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 31 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:13,087 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 154 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:33:13,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-28 03:33:13,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 87. [2024-11-28 03:33:13,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 62 states have (on average 1.1612903225806452) internal successors, (72), 63 states have internal predecessors, (72), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 03:33:13,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 112 transitions. [2024-11-28 03:33:13,110 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 112 transitions. Word has length 93 [2024-11-28 03:33:13,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:13,110 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 112 transitions. [2024-11-28 03:33:13,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 03:33:13,110 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 112 transitions. [2024-11-28 03:33:13,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-28 03:33:13,115 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:13,115 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2024-11-28 03:33:13,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:33:13,115 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:13,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:13,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1162617665, now seen corresponding path program 1 times [2024-11-28 03:33:13,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:13,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650117635] [2024-11-28 03:33:13,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:13,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:13,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:14,074 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 03:33:14,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:14,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650117635] [2024-11-28 03:33:14,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650117635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:14,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:14,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 03:33:14,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855597060] [2024-11-28 03:33:14,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:14,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:33:14,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:14,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:33:14,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:33:14,077 INFO L87 Difference]: Start difference. First operand 87 states and 112 transitions. Second operand has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 03:33:14,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:14,916 INFO L93 Difference]: Finished difference Result 132 states and 165 transitions. [2024-11-28 03:33:14,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:33:14,916 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 95 [2024-11-28 03:33:14,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:14,918 INFO L225 Difference]: With dead ends: 132 [2024-11-28 03:33:14,918 INFO L226 Difference]: Without dead ends: 130 [2024-11-28 03:33:14,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:33:14,922 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 96 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:14,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 553 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:33:14,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-11-28 03:33:14,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 95. [2024-11-28 03:33:14,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 70 states have (on average 1.1714285714285715) internal successors, (82), 71 states have internal predecessors, (82), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 03:33:14,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 122 transitions. [2024-11-28 03:33:14,947 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 122 transitions. Word has length 95 [2024-11-28 03:33:14,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:14,948 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 122 transitions. [2024-11-28 03:33:14,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 03:33:14,948 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 122 transitions. [2024-11-28 03:33:14,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-28 03:33:14,949 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:14,950 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2024-11-28 03:33:14,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:33:14,950 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:14,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:14,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1749423679, now seen corresponding path program 1 times [2024-11-28 03:33:14,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:14,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110490244] [2024-11-28 03:33:14,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:14,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:14,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:15,658 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 03:33:15,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:15,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110490244] [2024-11-28 03:33:15,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110490244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:15,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:15,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 03:33:15,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299635348] [2024-11-28 03:33:15,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:15,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:33:15,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:15,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:33:15,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:33:15,660 INFO L87 Difference]: Start difference. First operand 95 states and 122 transitions. Second operand has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 03:33:16,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:16,407 INFO L93 Difference]: Finished difference Result 139 states and 173 transitions. [2024-11-28 03:33:16,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:33:16,408 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 95 [2024-11-28 03:33:16,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:16,409 INFO L225 Difference]: With dead ends: 139 [2024-11-28 03:33:16,409 INFO L226 Difference]: Without dead ends: 137 [2024-11-28 03:33:16,410 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:33:16,410 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 92 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:16,411 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 500 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:33:16,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-28 03:33:16,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 95. [2024-11-28 03:33:16,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 70 states have (on average 1.1714285714285715) internal successors, (82), 71 states have internal predecessors, (82), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 03:33:16,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 122 transitions. [2024-11-28 03:33:16,433 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 122 transitions. Word has length 95 [2024-11-28 03:33:16,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:16,433 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 122 transitions. [2024-11-28 03:33:16,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 03:33:16,434 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 122 transitions. [2024-11-28 03:33:16,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-28 03:33:16,435 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:16,435 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2024-11-28 03:33:16,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:33:16,435 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:16,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:16,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1081849632, now seen corresponding path program 1 times [2024-11-28 03:33:16,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:16,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737446313] [2024-11-28 03:33:16,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:16,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:16,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:16,490 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 03:33:16,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:16,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737446313] [2024-11-28 03:33:16,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737446313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:16,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:16,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:33:16,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175551304] [2024-11-28 03:33:16,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:16,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:33:16,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:16,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:33:16,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:33:16,492 INFO L87 Difference]: Start difference. First operand 95 states and 122 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 03:33:16,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:16,565 INFO L93 Difference]: Finished difference Result 210 states and 268 transitions. [2024-11-28 03:33:16,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:33:16,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 95 [2024-11-28 03:33:16,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:16,567 INFO L225 Difference]: With dead ends: 210 [2024-11-28 03:33:16,567 INFO L226 Difference]: Without dead ends: 133 [2024-11-28 03:33:16,568 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:33:16,568 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 55 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:16,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 124 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:33:16,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-28 03:33:16,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 132. [2024-11-28 03:33:16,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 91 states have (on average 1.120879120879121) internal successors, (102), 93 states have internal predecessors, (102), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-28 03:33:16,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 168 transitions. [2024-11-28 03:33:16,602 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 168 transitions. Word has length 95 [2024-11-28 03:33:16,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:16,602 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 168 transitions. [2024-11-28 03:33:16,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 03:33:16,603 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 168 transitions. [2024-11-28 03:33:16,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 03:33:16,604 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:16,604 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2024-11-28 03:33:16,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:33:16,605 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:16,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:16,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1543387222, now seen corresponding path program 1 times [2024-11-28 03:33:16,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:16,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349788888] [2024-11-28 03:33:16,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:16,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:16,657 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 03:33:16,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:16,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349788888] [2024-11-28 03:33:16,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349788888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:16,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:16,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:33:16,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545466263] [2024-11-28 03:33:16,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:16,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:33:16,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:16,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:33:16,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:33:16,660 INFO L87 Difference]: Start difference. First operand 132 states and 168 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 03:33:16,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:16,732 INFO L93 Difference]: Finished difference Result 247 states and 313 transitions. [2024-11-28 03:33:16,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:33:16,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 96 [2024-11-28 03:33:16,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:16,735 INFO L225 Difference]: With dead ends: 247 [2024-11-28 03:33:16,735 INFO L226 Difference]: Without dead ends: 133 [2024-11-28 03:33:16,735 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:33:16,736 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 44 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:16,737 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 167 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:33:16,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-28 03:33:16,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 132. [2024-11-28 03:33:16,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 91 states have (on average 1.10989010989011) internal successors, (101), 93 states have internal predecessors, (101), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-28 03:33:16,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 167 transitions. [2024-11-28 03:33:16,775 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 167 transitions. Word has length 96 [2024-11-28 03:33:16,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:16,775 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 167 transitions. [2024-11-28 03:33:16,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 03:33:16,775 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 167 transitions. [2024-11-28 03:33:16,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 03:33:16,777 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:16,777 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2024-11-28 03:33:16,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:33:16,778 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:16,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:16,779 INFO L85 PathProgramCache]: Analyzing trace with hash -247771051, now seen corresponding path program 1 times [2024-11-28 03:33:16,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:16,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333808373] [2024-11-28 