/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-10 22:38:07,944 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 22:38:07,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 22:38:07,991 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 22:38:07,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 22:38:07,994 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 22:38:07,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 22:38:08,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 22:38:08,002 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 22:38:08,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 22:38:08,007 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 22:38:08,008 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 22:38:08,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 22:38:08,010 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 22:38:08,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 22:38:08,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 22:38:08,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 22:38:08,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 22:38:08,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 22:38:08,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 22:38:08,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 22:38:08,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 22:38:08,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 22:38:08,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 22:38:08,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-10 22:38:08,029 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-10 22:38:08,029 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-10 22:38:08,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-10 22:38:08,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-10 22:38:08,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-10 22:38:08,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-10 22:38:08,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-10 22:38:08,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-10 22:38:08,033 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-10 22:38:08,034 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-10 22:38:08,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-10 22:38:08,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-10 22:38:08,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-10 22:38:08,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 22:38:08,036 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 22:38:08,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 22:38:08,037 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-02-10 22:38:08,061 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 22:38:08,062 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 22:38:08,062 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 22:38:08,062 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 22:38:08,063 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 22:38:08,063 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 22:38:08,063 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 22:38:08,064 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 22:38:08,064 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 22:38:08,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 22:38:08,064 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 22:38:08,065 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 22:38:08,065 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 22:38:08,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 22:38:08,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 22:38:08,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 22:38:08,065 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 22:38:08,065 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 22:38:08,065 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 22:38:08,065 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 22:38:08,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 22:38:08,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 22:38:08,066 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 22:38:08,066 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 22:38:08,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 22:38:08,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:38:08,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 22:38:08,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 22:38:08,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 22:38:08,067 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 22:38:08,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 22:38:08,067 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 22:38:08,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 22:38:08,068 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 22:38:08,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 22:38:08,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 22:38:08,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 22:38:08,281 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 22:38:08,282 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 22:38:08,283 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2022-02-10 22:38:08,335 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af1ed27e4/291ca75cf9084be387345c78ba19136e/FLAGbb97941fd [2022-02-10 22:38:08,683 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 22:38:08,684 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2022-02-10 22:38:08,690 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af1ed27e4/291ca75cf9084be387345c78ba19136e/FLAGbb97941fd [2022-02-10 22:38:09,119 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af1ed27e4/291ca75cf9084be387345c78ba19136e [2022-02-10 22:38:09,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 22:38:09,122 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 22:38:09,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 22:38:09,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 22:38:09,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 22:38:09,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:38:09" (1/1) ... [2022-02-10 22:38:09,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@218edfa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:38:09, skipping insertion in model container [2022-02-10 22:38:09,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:38:09" (1/1) ... [2022-02-10 22:38:09,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 22:38:09,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 22:38:09,377 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt2.wvr.c[4174,4187] [2022-02-10 22:38:09,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:38:09,399 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 22:38:09,434 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt2.wvr.c[4174,4187] [2022-02-10 22:38:09,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:38:09,450 INFO L208 MainTranslator]: Completed translation [2022-02-10 22:38:09,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:38:09 WrapperNode [2022-02-10 22:38:09,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 22:38:09,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 22:38:09,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 22:38:09,453 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 22:38:09,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:38:09" (1/1) ... [2022-02-10 22:38:09,476 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:38:09" (1/1) ... [2022-02-10 22:38:09,504 INFO L137 Inliner]: procedures = 26, calls = 75, calls flagged for inlining = 17, calls inlined = 21, statements flattened = 315 [2022-02-10 22:38:09,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 22:38:09,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 22:38:09,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 22:38:09,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 22:38:09,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:38:09" (1/1) ... [2022-02-10 22:38:09,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:38:09" (1/1) ... [2022-02-10 22:38:09,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:38:09" (1/1) ... [2022-02-10 22:38:09,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:38:09" (1/1) ... [2022-02-10 22:38:09,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:38:09" (1/1) ... [2022-02-10 22:38:09,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:38:09" (1/1) ... [2022-02-10 22:38:09,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:38:09" (1/1) ... [2022-02-10 22:38:09,550 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 22:38:09,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 22:38:09,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 22:38:09,551 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 22:38:09,552 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:38:09" (1/1) ... [2022-02-10 22:38:09,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:38:09,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:38:09,587 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) [2022-02-10 22:38:09,591 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 [2022-02-10 22:38:09,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 22:38:09,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 22:38:09,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 22:38:09,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 22:38:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-10 22:38:09,623 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-10 22:38:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-10 22:38:09,623 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-10 22:38:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-10 22:38:09,624 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-10 22:38:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-10 22:38:09,624 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-10 22:38:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 22:38:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-10 22:38:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-10 22:38:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-10 22:38:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 22:38:09,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 22:38:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 22:38:09,639 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 22:38:09,731 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 22:38:09,732 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 22:38:10,104 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 22:38:10,244 