./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-examples/standard_copy8_ground-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-examples/standard_copy8_ground-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 675f35e66fa59545cd4a52408711c9386973ccbbb0528c29e7af26cf7aa65f50 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 09:11:52,423 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 09:11:52,425 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 09:11:52,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 09:11:52,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 09:11:52,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 09:11:52,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 09:11:52,457 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 09:11:52,459 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 09:11:52,459 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 09:11:52,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 09:11:52,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 09:11:52,466 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 09:11:52,467 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 09:11:52,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 09:11:52,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 09:11:52,471 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 09:11:52,472 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 09:11:52,473 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 09:11:52,476 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 09:11:52,479 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 09:11:52,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 09:11:52,482 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 09:11:52,482 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 09:11:52,486 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 09:11:52,487 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 09:11:52,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 09:11:52,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 09:11:52,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 09:11:52,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 09:11:52,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 09:11:52,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 09:11:52,493 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 09:11:52,494 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 09:11:52,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 09:11:52,495 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 09:11:52,495 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 09:11:52,495 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 09:11:52,495 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 09:11:52,496 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 09:11:52,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 09:11:52,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 09:11:52,506 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 09:11:52,520 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 09:11:52,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 09:11:52,520 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 09:11:52,520 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 09:11:52,521 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 09:11:52,521 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 09:11:52,522 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 09:11:52,522 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 09:11:52,522 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 09:11:52,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 09:11:52,522 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 09:11:52,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 09:11:52,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 09:11:52,523 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 09:11:52,523 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 09:11:52,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 09:11:52,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 09:11:52,523 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 09:11:52,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 09:11:52,524 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 09:11:52,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 09:11:52,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 09:11:52,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 09:11:52,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 09:11:52,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 09:11:52,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 09:11:52,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 09:11:52,525 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 09:11:52,525 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 09:11:52,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 09:11:52,525 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 09:11:52,526 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 09:11:52,526 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 09:11:52,526 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 675f35e66fa59545cd4a52408711c9386973ccbbb0528c29e7af26cf7aa65f50 [2022-07-22 09:11:52,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 09:11:52,687 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 09:11:52,689 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 09:11:52,690 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 09:11:52,691 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 09:11:52,692 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/standard_copy8_ground-2.i [2022-07-22 09:11:52,742 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eba9453f8/1d6de8482ea84563977678b2612aa84c/FLAGe790b6120 [2022-07-22 09:11:53,110 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 09:11:53,111 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_copy8_ground-2.i [2022-07-22 09:11:53,122 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eba9453f8/1d6de8482ea84563977678b2612aa84c/FLAGe790b6120 [2022-07-22 09:11:53,131 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eba9453f8/1d6de8482ea84563977678b2612aa84c [2022-07-22 09:11:53,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 09:11:53,135 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 09:11:53,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 09:11:53,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 09:11:53,139 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 09:11:53,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 09:11:53" (1/1) ... [2022-07-22 09:11:53,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4178400c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:11:53, skipping insertion in model container [2022-07-22 09:11:53,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 09:11:53" (1/1) ... [2022-07-22 09:11:53,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 09:11:53,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 09:11:53,282 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_copy8_ground-2.i[816,829] [2022-07-22 09:11:53,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 09:11:53,312 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 09:11:53,320 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_copy8_ground-2.i[816,829] [2022-07-22 09:11:53,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 09:11:53,338 INFO L208 MainTranslator]: Completed translation [2022-07-22 09:11:53,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:11:53 WrapperNode [2022-07-22 09:11:53,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 09:11:53,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 09:11:53,340 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 09:11:53,340 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 09:11:53,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:11:53" (1/1) ... [2022-07-22 09:11:53,350 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:11:53" (1/1) ... [2022-07-22 