03:33:16,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:16,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:16,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:16,873 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 03:33:16,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:16,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333808373] [2024-11-28 03:33:16,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333808373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:16,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:16,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:33:16,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916973154] [2024-11-28 03:33:16,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:16,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:33:16,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:16,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:33:16,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:33:16,875 INFO L87 Difference]: Start difference. First operand 132 states and 167 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 03:33:17,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:17,003 INFO L93 Difference]: Finished difference Result 256 states and 321 transitions. [2024-11-28 03:33:17,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:17,004 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 96 [2024-11-28 03:33:17,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:17,006 INFO L225 Difference]: With dead ends: 256 [2024-11-28 03:33:17,006 INFO L226 Difference]: Without dead ends: 142 [2024-11-28 03:33:17,006 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:33:17,007 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 18 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:17,008 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 185 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:33:17,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-28 03:33:17,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 132. [2024-11-28 03:33:17,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 91 states have (on average 1.098901098901099) internal successors, (100), 93 states have internal predecessors, (100), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-28 03:33:17,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 166 transitions. [2024-11-28 03:33:17,037 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 166 transitions. Word has length 96 [2024-11-28 03:33:17,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:17,037 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 166 transitions. [2024-11-28 03:33:17,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 03:33:17,038 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 166 transitions. [2024-11-28 03:33:17,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-28 03:33:17,039 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:17,039 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2024-11-28 03:33:17,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:33:17,039 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:17,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:17,040 INFO L85 PathProgramCache]: Analyzing trace with hash 235791686, now seen corresponding path program 1 times [2024-11-28 03:33:17,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:17,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323177060] [2024-11-28 03:33:17,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:17,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:17,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:17,122 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 03:33:17,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:17,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323177060] [2024-11-28 03:33:17,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323177060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:17,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:17,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:33:17,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592487050] [2024-11-28 03:33:17,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:17,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:33:17,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:17,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:33:17,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:33:17,125 INFO L87 Difference]: Start difference. First operand 132 states and 166 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 03:33:17,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:17,314 INFO L93 Difference]: Finished difference Result 260 states and 327 transitions. [2024-11-28 03:33:17,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:17,316 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 97 [2024-11-28 03:33:17,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:17,318 INFO L225 Difference]: With dead ends: 260 [2024-11-28 03:33:17,320 INFO L226 Difference]: Without dead ends: 146 [2024-11-28 03:33:17,321 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:33:17,322 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 108 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:17,322 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 120 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:33:17,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-28 03:33:17,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 108. [2024-11-28 03:33:17,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 76 states have (on average 1.0921052631578947) internal successors, (83), 77 states have internal predecessors, (83), 26 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-28 03:33:17,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 135 transitions. [2024-11-28 03:33:17,352 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 135 transitions. Word has length 97 [2024-11-28 03:33:17,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:17,352 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 135 transitions. [2024-11-28 03:33:17,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 03:33:17,353 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 135 transitions. [2024-11-28 03:33:17,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 03:33:17,354 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:17,354 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2024-11-28 03:33:17,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:33:17,355 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:17,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:17,356 INFO L85 PathProgramCache]: Analyzing trace with hash -853161537, now seen corresponding path program 1 times [2024-11-28 03:33:17,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:17,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088124490] [2024-11-28 03:33:17,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:17,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:17,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:33:17,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1293149024] [2024-11-28 03:33:17,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:17,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:17,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:17,413 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:17,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:33:17,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:33:17,518 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:33:17,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:33:17,658 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:33:17,658 