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 22:38:10,244 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-02-10 22:38:10,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:38:10 BoogieIcfgContainer [2022-02-10 22:38:10,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 22:38:10,247 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 22:38:10,247 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 22:38:10,251 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 22:38:10,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 10:38:09" (1/3) ... [2022-02-10 22:38:10,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a5c9f1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:38:10, skipping insertion in model container [2022-02-10 22:38:10,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:38:09" (2/3) ... [2022-02-10 22:38:10,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a5c9f1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:38:10, skipping insertion in model container [2022-02-10 22:38:10,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:38:10" (3/3) ... [2022-02-10 22:38:10,253 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-buffer-mult-alt2.wvr.c [2022-02-10 22:38:10,258 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 22:38:10,258 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 22:38:10,258 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 22:38:10,258 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 22:38:10,311 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,311 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,312 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,312 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,312 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,312 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,313 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,313 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,313 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,313 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,313 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,314 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,314 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,314 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~short2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,314 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,314 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,315 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,316 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,316 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,316 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,316 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~short2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,316 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,317 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,317 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,318 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,318 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,319 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,320 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,320 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,320 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,320 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,321 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,321 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,321 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,321 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,322 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,322 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,322 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,322 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,322 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,322 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~short6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,322 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,322 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,323 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,324 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,324 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,324 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,324 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~short6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,324 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,324 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,326 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,326 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,326 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,326 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,327 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,327 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,328 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,328 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,328 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,328 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,328 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,328 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,328 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,329 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,329 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,329 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,329 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,329 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,329 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,329 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,330 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,330 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,332 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,332 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,332 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,332 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,332 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,332 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,332 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,332 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,333 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,333 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,335 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,335 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,336 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,338 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,343 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,343 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,343 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,344 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,345 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,345 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,345 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,345 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,345 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,345 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,345 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,345 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,345 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,346 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,346 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,346 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,346 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,346 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,347 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,347 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,347 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,348 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,348 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,348 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,349 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,349 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,349 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,349 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,350 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,350 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,355 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,355 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,355 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~short6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,355 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,355 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,356 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,356 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,356 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,356 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,357 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,357 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,357 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,357 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,357 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,357 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,357 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,357 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,358 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,358 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,358 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,358 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,358 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,358 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,359 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~short2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,359 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,359 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,359 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,359 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,359 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,359 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,359 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,360 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,360 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,361 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,362 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,362 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,362 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,362 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,363 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,363 