09:11:53,366 INFO L137 Inliner]: procedures = 16, calls = 54, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 179 [2022-07-22 09:11:53,367 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 09:11:53,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 09:11:53,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 09:11:53,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 09:11:53,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:11:53" (1/1) ... [2022-07-22 09:11:53,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:11:53" (1/1) ... [2022-07-22 09:11:53,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:11:53" (1/1) ... [2022-07-22 09:11:53,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:11:53" (1/1) ... [2022-07-22 09:11:53,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:11:53" (1/1) ... [2022-07-22 09:11:53,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:11:53" (1/1) ... [2022-07-22 09:11:53,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:11:53" (1/1) ... [2022-07-22 09:11:53,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 09:11:53,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 09:11:53,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 09:11:53,391 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 09:11:53,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:11:53" (1/1) ... [2022-07-22 09:11:53,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 09:11:53,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 09:11:53,425 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) [2022-07-22 09:11:53,432 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 [2022-07-22 09:11:53,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 09:11:53,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 09:11:53,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 09:11:53,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 09:11:53,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 09:11:53,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 09:11:53,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 09:11:53,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 09:11:53,514 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 09:11:53,516 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 09:11:53,729 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 09:11:53,734 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 09:11:53,734 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2022-07-22 09:11:53,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 09:11:53 BoogieIcfgContainer [2022-07-22 09:11:53,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 09:11:53,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 09:11:53,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 09:11:53,740 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 09:11:53,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 09:11:53" (1/3) ... [2022-07-22 09:11:53,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce4e06d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 09:11:53, skipping insertion in model container [2022-07-22 09:11:53,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:11:53" (2/3) ... [2022-07-22 09:11:53,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce4e06d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 09:11:53, skipping insertion in model container [2022-07-22 09:11:53,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 09:11:53" (3/3) ... [2022-07-22 09:11:53,743 INFO L111 eAbstractionObserver]: Analyzing ICFG standard_copy8_ground-2.i [2022-07-22 09:11:53,756 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 09:11:53,756 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 09:11:53,798 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 09:11:53,804 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@31427, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4d2dbafc [2022-07-22 09:11:53,804 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 09:11:53,807 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 37 states have (on average 1.5945945945945945) internal successors, (59), 38 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:11:53,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-22 09:11:53,813 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 09:11:53,813 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] [2022-07-22 09:11:53,814 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 09:11:53,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 09:11:53,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1852783825, now seen corresponding path program 1 times [2022-07-22 09:11:53,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 09:11:53,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771964033] [2022-07-22 09:11:53,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 09:11:53,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 09:11:53,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 09:11:54,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 09:11:54,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 09:11:54,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771964033] [2022-07-22 09:11:54,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771964033] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 09:11:54,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 09:11:54,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 09:11:54,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927732606] [2022-07-22 09:11:54,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 09:11:54,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 09:11:54,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 09:11:54,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 09:11:54,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 09:11:54,074 INFO L87 Difference]: Start difference. First operand has 39 states, 37 states have (on average 1.5945945945945945) internal successors, (59), 38 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:11:54,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 09:11:54,108 INFO L93 Difference]: Finished difference Result 76 states and 116 transitions. [2022-07-22 09:11:54,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 09:11:54,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-07-22 09:11:54,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 09:11:54,117 INFO L225 Difference]: With dead ends: 76 [2022-07-22 09:11:54,118 INFO L226 Difference]: Without dead ends: 37 [2022-07-22 09:11:54,121 INFO L412 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 [2022-07-22 09:11:54,124 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 1 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 09:11:54,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 90 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 09:11:54,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-07-22 09:11:54,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2022-07-22 09:11:54,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 35 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:11:54,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 45 transitions. [2022-07-22 09:11:54,163 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 45 transitions. Word has length 23 [2022-07-22 09:11:54,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 09:11:54,164 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 45 transitions. [2022-07-22 09:11:54,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:11:54,164 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 45 transitions. [2022-07-22 09:11:54,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-22 09:11:54,166 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 09:11:54,166 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] [2022-07-22 09:11:54,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 09:11:54,167 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 09:11:54,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 09:11:54,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1595357053, now