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:33:17,660 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 03:33:17,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:33:17,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 03:33:17,871 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:17,982 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:33:17,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:33:17 BoogieIcfgContainer [2024-11-28 03:33:17,989 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:33:17,989 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:33:17,989 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:33:17,990 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:33:17,991 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:32:58" (3/4) ... [2024-11-28 03:33:17,994 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 03:33:17,995 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:33:17,998 INFO L158 Benchmark]: Toolchain (without parser) took 20881.41ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 92.4MB in the beginning and 181.2MB in the end (delta: -88.8MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2024-11-28 03:33:17,998 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 117.4MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:33:17,999 INFO L158 Benchmark]: CACSL2BoogieTranslator took 439.34ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 79.6MB in the end (delta: 12.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:33:17,999 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.39ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 76.7MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:33:17,999 INFO L158 Benchmark]: Boogie Preprocessor took 53.28ms. Allocated memory is still 117.4MB. Free memory was 76.7MB in the beginning and 72.7MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:33:18,000 INFO L158 Benchmark]: RCFGBuilder took 609.50ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 54.7MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:33:18,000 INFO L158 Benchmark]: TraceAbstraction took 19685.64ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 54.2MB in the beginning and 181.2MB in the end (delta: -127.1MB). Peak memory consumption was 83.3MB. Max. memory is 16.1GB. [2024-11-28 03:33:18,002 INFO L158 Benchmark]: Witness Printer took 7.89ms. Allocated memory is still 218.1MB. Free memory was 181.2MB in the beginning and 181.2MB in the end (delta: 42.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:33:18,004 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 117.4MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 439.34ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 79.6MB in the end (delta: 12.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.39ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 76.7MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 53.28ms. Allocated memory is still 117.4MB. Free memory was 76.7MB in the beginning and 72.7MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 609.50ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 54.7MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 19685.64ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 54.2MB in the beginning and 181.2MB in the end (delta: -127.1MB). Peak memory consumption was 83.3MB. Max. memory is 16.1GB. * Witness Printer took 7.89ms. Allocated memory is still 218.1MB. Free memory was 181.2MB in the beginning and 181.2MB in the end (delta: 42.2kB). There was no memory consumed. 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 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 52, overapproximation of bitwiseOr at line 91. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 128; [L23] unsigned char var_1_2 = 0; [L24] unsigned short int var_1_3 = 25; [L25] unsigned char var_1_4 = 4; [L26] signed long int var_1_8 = 127; [L27] signed long int var_1_10 = 0; [L28] signed long int var_1_11 = 128; [L29] signed long int var_1_12 = 24; [L30] signed short int var_1_14 = -128; [L31] signed char var_1_15 = 64; [L32] signed char var_1_16 = 5; [L33] signed long int var_1_17 = 1; [L34] unsigned short int last_1_var_1_1 = 128; VAL [isInitial=0, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=0, var_1_3=25, var_1_4=4, var_1_8=127] [L95] isInitial = 1 [L96] FCALL initially() [L98] CALL updateLastVariables() [L88] last_1_var_1_1 = var_1_1 VAL [isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=0, var_1_3=25, var_1_4=4, var_1_8=127] [L98] RET updateLastVariables() [L99] CALL updateVariables() [L67] var_1_2 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_3=25, var_1_4=4, var_1_8=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_3=25, var_1_4=4, var_1_8=127] [L68] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_3=25, var_1_4=4, var_1_8=127] [L69] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=25, var_1_4=4, var_1_8=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=25, var_1_4=4, var_1_8=127] [L69] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=25, var_1_4=4, var_1_8=127] [L70] var_1_3 = __VERIFIER_nondet_ushort() [L71] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_4=4, var_1_8=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_4=4, var_1_8=127] [L71] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_4=4, var_1_8=127] [L72] CALL assume_abort_if_not(var_1_3 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=4, var_1_8=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=4, var_1_8=127] [L72] RET assume_abort_if_not(var_1_3 <= 65534) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=4, var_1_8=127] [L73] var_1_4 = __VERIFIER_nondet_uchar() [L74] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_8=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_8=127] [L74] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_8=127] [L75] CALL assume_abort_if_not(var_1_4 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_8=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_8=127] [L75] RET assume_abort_if_not(var_1_4 <= 255) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_8=127] [L76] CALL assume_abort_if_not(var_1_4 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L76] RET assume_abort_if_not(var_1_4 != 0) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L77] var_1_10 = __VERIFIER_nondet_long() [L78] CALL assume_abort_if_not(var_1_10 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L78] RET assume_abort_if_not(var_1_10 >= -2147483648) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L79] CALL assume_abort_if_not(var_1_10 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L79] RET assume_abort_if_not(var_1_10 <= 2147483647) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L80] var_1_11 = __VERIFIER_nondet_long() [L81] CALL assume_abort_if_not(var_1_11 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L81] RET assume_abort_if_not(var_1_11 >= -2147483648) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L82] CALL assume_abort_if_not(var_1_11 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L82] RET assume_abort_if_not(var_1_11 <= 2147483647) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L83] var_1_16 = __VERIFIER_nondet_char() [L84] CALL assume_abort_if_not(var_1_16 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=2, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=2, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L84] RET assume_abort_if_not(var_1_16 >= -127) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=2, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L85] CALL assume_abort_if_not(var_1_16 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=2, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=2, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L85] RET