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,363 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,363 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,363 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,363 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:38:10,367 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-10 22:38:10,410 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 22:38:10,419 INFO L339 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=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 22:38:10,419 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-10 22:38:10,435 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 239 places, 245 transitions, 522 flow [2022-02-10 22:38:10,926 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 13350 states, 13349 states have (on average 4.983744100681699) internal successors, (66528), 13349 states have internal predecessors, (66528), 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) [2022-02-10 22:38:10,982 INFO L276 IsEmpty]: Start isEmpty. Operand has 13350 states, 13349 states have (on average 4.983744100681699) internal successors, (66528), 13349 states have internal predecessors, (66528), 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) [2022-02-10 22:38:11,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:38:11,124 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:38:11,125 INFO L515 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:38:11,125 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:38:11,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:38:11,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1272815159, now seen corresponding path program 1 times [2022-02-10 22:38:11,137 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:38:11,137 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590482344] [2022-02-10 22:38:11,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:38:11,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:38:11,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:38:11,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:38:11,366 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:38:11,366 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590482344] [2022-02-10 22:38:11,366 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590482344] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:38:11,366 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:38:11,366 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 22:38:11,367 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762920661] [2022-02-10 22:38:11,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:38:11,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 22:38:11,371 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:38:11,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 22:38:11,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 22:38:11,418 INFO L87 Difference]: Start difference. First operand has 13350 states, 13349 states have (on average 4.983744100681699) internal successors, (66528), 13349 states have internal predecessors, (66528), 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 2 states, 2 states have (on average 91.0) internal successors, (182), 2 states have internal predecessors, (182), 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) [2022-02-10 22:38:11,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:38:11,661 INFO L93 Difference]: Finished difference Result 13350 states and 59573 transitions. [2022-02-10 22:38:11,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 22:38:11,665 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 91.0) internal successors, (182), 2 states have internal predecessors, (182), 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 182 [2022-02-10 22:38:11,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:38:11,819 INFO L225 Difference]: With dead ends: 13350 [2022-02-10 22:38:11,819 INFO L226 Difference]: Without dead ends: 13343 [2022-02-10 22:38:11,820 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 22:38:11,824 INFO L934 BasicCegarLoop]: 203 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:38:11,825 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 203 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:38:11,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13343 states. [2022-02-10 22:38:12,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13343 to 13343. [2022-02-10 22:38:12,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13343 states, 13342 states have (on average 4.464548043771549) internal successors, (59566), 13342 states have internal predecessors, (59566), 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) [2022-02-10 22:38:12,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13343 states to 13343 states and 59566 transitions. [2022-02-10 22:38:12,607 INFO L78 Accepts]: Start accepts. Automaton has 13343 states and 59566 transitions. Word has length 182 [2022-02-10 22:38:12,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:38:12,610 INFO L470 AbstractCegarLoop]: Abstraction has 13343 states and 59566 transitions. [2022-02-10 22:38:12,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 91.0) internal successors, (182), 2 states have internal predecessors, (182), 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) [2022-02-10 22:38:12,610 INFO L276 IsEmpty]: Start isEmpty. Operand 13343 states and 59566 transitions. [2022-02-10 22:38:12,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:38:12,662 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:38:12,675 INFO L515 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:38:12,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 22:38:12,676 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:38:12,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:38:12,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1881360903, now seen corresponding path program 1 times [2022-02-10 22:38:12,677 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:38:12,677 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805815472] [2022-02-10 22:38:12,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:38:12,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:38:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:38:13,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:38:13,068 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:38:13,068 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805815472] [2022-02-10 22:38:13,068 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805815472] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:38:13,068 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:38:13,068 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:38:13,069 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979268709] [2022-02-10 22:38:13,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:38:13,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:38:13,070 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:38:13,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:38:13,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:38:13,070 INFO L87 Difference]: Start difference. First operand 13343 states and 59566 transitions. Second operand has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 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) [2022-02-10 22:38:13,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:38:13,596 INFO L93 Difference]: Finished difference Result 23089 states and 103278 transitions. [2022-02-10 22:38:13,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-10 22:38:13,596 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 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 182 [2022-02-10 22:38:13,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:38:13,700 INFO L225 Difference]: With dead ends: 23089 [2022-02-10 22:38:13,700 INFO L226 Difference]: Without dead ends: 19417 [2022-02-10 22:38:13,701 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:38:13,701 INFO L934 BasicCegarLoop]: 219 mSDtfsCounter, 225 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:38:13,702 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 1006 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:38:13,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19417 states. [2022-02-10 22:38:14,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19417 to 16225. [2022-02-10 22:38:14,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16225 states, 16224 states have (on average 4.473742603550296) internal successors, (72582), 16224 states have internal predecessors, (72582), 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) [2022-02-10 22:38:14,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16225 states to 16225 states and 72582 transitions. [2022-02-10 22:38:14,672 INFO L78 Accepts]: Start accepts. Automaton has 16225 states and 72582 transitions. Word has length 182 [2022-02-10 22:38:14,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:38:14,673 INFO L470 AbstractCegarLoop]: Abstraction has 16225 states and 72582 transitions. [2022-02-10 22:38:14,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 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) [2022-02-10 22:38:14,673 INFO L276 IsEmpty]: Start isEmpty. Operand 16225 states and 72582 transitions. [2022-02-10 22:38:14,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-02-10 22:38:14,736 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:38:14,736 INFO L515 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:38:14,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 22:38:14,737 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:38:14,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:38:14,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1998083910, now seen corresponding path program 1 times [2022-02-10 22:38:14,737 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:38:14,737 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962845158] [2022-02-10 22:38:14,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:38:14,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:38:14,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:38:14,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:38:14,928 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:38:14,928 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962845158] [2022-02-10 22:38:14,928 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962845158] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:38:14,928 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:38:14,928 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:38:14,928 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720290794] [2022-02-10 