seen corresponding path program 1 times [2022-07-22 09:11:54,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 09:11:54,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037316345] [2022-07-22 09:11:54,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 09:11:54,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 09:11:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 09:11:54,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 09:11:54,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 09:11:54,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037316345] [2022-07-22 09:11:54,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037316345] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 09:11:54,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411240831] [2022-07-22 09:11:54,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 09:11:54,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 09:11:54,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 09:11:54,265 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 09:11:54,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 09:11:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 09:11:54,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 09:11:54,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 09:11:54,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 09:11:54,420 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 09:11:54,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411240831] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 09:11:54,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 09:11:54,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-22 09:11:54,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146546416] [2022-07-22 09:11:54,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 09:11:54,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 09:11:54,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 09:11:54,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 09:11:54,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-22 09:11:54,425 INFO L87 Difference]: Start difference. First operand 36 states and 45 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:11:54,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 09:11:54,499 INFO L93 Difference]: Finished difference Result 80 states and 104 transitions. [2022-07-22 09:11:54,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 09:11:54,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-07-22 09:11:54,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 09:11:54,502 INFO L225 Difference]: With dead ends: 80 [2022-07-22 09:11:54,504 INFO L226 Difference]: Without dead ends: 52 [2022-07-22 09:11:54,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-22 09:11:54,507 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 8 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 09:11:54,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 39 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 09:11:54,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-07-22 09:11:54,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 44. [2022-07-22 09:11:54,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.2325581395348837) internal successors, (53), 43 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:11:54,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2022-07-22 09:11:54,519 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 25 [2022-07-22 09:11:54,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 09:11:54,522 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2022-07-22 09:11:54,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:11:54,522 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2022-07-22 09:11:54,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-22 09:11:54,523 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 09:11:54,523 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] [2022-07-22 09:11:54,542 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-22 09:11:54,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 09:11:54,731 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 09:11:54,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 09:11:54,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1558845843, now seen corresponding path program 1 times [2022-07-22 09:11:54,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 09:11:54,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614998609] [2022-07-22 09:11:54,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 09:11:54,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 09:11:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 09:11:54,807 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-07-22 09:11:54,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 09:11:54,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614998609] [2022-07-22 09:11:54,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614998609] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 09:11:54,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996235553] [2022-07-22 09:11:54,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 09:11:54,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 09:11:54,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 09:11:54,810 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 09:11:54,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 09:11:54,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 09:11:54,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 09:11:54,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 09:11:54,953 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-07-22 09:11:54,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 09:11:54,982 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-07-22 09:11:54,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996235553] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 09:11:54,982 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 09:11:54,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-07-22 09:11:54,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264513695] [2022-07-22 09:11:54,983 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 09:11:54,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 09:11:54,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 09:11:54,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 09:11:54,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-22 09:11:54,985 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:11:55,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 09:11:55,029 INFO L93 Difference]: Finished difference Result 89 states and 109 transitions. [2022-07-22 09:11:55,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 09:11:55,030 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-07-22 09:11:55,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 09:11:55,030 INFO L225 Difference]: With dead ends: 89 [2022-07-22 09:11:55,030 INFO L226 Difference]: Without dead ends: 50 [2022-07-22 09:11:55,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-22 09:11:55,031 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 4 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 09:11:55,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 122 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 09:11:55,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-07-22 09:11:55,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-07-22 09:11:55,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.2040816326530612) internal successors, (59), 49 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:11:55,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2022-07-22 09:11:55,044 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 41 [2022-07-22 09:11:55,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 09:11:55,045 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions. [2022-07-22 09:11:55,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:11:55,046 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions. [2022-07-22 