assume_abort_if_not(var_1_16 <= 126) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=2, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L99] RET updateVariables() [L100] CALL step() [L38] var_1_14 = 200 [L39] var_1_15 = var_1_16 [L40] var_1_17 = var_1_10 [L41] signed long int stepLocal_0 = var_1_3 / var_1_4; VAL [isInitial=1, last_1_var_1_1=128, stepLocal_0=1, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=200, var_1_15=2, var_1_16=2, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L42] COND TRUE \read(var_1_2) [L43] var_1_1 = (((((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) < 0 ) ? -((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) : ((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))))) VAL [isInitial=1, last_1_var_1_1=128, stepLocal_0=1, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=200, var_1_15=2, var_1_16=2, var_1_17=1, var_1_1=1, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L51] signed long int stepLocal_2 = var_1_3 + var_1_1; VAL [isInitial=1, last_1_var_1_1=128, stepLocal_0=1, stepLocal_2=2, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=200, var_1_15=2, var_1_16=2, var_1_17=1, var_1_1=1, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L52] EXPR var_1_14 ^ var_1_15 VAL [isInitial=1, last_1_var_1_1=128, stepLocal_0=1, stepLocal_2=2, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=200, var_1_15=2, var_1_16=2, var_1_17=1, var_1_1=1, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L52] signed long int stepLocal_1 = var_1_14 ^ var_1_15; [L53] COND TRUE var_1_15 <= stepLocal_2 VAL [isInitial=1, last_1_var_1_1=128, stepLocal_0=1, stepLocal_1=1, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=200, var_1_15=2, var_1_16=2, var_1_17=1, var_1_1=1, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L54] COND TRUE var_1_1 == stepLocal_1 [L55] var_1_8 = (((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10))) + var_1_11) VAL [isInitial=1, last_1_var_1_1=128, stepLocal_0=1, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=200, var_1_15=2, var_1_16=2, var_1_17=1, var_1_1=1, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=1] [L62] COND FALSE !(var_1_15 > var_1_15) VAL [isInitial=1, last_1_var_1_1=128, stepLocal_0=1, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=200, var_1_15=2, var_1_16=2, var_1_17=1, var_1_1=1, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=1] [L100] RET step() [L101] CALL, EXPR property() [L91] EXPR (var_1_2 ? (var_1_1 == ((unsigned short int) (((((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) < 0 ) ? -((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) : ((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))))))) : (((var_1_3 / var_1_4) >= (((((last_1_var_1_1 * var_1_15)) < ((~ last_1_var_1_1))) ? ((last_1_var_1_1 * var_1_15)) : ((~ last_1_var_1_1))))) ? (var_1_1 == ((unsigned short int) var_1_4)) : (var_1_1 == ((unsigned short int) var_1_3)))) && ((var_1_15 <= (var_1_3 + var_1_1)) ? ((var_1_1 == (var_1_14 ^ var_1_15)) ? (var_1_8 == ((signed long int) (((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10))) + var_1_11))) : (var_1_8 == ((signed long int) var_1_11))) : (var_1_8 == ((signed long int) var_1_10))) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=200, var_1_15=2, var_1_16=2, var_1_17=1, var_1_1=1, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=1] [L91] EXPR (var_1_15 <= (var_1_3 + var_1_1)) ? ((var_1_1 == (var_1_14 ^ var_1_15)) ? (var_1_8 == ((signed long int) (((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10))) + var_1_11))) : (var_1_8 == ((signed long int) var_1_11))) : (var_1_8 == ((signed long int) var_1_10)) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=200, var_1_15=2, var_1_16=2, var_1_17=1, var_1_1=1, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=1] [L91] EXPR var_1_14 ^ var_1_15 VAL [isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=200, var_1_15=2, var_1_16=2, var_1_17=1, var_1_1=1, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=1] [L91] EXPR (var_1_15 <= (var_1_3 + var_1_1)) ? ((var_1_1 == (var_1_14 ^ var_1_15)) ? (var_1_8 == ((signed long int) (((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10))) + var_1_11))) : (var_1_8 == ((signed long int) var_1_11))) : (var_1_8 == ((signed long int) var_1_10)) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=200, var_1_15=2, var_1_16=2, var_1_17=1, var_1_1=1, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=1] [L91] EXPR (var_1_2 ? (var_1_1 == ((unsigned short int) (((((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) < 0 ) ? -((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) : ((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))))))) : (((var_1_3 / var_1_4) >= (((((last_1_var_1_1 * var_1_15)) < ((~ last_1_var_1_1))) ? ((last_1_var_1_1 * var_1_15)) : ((~ last_1_var_1_1))))) ? (var_1_1 == ((unsigned short int) var_1_4)) : (var_1_1 == ((unsigned short int) var_1_3)))) && ((var_1_15 <= (var_1_3 + var_1_1)) ? ((var_1_1 == (var_1_14 ^ var_1_15)) ? (var_1_8 == ((signed long int) (((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10))) + var_1_11))) : (var_1_8 == ((signed long int) var_1_11))) : (var_1_8 == ((signed long int) var_1_10))) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=200, var_1_15=2, var_1_16=2, var_1_17=1, var_1_1=1, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=1] [L91-L92] return (((((var_1_2 ? (var_1_1 == ((unsigned short int) (((((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) < 0 ) ? -((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) : ((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))))))) : (((var_1_3 / var_1_4) >= (((((last_1_var_1_1 * var_1_15)) < ((~ last_1_var_1_1))) ? ((last_1_var_1_1 * var_1_15)) : ((~ last_1_var_1_1))))) ? (var_1_1 == ((unsigned short int) var_1_4)) : (var_1_1 == ((unsigned short int) var_1_3)))) && ((var_1_15 <= (var_1_3 + var_1_1)) ? ((var_1_1 == (var_1_14 ^ var_1_15)) ? (var_1_8 == ((signed long int) (((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10))) + var_1_11))) : (var_1_8 == ((signed long int) var_1_11))) : (var_1_8 == ((signed long int) var_1_10)))) && ((var_1_15 > var_1_15) ? (var_1_12 == ((signed long int) ((((var_1_11) < (var_1_10)) ? (var_1_11) : (var_1_10))))) : 1)) && (var_1_14 == ((signed short int) 200))) && (var_1_15 == ((signed char) var_1_16))) && (var_1_17 == ((signed long int) var_1_10)) ; [L101] RET, EXPR property() [L101] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=200, var_1_15=2, var_1_16=2, var_1_17=1, var_1_1=1, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=1] [L19] reach_error() VAL [isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=200, var_1_15=2, var_1_16=2, var_1_17=1, var_1_1=1, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 19.5s, OverallIterations: 16, TraceHistogramMax: 13, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 908 SdHoareTripleChecker+Valid, 4.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 908 mSDsluCounter, 3424 SdHoareTripleChecker+Invalid, 3.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2203 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1996 IncrementalHoareTripleChecker+Invalid, 2050 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 1221 mSDtfsCounter, 1996 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 201 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=12, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 15 MinimizatonAttempts, 296 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 11.5s InterpolantComputationTime, 1674 NumberOfCodeBlocks, 1674 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1460 ConstructedInterpolants, 0 QuantifiedInterpolants, 4876 SizeOfPredicates, 0 NumberOfNonLiveVariables, 218 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 16 InterpolantComputations, 15 PerfectInterpolantSequences, 4968/4992 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 03:33:18,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-83.