22:38:14,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:38:14,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:38:14,929 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:38:14,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:38:14,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:38:14,929 INFO L87 Difference]: Start difference. First operand 16225 states and 72582 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 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) [2022-02-10 22:38:15,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:38:15,529 INFO L93 Difference]: Finished difference Result 32215 states and 145083 transitions. [2022-02-10 22:38:15,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-10 22:38:15,530 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 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 185 [2022-02-10 22:38:15,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:38:15,908 INFO L225 Difference]: With dead ends: 32215 [2022-02-10 22:38:15,909 INFO L226 Difference]: Without dead ends: 32215 [2022-02-10 22:38:15,909 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:38:15,910 INFO L934 BasicCegarLoop]: 265 mSDtfsCounter, 302 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:38:15,910 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 809 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:38:15,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32215 states. [2022-02-10 22:38:16,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32215 to 17821. [2022-02-10 22:38:16,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17821 states, 17820 states have (on average 4.479629629629629) internal successors, (79827), 17820 states have internal predecessors, (79827), 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) [2022-02-10 22:38:16,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17821 states to 17821 states and 79827 transitions. [2022-02-10 22:38:16,869 INFO L78 Accepts]: Start accepts. Automaton has 17821 states and 79827 transitions. Word has length 185 [2022-02-10 22:38:16,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:38:16,871 INFO L470 AbstractCegarLoop]: Abstraction has 17821 states and 79827 transitions. [2022-02-10 22:38:16,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 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) [2022-02-10 22:38:16,871 INFO L276 IsEmpty]: Start isEmpty. Operand 17821 states and 79827 transitions. [2022-02-10 22:38:16,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-02-10 22:38:16,920 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:38:16,920 INFO L515 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:38:16,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 22:38:16,920 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:38:16,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:38:16,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1902422969, now seen corresponding path program 1 times [2022-02-10 22:38:16,921 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:38:16,921 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573665535] [2022-02-10 22:38:16,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:38:16,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:38:16,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:38:17,064 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:38:17,064 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:38:17,064 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573665535] [2022-02-10 22:38:17,064 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573665535] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:38:17,064 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:38:17,064 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 22:38:17,065 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918377885] [2022-02-10 22:38:17,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:38:17,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 22:38:17,065 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:38:17,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 22:38:17,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:38:17,066 INFO L87 Difference]: Start difference. First operand 17821 states and 79827 transitions. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 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) [2022-02-10 22:38:17,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:38:17,412 INFO L93 Difference]: Finished difference Result 20167 states and 88718 transitions. [2022-02-10 22:38:17,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 22:38:17,413 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 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 188 [2022-02-10 22:38:17,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:38:17,517 INFO L225 Difference]: With dead ends: 20167 [2022-02-10 22:38:17,517 INFO L226 Difference]: Without dead ends: 17827 [2022-02-10 22:38:17,517 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:38:17,518 INFO L934 BasicCegarLoop]: 188 mSDtfsCounter, 149 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:38:17,519 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 675 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:38:17,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17827 states. [2022-02-10 22:38:17,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17827 to 17822. [2022-02-10 22:38:17,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17822 states, 17821 states have (on average 4.479434375175355) internal successors, (79828), 17821 states have internal predecessors, (79828), 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) [2022-02-10 22:38:18,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17822 states to 17822 states and 79828 transitions. [2022-02-10 22:38:18,045 INFO L78 Accepts]: Start accepts. Automaton has 17822 states and 79828 transitions. Word has length 188 [2022-02-10 22:38:18,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:38:18,046 INFO L470 AbstractCegarLoop]: Abstraction has 17822 states and 79828 transitions. [2022-02-10 22:38:18,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 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) [2022-02-10 22:38:18,046 INFO L276 IsEmpty]: Start isEmpty. Operand 17822 states and 79828 transitions. [2022-02-10 22:38:18,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-02-10 22:38:18,238 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:38:18,238 INFO L515 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:38:18,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-10 22:38:18,238 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:38:18,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:38:18,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1626697740, now seen corresponding path program 1 times [2022-02-10 22:38:18,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:38:18,239 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69469772] [2022-02-10 22:38:18,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:38:18,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:38:18,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:38:19,920 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:38:19,920 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:38:19,920 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69469772] [2022-02-10 22:38:19,920 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69469772] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:38:19,920 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847732246] [2022-02-10 22:38:19,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:38:19,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:38:19,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:38:19,922 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) [2022-02-10 22:38:19,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-10 22:38:20,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:38:20,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 63 conjunts are in the unsatisfiable core [2022-02-10 22:38:20,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:38:20,164 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-10 22:38:20,206 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-02-10 22:38:20,206 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-02-10 22:38:20,268 INFO L353 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2022-02-10 22:38:20,268 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 17 treesize of output 30 [2022-02-10 22:38:21,387 INFO L353 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2022-02-10 22:38:21,388 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 43 [2022-02-10 22:38:21,587 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-02-10 22:38:22,565 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-10 22:38:22,913 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-10 22:38:23,064 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-10 22:38:23,208 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-02-10 22:38:23,295 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:38:23,295 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:38:25,815 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:38:25,816 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 49 [2022-02-10 22:38:25,821 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 189 treesize of output 173 [2022-02-10 22:38:25,828 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 128 [2022-02-10 22:38:25,833 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 116 [2022-02-10 22:38:25,838 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 62 [2022-02-10 22:38:27,805 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2022-02-10 22:38:27,845 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:38:27,846 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847732246] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:38:27,846 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:38:27,846 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 27] total 72 [2022-02-10 22:38:27,846 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549685740] [2022-02-10 22:38:27,846 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:38:27,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2022-02-10 22:38:27,847 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:38:27,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2022-02-10 22:38:27,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=322, Invalid=4730, Unknown=60, NotChecked=0, Total=5112 [2022-02-10 22:38:27,849 INFO L87 Difference]: Start difference. First operand 17822 states and 79828 transitions. Second operand has 72 states, 72 states have (on average 