/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 01:49:48,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 01:49:48,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 01:49:48,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 01:49:48,358 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 01:49:48,360 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 01:49:48,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 01:49:48,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 01:49:48,367 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 01:49:48,369 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 01:49:48,370 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 01:49:48,371 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 01:49:48,371 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 01:49:48,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 01:49:48,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 01:49:48,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 01:49:48,376 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 01:49:48,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 01:49:48,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 01:49:48,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 01:49:48,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 01:49:48,387 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 01:49:48,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 01:49:48,390 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 01:49:48,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-03-31 01:49:48,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 01:49:48,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 01:49:48,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 01:49:48,408 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-03-31 01:49:48,435 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 01:49:48,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 01:49:48,436 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 01:49:48,436 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 01:49:48,438 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 01:49:48,438 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 01:49:48,438 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 01:49:48,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 01:49:48,439 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 01:49:48,439 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 01:49:48,440 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 01:49:48,440 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 01:49:48,440 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 01:49:48,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 01:49:48,440 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 01:49:48,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 01:49:48,440 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 01:49:48,440 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 01:49:48,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 01:49:48,441 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 01:49:48,441 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 01:49:48,441 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 01:49:48,441 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 01:49:48,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 01:49:48,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:49:48,442 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 01:49:48,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 01:49:48,442 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 01:49:48,442 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 01:49:48,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 01:49:48,442 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 01:49:48,442 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 01:49:48,443 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 01:49:48,443 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 01:49:48,443 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 01:49:48,443 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 01:49:48,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 01:49:48,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 01:49:48,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 01:49:48,682 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 01:49:48,682 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 01:49:48,684 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2023-03-31 01:49:49,869 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 01:49:50,370 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 01:49:50,371 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2023-03-31 01:49:50,424 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2768e63a/9b4d3bd0b81e4fb99f758fa222049f24/FLAG1bdb2a203 [2023-03-31 01:49:50,435 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2768e63a/9b4d3bd0b81e4fb99f758fa222049f24 [2023-03-31 01:49:50,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 01:49:50,438 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 01:49:50,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 01:49:50,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 01:49:50,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 01:49:50,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:49:50" (1/1) ... [2023-03-31 01:49:50,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c2f8f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:49:50, skipping insertion in model container [2023-03-31 01:49:50,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:49:50" (1/1) ... [2023-03-31 01:49:50,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 01:49:50,680 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 01:49:51,096 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[20004,20017] [2023-03-31 01:49:52,207 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:49:52,234 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 01:49:52,299 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[20004,20017] [2023-03-31 01:49:53,173 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:49:53,204 INFO L208 MainTranslator]: Completed translation [2023-03-31 01:49:53,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:49:53 WrapperNode [2023-03-31 01:49:53,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 01:49:53,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 01:49:53,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 01:49:53,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 01:49:53,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:49:53" (1/1) ... [2023-03-31 01:49:53,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:49:53" (1/1) ... [2023-03-31 01:49:53,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:49:53" (1/1) ... [2023-03-31 01:49:53,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:49:53" (1/1) ... [2023-03-31 01:49:53,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:49:53" (1/1) ... [2023-03-31 01:49:53,474 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:49:53" (1/1) ... [2023-03-31 01:49:53,521 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:49:53" (1/1) ... [2023-03-31 01:49:53,551 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:49:53" (1/1) ... [2023-03-31 01:49:53,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 01:49:53,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 01:49:53,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 01:49:53,611 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 01:49:53,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:49:53" (1/1) ... [2023-03-31 01:49:53,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:49:53,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:49:53,644 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-03-31 01:49:53,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-03-31 01:49:53,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 01:49:53,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 01:49:53,685 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 01:49:53,685 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 01:49:53,685 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 01:49:53,685 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 01:49:53,685 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 01:49:53,685 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 01:49:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 01:49:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-03-31 01:49:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-03-31 01:49:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-03-31 01:49:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 01:49:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-03-31 01:49:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-03-31 01:49:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-03-31 01:49:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-03-31 01:49:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-03-31 01:49:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-03-31 01:49:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-03-31 01:49:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-03-31 01:49:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-03-31 01:49:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 01:49:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 01:49:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 01:49:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 01:49:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 01:49:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 01:49:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 01:49:54,277 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 01:49:54,279 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 01:50:00,238 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 01:50:00,259 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 01:50:00,259 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-03-31 01:50:00,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:50:00 BoogieIcfgContainer [2023-03-31 01:50:00,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 01:50:00,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 01:50:00,268 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 01:50:00,274 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 01:50:00,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 01:49:50" (1/3) ... [2023-03-31 01:50:00,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10b1775c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:50:00, skipping insertion in model container [2023-03-31 01:50:00,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:49:53" (2/3) ... [2023-03-31 01:50:00,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10b1775c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:50:00, skipping insertion in model container [2023-03-31 01:50:00,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:50:00" (3/3) ... [2023-03-31 01:50:00,276 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2023-03-31 01:50:00,293 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 01:50:00,293 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 01:50:00,405 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 01:50:00,412 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@7216eea2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 01:50:00,412 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 01:50:00,427 INFO L276 IsEmpty]: Start isEmpty. Operand has 2880 states, 2874 states have (on average 1.906750173973556) internal successors, (5480), 2875 states have internal predecessors, (5480), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-03-31 01:50:00,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-03-31 01:50:00,465 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:50:00,466 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:50:00,467 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:50:00,473 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:50:00,473 INFO L85 PathProgramCache]: Analyzing trace with hash 213870119, now seen corresponding path program 1 times [2023-03-31 01:50:00,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:50:00,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465805278] [2023-03-31 01:50:00,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:50:00,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:50:01,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:50:08,799 WARN L223 SmtUtils]: Spent 7.19s on a formula simplification that was a NOOP. DAG size: 1513 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-03-31 01:50:08,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:50:08,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:50:08,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:50:08,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:50:08,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465805278] [2023-03-31 01:50:08,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465805278] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:50:08,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:50:08,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-03-31 01:50:08,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640656906] [2023-03-31 01:50:08,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:50:08,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-31 01:50:08,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:50:08,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-31 01:50:08,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-03-31 01:50:08,958 INFO L87 Difference]: Start difference. First operand has 2880 states, 2874 states have (on average 1.906750173973556) internal successors, (5480), 2875 states have internal predecessors, (5480), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 01:50:16,369 WARN L223 SmtUtils]: Spent 7.13s on a formula simplification that was a NOOP. DAG size: 1517 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)