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB --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 9f9164e1a34b1b6bc15e6d6c10636cd9af69b42bd441271521d7273f80c38ea6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:33:21,139 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:33:21,276 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 03:33:21,282 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:33:21,283 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:33:21,310 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:33:21,311 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:33:21,311 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:33:21,311 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:33:21,312 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:33:21,312 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:33:21,312 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:33:21,312 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:33:21,313 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:33:21,313 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:33:21,313 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:33:21,313 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:33:21,313 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:33:21,313 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:33:21,313 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:33:21,314 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:33:21,314 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:33:21,314 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:33:21,314 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:33:21,314 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 03:33:21,314 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 03:33:21,314 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:33:21,314 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:33:21,314 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:33:21,315 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:33:21,315 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:33:21,315 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:33:21,315 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:33:21,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:33:21,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:33:21,316 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:33:21,316 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:33:21,316 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:33:21,316 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:33:21,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:33:21,316 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:33:21,317 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:33:21,317 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:33:21,317 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:33:21,317 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 03:33:21,317 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 03:33:21,317 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:33:21,317 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:33:21,317 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:33:21,318 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:33:21,318 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 9f9164e1a34b1b6bc15e6d6c10636cd9af69b42bd441271521d7273f80c38ea6 [2024-11-28 03:33:21,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:33:21,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:33:21,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:33:21,740 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:33:21,740 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:33:21,742 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-83.i [2024-11-28 03:33:24,869 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/data/fa615044d/c0a23b5c28cd42aaa1547840aec364e4/FLAG748f7a63a [2024-11-28 03:33:25,165 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:33:25,166 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-83.i [2024-11-28 03:33:25,175 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/data/fa615044d/c0a23b5c28cd42aaa1547840aec364e4/FLAG748f7a63a [2024-11-28 03:33:25,193 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/data/fa615044d/c0a23b5c28cd42aaa1547840aec364e4 [2024-11-28 03:33:25,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:33:25,199 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:33:25,200 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:33:25,201 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:33:25,206 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:33:25,207 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:33:25" (1/1) ... [2024-11-28 03:33:25,209 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24029218 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:25, skipping insertion in model container [2024-11-28 03:33:25,209 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:33:25" (1/1) ... [2024-11-28 03:33:25,232 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:33:25,426 WARN L250 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_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-83.i[916,929] [2024-11-28 03:33:25,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:33:25,499 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:33:25,512 WARN L250 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_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-83.i[916,929] [2024-11-28 03:33:25,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:33:25,568 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:33:25,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:25 WrapperNode [2024-11-28 03:33:25,569 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:33:25,574 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:33:25,574 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:33:25,574 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:33:25,583 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:25" (1/1) ... [2024-11-28 03:33:25,595 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:25" (1/1) ... [2024-11-28 03:33:25,635 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 96 [2024-11-28 03:33:25,636 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:33:25,636 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:33:25,636 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:33:25,636 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:33:25,650 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:25" (1/1) ... [2024-11-28 03:33:25,650 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:25" (1/1) ... [2024-11-28 03:33:25,656 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:25" (1/1) ... [2024-11-28 03:33:25,677 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:33:25,678 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:25" (1/1) ... [2024-11-28 03:33:25,678 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:25" (1/1) ... [2024-11-28 03:33:25,698 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:25" (1/1) ... [2024-11-28 03:33:25,699 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:25" (1/1) ... [2024-11-28 03:33:25,706 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:25" (1/1) ... [2024-11-28 03:33:25,712 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:25" (1/1) ... [2024-11-28 03:33:25,714 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:25" (1/1) ... [2024-11-28 03:33:25,720 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:33:25,721 