6.569444444444445) internal successors, (473), 72 states have internal predecessors, (473), 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) [2022-02-10 22:38:40,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:38:40,049 INFO L93 Difference]: Finished difference Result 168970 states and 763665 transitions. [2022-02-10 22:38:40,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-10 22:38:40,050 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 72 states have (on average 6.569444444444445) internal successors, (473), 72 states have internal predecessors, (473), 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 195 [2022-02-10 22:38:40,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:38:41,280 INFO L225 Difference]: With dead ends: 168970 [2022-02-10 22:38:41,280 INFO L226 Difference]: Without dead ends: 152263 [2022-02-10 22:38:41,283 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 356 SyntacticMatches, 10 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5024 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=2181, Invalid=16323, Unknown=128, NotChecked=0, Total=18632 [2022-02-10 22:38:41,284 INFO L934 BasicCegarLoop]: 327 mSDtfsCounter, 5432 mSDsluCounter, 15571 mSDsCounter, 0 mSdLazyCounter, 3790 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5432 SdHoareTripleChecker+Valid, 14257 SdHoareTripleChecker+Invalid, 6958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 3790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2972 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:38:41,284 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [5432 Valid, 14257 Invalid, 6958 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [196 Valid, 3790 Invalid, 0 Unknown, 2972 Unchecked, 2.3s Time] [2022-02-10 22:38:41,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152263 states. [2022-02-10 22:38:44,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152263 to 47773. [2022-02-10 22:38:44,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47773 states, 47772 states have (on average 4.555848614251025) internal successors, (217642), 47772 states have internal predecessors, (217642), 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) [2022-02-10 22:38:45,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47773 states to 47773 states and 217642 transitions. [2022-02-10 22:38:45,503 INFO L78 Accepts]: Start accepts. Automaton has 47773 states and 217642 transitions. Word has length 195 [2022-02-10 22:38:45,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:38:45,504 INFO L470 AbstractCegarLoop]: Abstraction has 47773 states and 217642 transitions. [2022-02-10 22:38:45,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 6.569444444444445) internal successors, (473), 72 states have internal predecessors, (473), 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) [2022-02-10 22:38:45,505 INFO L276 IsEmpty]: Start isEmpty. Operand 47773 states and 217642 transitions. [2022-02-10 22:38:45,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-02-10 22:38:45,673 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:38:45,673 INFO L515 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:38:45,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-10 22:38:45,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:38:45,890 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:38:45,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:38:45,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1178699188, now seen corresponding path program 2 times [2022-02-10 22:38:45,890 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:38:45,891 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072192595] [2022-02-10 22:38:45,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:38:45,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:38:46,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:38:47,022 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:38:47,022 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:38:47,022 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072192595] [2022-02-10 22:38:47,022 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072192595] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:38:47,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163323932] [2022-02-10 22:38:47,023 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 22:38:47,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:38:47,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:38:47,028 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) [2022-02-10 22:38:47,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-10 22:38:47,157 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 22:38:47,157 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:38:47,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 68 conjunts are in the unsatisfiable core [2022-02-10 22:38:47,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:38:47,269 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-10 22:38:47,305 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-02-10 22:38:47,306 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-02-10 22:38:47,878 INFO L353 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-02-10 22:38:47,879 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 18 [2022-02-10 22:38:48,097 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-02-10 22:38:49,349 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-10 22:38:49,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-10 22:38:49,743 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-10 22:38:49,966 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-10 22:38:50,190 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-10 22:38:50,249 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-02-10 22:38:50,304 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:38:50,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:38:52,588 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:38:52,588 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 52 [2022-02-10 22:38:52,592 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1371 treesize of output 1331 [2022-02-10 22:38:52,600 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1310 treesize of output 1262 [2022-02-10 22:38:52,608 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1262 treesize of output 1070 [2022-02-10 22:38:52,615 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1070 treesize of output 974 [2022-02-10 22:38:52,626 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 512 treesize of output 482 [2022-02-10 22:38:55,874 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2022-02-10 22:38:55,954 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:38:55,955 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163323932] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:38:55,955 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:38:55,955 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 29, 29] total 74 [2022-02-10 22:38:55,955 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316796065] [2022-02-10 22:38:55,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:38:55,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2022-02-10 22:38:55,956 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:38:55,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2022-02-10 22:38:55,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=415, Invalid=4920, Unknown=67, NotChecked=0, Total=5402 [2022-02-10 22:38:55,957 INFO L87 Difference]: Start difference. First operand 47773 states and 217642 transitions. Second operand has 74 states, 74 states have (on average 6.5675675675675675) internal successors, (486), 74 states have internal predecessors, (486), 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) [2022-02-10 22:38:59,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:38:59,301 INFO L93 Difference]: Finished difference Result 72960 states and 331551 transitions. [2022-02-10 22:38:59,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-10 22:38:59,301 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 74 states have (on average 6.5675675675675675) internal successors, (486), 74 states have internal predecessors, (486), 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 195 [2022-02-10 22:38:59,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:38:59,931 INFO L225 Difference]: With dead ends: 72960 [2022-02-10 22:38:59,931 INFO L226 Difference]: Without dead ends: 71217 [2022-02-10 22:38:59,933 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 354 SyntacticMatches, 2 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3634 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=948, Invalid=10165, Unknown=229, NotChecked=0, Total=11342 [2022-02-10 22:38:59,941 INFO L934 BasicCegarLoop]: 246 mSDtfsCounter, 1578 mSDsluCounter, 8253 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1578 SdHoareTripleChecker+Valid, 8105 SdHoareTripleChecker+Invalid, 2393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1316 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-10 22:38:59,942 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1578 Valid, 8105 Invalid, 2393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1031 Invalid, 0 Unknown, 1316 Unchecked, 0.5s Time] [2022-02-10 22:39:00,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71217 states. [2022-02-10 22:39:01,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71217 to 48157. [2022-02-10 22:39:01,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48157 states, 48156 states have (on average 4.539870421131323) internal successors, (218622), 48156 states have internal predecessors, (218622), 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) [2022-02-10 22:39:02,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48157 states to 48157 states and 218622 transitions. [2022-02-10 22:39:02,511 INFO L78 Accepts]: Start accepts. Automaton has 48157 states and 218622 transitions. Word has length 195 [2022-02-10 22:39:02,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:39:02,512 INFO L470 AbstractCegarLoop]: Abstraction has 48157 states and 218622 transitions. [2022-02-10 22:39:02,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 6.5675675675675675) internal successors, (486), 74 states have internal predecessors, (486), 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) [2022-02-10 22:39:02,512 INFO L276 IsEmpty]: Start isEmpty. Operand 48157 states and 218622 transitions. [2022-02-10 22:39:02,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-02-10 22:39:02,723 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:39:02,724 INFO L515 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:39:02,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-10 