09:11:55,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-22 09:11:55,049 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 09:11:55,050 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 09:11:55,068 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-07-22 09:11:55,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-22 09:11:55,255 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 09:11:55,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 09:11:55,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1467949145, now seen corresponding path program 2 times [2022-07-22 09:11:55,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 09:11:55,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345660635] [2022-07-22 09:11:55,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 09:11:55,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 09:11:55,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 09:11:55,338 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-22 09:11:55,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 09:11:55,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345660635] [2022-07-22 09:11:55,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345660635] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 09:11:55,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599308844] [2022-07-22 09:11:55,340 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 09:11:55,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 09:11:55,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 09:11:55,346 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 09:11:55,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 09:11:55,466 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 09:11:55,466 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 09:11:55,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 09:11:55,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 09:11:55,494 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-22 09:11:55,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 09:11:55,518 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-22 09:11:55,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599308844] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 09:11:55,520 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 09:11:55,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-07-22 09:11:55,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237862813] [2022-07-22 09:11:55,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 09:11:55,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 09:11:55,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 09:11:55,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 09:11:55,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-22 09:11:55,522 INFO L87 Difference]: Start difference. First operand 50 states and 59 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:11:55,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 09:11:55,634 INFO L93 Difference]: Finished difference Result 133 states and 173 transitions. [2022-07-22 09:11:55,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 09:11:55,635 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-07-22 09:11:55,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 09:11:55,636 INFO L225 Difference]: With dead ends: 133 [2022-07-22 09:11:55,636 INFO L226 Difference]: Without dead ends: 98 [2022-07-22 09:11:55,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-22 09:11:55,637 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 62 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 09:11:55,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 39 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 09:11:55,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-07-22 09:11:55,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-07-22 09:11:55,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 1.1030927835051547) internal successors, (107), 97 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:11:55,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 107 transitions. [2022-07-22 09:11:55,644 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 107 transitions. Word has length 47 [2022-07-22 09:11:55,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 09:11:55,644 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 107 transitions. [2022-07-22 09:11:55,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:11:55,645 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 107 transitions. [2022-07-22 09:11:55,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-22 09:11:55,646 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 09:11:55,646 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 09:11:55,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-22 09:11:55,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 09:11:55,864 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 09:11:55,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 09:11:55,865 INFO L85 PathProgramCache]: Analyzing trace with hash -68874121, now seen corresponding path program 3 times [2022-07-22 09:11:55,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 09:11:55,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191146467] [2022-07-22 09:11:55,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 09:11:55,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 09:11:55,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 09:11:56,007 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2022-07-22 09:11:56,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 09:11:56,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191146467] [2022-07-22 09:11:56,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191146467] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 09:11:56,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597559934] [2022-07-22 09:11:56,008 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-22 09:11:56,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 09:11:56,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 09:11:56,012 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 09:11:56,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-22 09:11:57,359 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-07-22 09:11:57,359 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 09:11:57,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 09:11:57,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 09:11:57,405 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2022-07-22 09:11:57,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 09:11:57,466 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2022-07-22 09:11:57,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597559934] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 09:11:57,466 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 09:11:57,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2022-07-22 09:11:57,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602364244] [2022-07-22 09:11:57,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 09:11:57,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-22 09:11:57,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 09:11:57,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-22 09:11:57,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2022-07-22 09:11:57,468 INFO L87 Difference]: Start difference. First operand 98 states and 107 transitions. Second operand has 17 states, 17 states have (on average 5.352941176470588) internal successors, (91), 17 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:11:57,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 09:11:57,750 INFO L93 Difference]: Finished difference Result 284 states and 350 transitions. [2022-07-22 09:11:57,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-22 09:11:57,750 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.352941176470588) internal successors, (91), 17 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-07-22 09:11:57,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 09:11:57,752 INFO L225 Difference]: With