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:33:25,721 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:33:25,721 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:33:25,726 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:25" (1/1) ... [2024-11-28 03:33:25,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:33:25,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:25,777 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:33:25,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:33:25,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:33:25,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 03:33:25,815 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:33:25,815 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:33:25,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:33:25,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:33:25,913 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:33:25,915 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:33:26,299 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-28 03:33:26,300 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:33:26,310 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:33:26,310 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:33:26,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:33:26 BoogieIcfgContainer [2024-11-28 03:33:26,311 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:33:26,313 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:33:26,314 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:33:26,319 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:33:26,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:33:25" (1/3) ... [2024-11-28 03:33:26,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f1343c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:33:26, skipping insertion in model container [2024-11-28 03:33:26,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:25" (2/3) ... [2024-11-28 03:33:26,321 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f1343c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:33:26, skipping insertion in model container [2024-11-28 03:33:26,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:33:26" (3/3) ... [2024-11-28 03:33:26,322 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-83.i [2024-11-28 03:33:26,339 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:33:26,340 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-83.i that has 2 procedures, 44 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:33:26,399 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:33:26,412 INFO L333 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, 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;@73f75f10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:33:26,413 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:33:26,417 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 03:33:26,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-28 03:33:26,427 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:26,427 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2024-11-28 03:33:26,428 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:26,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:26,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1160138568, now seen corresponding path program 1 times [2024-11-28 03:33:26,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:33:26,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [806080980] [2024-11-28 03:33:26,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:26,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:26,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:26,476 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:26,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:33:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:26,639 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:33:26,649 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:26,694 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 03:33:26,694 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:33:26,696 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:33:26,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806080980] [2024-11-28 03:33:26,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806080980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:26,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:26,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:33:26,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787311450] [2024-11-28 03:33:26,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:26,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:33:26,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:33:26,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:33:26,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:33:26,737 INFO L87 Difference]: Start difference. First operand has 44 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 03:33:26,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:26,762 INFO L93 Difference]: Finished difference Result 81 states and 135 transitions. [2024-11-28 03:33:26,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:33:26,765 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 84 [2024-11-28 03:33:26,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:26,772 INFO L225 Difference]: With dead ends: 81 [2024-11-28 03:33:26,773 INFO L226 Difference]: Without dead ends: 40 [2024-11-28 03:33:26,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:33:26,780 INFO L435 NwaCegarLoop]: 56 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, 56 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 [2024-11-28 03:33:26,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:33:26,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-28 03:33:26,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-11-28 03:33:26,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 03:33:26,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 56 transitions. [2024-11-28 03:33:26,836 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 56 transitions. Word has length 84 [2024-11-28 03:33:26,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:26,838 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 56 transitions. [2024-11-28 03:33:26,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 03:33:26,838 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 56 transitions. [2024-11-28 03:33:26,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-28 03:33:26,844 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:26,844 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2024-11-28 03:33:26,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:33:27,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:27,045 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:27,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:27,046 INFO L85 PathProgramCache]: Analyzing trace with hash 853426634, now seen corresponding path program 1 times [2024-11-28 03:33:27,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:33:27,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1939653485] [2024-11-28 03:33:27,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:27,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:27,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:27,051 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:27,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa6f95-671d-49a3-9aa1-ea68fb01aa01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:33:27,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:27,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 03:33:27,237 INFO L279 TraceCheckSpWp]: Computing forward predicates...