22:39:02,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-02-10 22:39:02,940 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:39:02,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:39:02,940 INFO L85 PathProgramCache]: Analyzing trace with hash -514407345, now seen corresponding path program 1 times [2022-02-10 22:39:02,940 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:39:02,941 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724789953] [2022-02-10 22:39:02,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:39:02,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:39:02,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:39:03,003 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-10 22:39:03,003 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:39:03,003 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724789953] [2022-02-10 22:39:03,003 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724789953] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:39:03,004 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:39:03,004 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 22:39:03,004 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937874073] [2022-02-10 22:39:03,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:39:03,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 22:39:03,004 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:39:03,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 22:39:03,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:39:03,005 INFO L87 Difference]: Start difference. First operand 48157 states and 218622 transitions. Second operand has 6 states, 6 states have (on average 33.0) internal successors, (198), 6 states have internal predecessors, (198), 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) [2022-02-10 22:39:03,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:39:03,813 INFO L93 Difference]: Finished difference Result 78733 states and 347066 transitions. [2022-02-10 22:39:03,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:39:03,814 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 33.0) internal successors, (198), 6 states have internal predecessors, (198), 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 198 [2022-02-10 22:39:03,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:39:04,394 INFO L225 Difference]: With dead ends: 78733 [2022-02-10 22:39:04,395 INFO L226 Difference]: Without dead ends: 65536 [2022-02-10 22:39:04,395 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-02-10 22:39:04,396 INFO L934 BasicCegarLoop]: 188 mSDtfsCounter, 533 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:39:04,396 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [533 Valid, 603 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:39:04,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65536 states. [2022-02-10 22:39:06,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65536 to 59259. [2022-02-10 22:39:06,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59259 states, 59258 states have (on average 4.461034796989436) internal successors, (264352), 59258 states have internal predecessors, (264352), 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) [2022-02-10 22:39:06,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59259 states to 59259 states and 264352 transitions. [2022-02-10 22:39:06,729 INFO L78 Accepts]: Start accepts. Automaton has 59259 states and 264352 transitions. Word has length 198 [2022-02-10 22:39:06,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:39:06,729 INFO L470 AbstractCegarLoop]: Abstraction has 59259 states and 264352 transitions. [2022-02-10 22:39:06,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 33.0) internal successors, (198), 6 states have internal predecessors, (198), 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) [2022-02-10 22:39:06,729 INFO L276 IsEmpty]: Start isEmpty. Operand 59259 states and 264352 transitions. [2022-02-10 22:39:07,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-02-10 22:39:07,202 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:39:07,202 INFO L515 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:39:07,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-10 22:39:07,202 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:39:07,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:39:07,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1504171924, now seen corresponding path program 3 times [2022-02-10 22:39:07,203 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:39:07,203 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060423882] [2022-02-10 22:39:07,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:39:07,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:39:07,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:39:07,299 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-10 22:39:07,300 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:39:07,300 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060423882] [2022-02-10 22:39:07,300 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060423882] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:39:07,300 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625440908] [2022-02-10 22:39:07,300 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 22:39:07,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:39:07,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:39:07,303 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) [2022-02-10 22:39:07,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-10 22:39:07,476 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-02-10 22:39:07,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:39:07,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-10 22:39:07,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:39:07,817 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-10 22:39:07,817 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:39:08,164 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-10 22:39:08,164 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625440908] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:39:08,164 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:39:08,164 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 19 [2022-02-10 22:39:08,165 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723519093] [2022-02-10 22:39:08,165 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:39:08,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-10 22:39:08,165 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:39:08,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-10 22:39:08,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-02-10 22:39:08,166 INFO L87 Difference]: Start difference. First operand 59259 states and 264352 transitions. Second operand has 19 states, 19 states have (on average 18.57894736842105) internal successors, (353), 19 states have internal predecessors, (353), 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) [2022-02-10 22:39:09,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:39:09,980 INFO L93 Difference]: Finished difference Result 113622 states and 493656 transitions. [2022-02-10 22:39:09,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:39:09,981 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 18.57894736842105) internal successors, (353), 19 states have internal predecessors, (353), 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 201 [2022-02-10 22:39:09,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:39:10,636 INFO L225 Difference]: With dead ends: 113622 [2022-02-10 22:39:10,636 INFO L226 Difference]: Without dead ends: 93249 [2022-02-10 22:39:10,637 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=285, Invalid=1355, Unknown=0, NotChecked=0, Total=1640 [2022-02-10 22:39:10,638 INFO L934 BasicCegarLoop]: 226 mSDtfsCounter, 988 mSDsluCounter, 2911 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 2921 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-10 22:39:10,638 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [988 Valid, 2921 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-10 22:39:11,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93249 states. [2022-02-10 22:39:13,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93249 to 55226. [2022-02-10 22:39:13,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55226 states, 55225 states have (on average 4.407297419646899) internal successors, (243393), 55225 states have internal predecessors, (243393), 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) [2022-02-10 22:39:13,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55226 states to 55226 states and 243393 transitions. [2022-02-10 22:39:13,341 INFO L78 Accepts]: Start accepts. Automaton has 55226 states and 243393 transitions. Word has length 201 [2022-02-10 22:39:13,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:39:13,341 INFO L470 AbstractCegarLoop]: Abstraction has 55226 states and 243393 transitions. [2022-02-10 22:39:13,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 18.57894736842105) internal successors, (353), 19 states have internal predecessors, (353), 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) [2022-02-10 22:39:13,341 INFO L276 IsEmpty]: Start isEmpty. Operand 55226 states and 243393 transitions. [2022-02-10 22:39:13,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-02-10 22:39:13,506 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:39:13,507 INFO L515 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:39:13,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-10 22:39:13,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:39:13,725 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:39:13,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:39:13,725 INFO L85 PathProgramCache]: Analyzing trace with hash -261010253, now seen corresponding path program 4 times [2022-02-10 22:39:13,725 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:39:13,725 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164432867] [2022-02-10 22:39:13,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:39:13,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:39:14,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:39:15,078 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:39:15,078 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:39:15,078 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164432867] [2022-02-10 22:39:15,078 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164432867] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:39:15,078 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949037177] [2022-02-10 22:39:15,078 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-10 