dead ends: 284 [2022-07-22 09:11:57,752 INFO L226 Difference]: Without dead ends: 197 [2022-07-22 09:11:57,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2022-07-22 09:11:57,753 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 188 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 09:11:57,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 92 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 09:11:57,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-07-22 09:11:57,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 196. [2022-07-22 09:11:57,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 195 states have (on average 1.0512820512820513) internal successors, (205), 195 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:11:57,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 205 transitions. [2022-07-22 09:11:57,776 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 205 transitions. Word has length 95 [2022-07-22 09:11:57,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 09:11:57,777 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 205 transitions. [2022-07-22 09:11:57,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.352941176470588) internal successors, (91), 17 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:11:57,777 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 205 transitions. [2022-07-22 09:11:57,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-07-22 09:11:57,780 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 09:11:57,780 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 09:11:57,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-22 09:11:57,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 09:11:57,987 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 09:11:57,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 09:11:57,988 INFO L85 PathProgramCache]: Analyzing trace with hash -2083175211, now seen corresponding path program 4 times [2022-07-22 09:11:57,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 09:11:57,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722642194] [2022-07-22 09:11:57,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 09:11:57,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 09:11:58,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 09:11:58,151 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2022-07-22 09:11:58,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 09:11:58,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722642194] [2022-07-22 09:11:58,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722642194] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 09:11:58,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584969278] [2022-07-22 09:11:58,152 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-22 09:11:58,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 09:11:58,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 09:11:58,153 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 09:11:58,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-22 09:11:58,404 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-22 09:11:58,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 09:11:58,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 871 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 09:11:58,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 09:11:58,432 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2022-07-22 09:11:58,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 09:11:58,502 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2022-07-22 09:11:58,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584969278] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 09:11:58,503 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 09:11:58,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-07-22 09:11:58,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991678777] [2022-07-22 09:11:58,503 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 09:11:58,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-22 09:11:58,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 09:11:58,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-22 09:11:58,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2022-07-22 09:11:58,505 INFO L87 Difference]: Start difference. First operand 196 states and 205 transitions. Second operand has 15 states, 15 states have (on average 4.266666666666667) internal successors, (64), 15 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:11:58,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 09:11:58,540 INFO L93 Difference]: Finished difference Result 393 states and 417 transitions. [2022-07-22 09:11:58,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 09:11:58,541 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.266666666666667) internal successors, (64), 15 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-07-22 09:11:58,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 09:11:58,542 INFO L225 Difference]: With dead ends: 393 [2022-07-22 09:11:58,542 INFO L226 Difference]: Without dead ends: 210 [2022-07-22 09:11:58,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2022-07-22 09:11:58,543 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 18 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 09:11:58,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 82 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 09:11:58,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-07-22 09:11:58,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2022-07-22 09:11:58,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 209 states have (on average 1.0478468899521531) internal successors, (219), 209 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:11:58,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 219 transitions. [2022-07-22 09:11:58,554 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 219 transitions. Word has length 193 [2022-07-22 09:11:58,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 09:11:58,554 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 219 transitions. [2022-07-22 09:11:58,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.266666666666667) internal successors, (64), 15 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 09:11:58,555 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 219 transitions. [2022-07-22 09:11:58,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-07-22 09:11:58,556 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 09:11:58,557 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 09:11:58,578 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-22 09:11:58,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 09:11:58,767 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 09:11:58,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 09:11:58,768 INFO L85 PathProgramCache]: Analyzing trace with hash 934123015, now seen corresponding path program 5 times [2022-07-22 09:11:58,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 09:11:58,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397356583] [2022-07-22 09:11:58,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 09:11:58,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 09:11:58,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 09:11:58,942 INFO L134 CoverageAnalysis]: Checked inductivity of 944 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2022-07-22 09:11:58,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 09:11:58,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397356583] [2022-07-22 09:11:58,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397356583] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 09:11:58,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328780464] [2022-07-22 09:11:58,944 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-22 09:11:58,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 09:11:58,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 09:11:58,945 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 09:11:58,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process