22:39:15,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:39:15,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:39:15,080 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) [2022-02-10 22:39:15,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-10 22:39:15,209 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-10 22:39:15,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:39:15,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 55 conjunts are in the unsatisfiable core [2022-02-10 22:39:15,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:39:15,271 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-10 22:39:15,299 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-02-10 22:39:15,300 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-02-10 22:39:15,338 INFO L353 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-02-10 22:39:15,338 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 17 treesize of output 22 [2022-02-10 22:39:15,690 INFO L353 Elim1Store]: treesize reduction 36, result has 26.5 percent of original size [2022-02-10 22:39:15,690 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 21 treesize of output 25 [2022-02-10 22:39:16,729 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-10 22:39:16,839 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-10 22:39:16,926 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-10 22:39:16,969 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-02-10 22:39:17,038 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:39:17,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:39:17,139 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_304 (Array Int Int))) (<= 1 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_304) c_~q1~0.base) (+ (* c_~q1_front~0 4) c_~q1~0.offset)) c_~total~0))) is different from false [2022-02-10 22:39:17,164 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_304 (Array Int Int)) (v_ArrVal_303 (Array Int Int))) (<= 1 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_303) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_304) c_~q1~0.base) (+ (* c_~q1_front~0 4) c_~q1~0.offset)) c_~total~0))) is different from false [2022-02-10 22:39:17,190 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_304 (Array Int Int)) (v_ArrVal_303 (Array Int Int)) (v_ArrVal_302 (Array Int Int))) (<= 1 (+ (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_302) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_303) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_304) c_~q1~0.base) (+ (* c_~q1_front~0 4) c_~q1~0.offset)) c_~total~0))) is different from false [2022-02-10 22:39:17,219 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:39:17,219 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 342 treesize of output 334 [2022-02-10 22:39:17,225 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 314 treesize of output 290 [2022-02-10 22:39:17,228 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 290 treesize of output 242 [2022-02-10 22:39:17,234 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 114 [2022-02-10 22:39:18,809 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-02-10 22:39:18,835 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 2 not checked. [2022-02-10 22:39:18,835 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [949037177] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:39:18,835 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:39:18,836 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 23, 21] total 56 [2022-02-10 22:39:18,836 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693010101] [2022-02-10 22:39:18,836 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:39:18,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-02-10 22:39:18,837 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:39:18,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-02-10 22:39:18,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=2530, Unknown=3, NotChecked=312, Total=3080 [2022-02-10 22:39:18,838 INFO L87 Difference]: Start difference. First operand 55226 states and 243393 transitions. Second operand has 56 states, 56 states have (on average 8.017857142857142) internal successors, (449), 56 states have internal predecessors, (449), 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) [2022-02-10 22:39:26,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:39:26,904 INFO L93 Difference]: Finished difference Result 120069 states and 526546 transitions. [2022-02-10 22:39:26,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-10 22:39:26,905 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 8.017857142857142) internal successors, (449), 56 states have internal predecessors, (449), 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 202 [2022-02-10 22:39:26,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:39:27,861 INFO L225 Difference]: With dead ends: 120069 [2022-02-10 22:39:27,861 INFO L226 Difference]: Without dead ends: 108699 [2022-02-10 22:39:27,865 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 520 GetRequests, 377 SyntacticMatches, 14 SemanticMatches, 129 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 4761 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=2330, Invalid=13935, Unknown=3, NotChecked=762, Total=17030 [2022-02-10 22:39:27,866 INFO L934 BasicCegarLoop]: 302 mSDtfsCounter, 4632 mSDsluCounter, 8558 mSDsCounter, 0 mSdLazyCounter, 3301 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4632 SdHoareTripleChecker+Valid, 8152 SdHoareTripleChecker+Invalid, 5112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 3301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1594 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-02-10 22:39:27,866 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [4632 Valid, 8152 Invalid, 5112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 3301 Invalid, 0 Unknown, 1594 Unchecked, 1.5s Time] [2022-02-10 22:39:28,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108699 states. [2022-02-10 22:39:30,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108699 to 65122. [2022-02-10 22:39:30,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65122 states, 65121 states have (on average 4.475576235008676) internal successors, (291454), 65121 states have internal predecessors, (291454), 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) [2022-02-10 22:39:31,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65122 states to 65122 states and 291454 transitions. [2022-02-10 22:39:31,548 INFO L78 Accepts]: Start accepts. Automaton has 65122 states and 291454 transitions. Word has length 202 [2022-02-10 22:39:31,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:39:31,548 INFO L470 AbstractCegarLoop]: Abstraction has 65122 states and 291454 transitions. [2022-02-10 22:39:31,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 8.017857142857142) internal successors, (449), 56 states have internal predecessors, (449), 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) [2022-02-10 22:39:31,549 INFO L276 IsEmpty]: Start isEmpty. Operand 65122 states and 291454 transitions. [2022-02-10 22:39:31,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-02-10 22:39:31,910 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:39:31,911 INFO L515 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:39:31,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-10 22:39:32,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:39:32,128 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:39:32,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:39:32,128 INFO L85 PathProgramCache]: Analyzing trace with hash 2004726830, now seen corresponding path program 1 times [2022-02-10 22:39:32,129 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:39:32,129 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933723714] [2022-02-10 22:39:32,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:39:32,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:39:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:39:32,255 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-10 22:39:32,255 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:39:32,255 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933723714] [2022-02-10 22:39:32,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933723714] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:39:32,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059440762] [2022-02-10 22:39:32,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:39:32,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:39:32,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:39:32,290 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) [2022-02-10 22:39:32,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-10 22:39:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:39:32,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 6 conjunts are in the unsatisfiable core [2022-02-10 22:39:32,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:39:32,717 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:39:32,717 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 22:39:32,717 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059440762] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:39:32,717 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 22:39:32,717 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2022-02-10 22:39:32,717 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843097519] [2022-02-10 22:39:32,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:39:32,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:39:32,718 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:39:32,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:39:32,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-02-10 22:39:32,718 INFO L87 Difference]: Start difference. First operand 65122 states and 291454 transitions. Second operand has 5 states, 5 states have (on average 41.0) internal successors, (205), 5 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) [2022-02-10 22:39:34,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:39:34,121 INFO L93 Difference]: Finished difference Result 91211 states and 405055 transitions. [2022-02-10 22:39:34,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:39:34,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.0) internal successors, (205), 5 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) Word has length 205 [2022-02-10 22:39:34,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:39:34,765 INFO L225 Difference]: With dead ends: 91211 [2022-02-10 22:39:34,766 INFO L226 Difference]: Without dead ends: 86486 [2022-02-10 22:39:34,766 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-02-10 22:39:34,766 INFO L934 BasicCegarLoop]: 199 mSDtfsCounter, 154 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:39:34,767 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 698 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:39:34,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86486 states. [2022-02-10 22:39:37,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86486 to 70934. [2022-02-10 22:39:37,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70934 states, 70933 states have (on average 4.488954365387055) internal successors, (318415), 70933 states have internal predecessors, (318415), 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) [2022-02-10 22:39:38,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70934 states to 70934 states and 318415 transitions. [2022-02-10 22:39:38,713 INFO L78 Accepts]: Start accepts. Automaton has 70934 states and 318415 transitions. Word has length 205 [2022-02-10 22:39:38,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:39:38,713 INFO L470 AbstractCegarLoop]: Abstraction has 70934 states and 318415 transitions. [2022-02-10 22:39:38,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.0) internal successors, (205), 5 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) [2022-02-10 22:39:38,714 INFO L276 IsEmpty]: Start isEmpty. Operand 70934 states and 318415 transitions. [2022-02-10 22:39:38,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-02-10 22:39:38,926 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:39:38,926 INFO L515 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:39:38,942 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-10 22:39:39,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-02-10 22:39:39,140 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:39:39,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:39:39,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1867267043, now seen corresponding path program 1 times [2022-02-10 22:39:39,140 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:39:39,140 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177448295] [2022-02-10 22:39:39,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:39:39,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:39:39,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:39:39,441 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-10 22:39:39,441 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:39:39,441 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177448295] [2022-02-10 22:39:39,441 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177448295] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:39:39,441 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819576499] [2022-02-10 22:39:39,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:39:39,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:39:39,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:39:39,444 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) [2022-02-10 22:39:39,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-10 22:39:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:39:39,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 21 conjunts are in the unsatisfiable core [2022-02-10 22:39:39,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:39:40,735 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-10 22:39:40,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:39:41,529 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:39:41,529 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819576499] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:39:41,529 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:39:41,529 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 15] total 34 [2022-02-10 22:39:41,529 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56060809] [2022-02-10 22:39:41,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:39:41,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-02-10 22:39:41,530 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:39:41,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-02-10 22:39:41,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=963, Unknown=0, NotChecked=0, Total=1122 [2022-02-10 22:39:41,531 INFO L87 Difference]: Start difference. First operand 70934 states and 318415 transitions. Second operand has 34 states, 34 states have (on average 15.382352941176471) internal successors, (523), 34 states have internal predecessors, (523), 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) [2022-02-10 22:39:52,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:39:52,516 INFO L93 Difference]: Finished difference Result 423156 states and 1882778 transitions. [2022-02-10 22:39:52,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-02-10 22:39:52,517 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 15.382352941176471) internal successors, (523), 34 states have internal predecessors, (523), 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 208 [2022-02-10 22:39:52,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:39:56,272 INFO L225 Difference]: With dead ends: 423156 [2022-02-10 22:39:56,273 INFO L226 Difference]: Without dead ends: 363211 [2022-02-10 22:39:56,274 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 394 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8249 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=3688, Invalid=18662, Unknown=0, NotChecked=0, Total=22350 [2022-02-10 22:39:56,274 INFO L934 BasicCegarLoop]: 521 mSDtfsCounter, 3643 mSDsluCounter, 7500 mSDsCounter, 0 mSdLazyCounter, 3401 mSolverCounterSat, 313 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3643 SdHoareTripleChecker+Valid, 7167 SdHoareTripleChecker+Invalid, 3714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 313 IncrementalHoareTripleChecker+Valid, 3401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:39:56,274 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3643 Valid, 7167 Invalid, 3714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [313 Valid, 3401 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-02-10 22:39:57,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363211 states. [2022-02-10 22:40:06,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363211 to 102365. [2022-02-10 22:40:06,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102365 states, 102364 states have (on average 4.620120354812238) internal successors, (472934), 102364 states have internal predecessors, (472934), 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) [2022-02-10 22:40:07,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102365 states to 102365 states and 472934 transitions. [2022-02-10 22:40:07,186 INFO L78 Accepts]: Start accepts. Automaton has 102365 states and 472934 transitions. Word has length 208 [2022-02-10 22:40:07,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:40:07,186 INFO L470 AbstractCegarLoop]: Abstraction has 102365 states and 472934 transitions. [2022-02-10 22:40:07,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 15.382352941176471) internal successors, (523), 34 states have internal predecessors, (523), 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) [2022-02-10 22:40:07,187 INFO L276 IsEmpty]: Start isEmpty. Operand 102365 states and 472934 transitions. [2022-02-10 22:40:07,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-02-10 22:40:07,560 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:40:07,560 INFO L515 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:40:07,578 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-10 22:40:07,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:40:07,771 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:40:07,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:40:07,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1443983687, now seen corresponding path program 2 times [2022-02-10 22:40:07,772 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:40:07,772 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918551360] [2022-02-10 22:40:07,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:40:07,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:40:07,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:40:08,271 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-10 22:40:08,271 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:40:08,271 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918551360] [2022-02-10 22:40:08,271 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918551360] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:40:08,271 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076970125] [2022-02-10 22:40:08,271 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 22:40:08,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:40:08,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:40:08,273 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:40:08,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-10 22:40:08,414 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 22:40:08,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:40:08,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 21 conjunts are in the unsatisfiable core [2022-02-10 22:40:08,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:40:09,295 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-10 22:40:09,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:40:10,126 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:40:10,127 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076970125] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:40:10,127 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:40:10,127 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14, 15] total 35 [2022-02-10 22:40:10,127 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817185363] [2022-02-10 22:40:10,127 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:40:10,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-02-10 22:40:10,128 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:40:10,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-02-10 22:40:10,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=1028, Unknown=0, NotChecked=0, Total=1190 [2022-02-10 22:40:10,129 INFO L87 Difference]: Start difference. First operand 102365 states and 472934 transitions. Second operand has 35 states, 35 states have (on average 15.057142857142857) internal successors, (527), 35 states have internal predecessors, (527), 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) [2022-02-10 22:40:18,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:40:18,704 INFO L93 Difference]: Finished difference Result 196463 states and 872538 transitions. [2022-02-10 22:40:18,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-02-10 22:40:18,706 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 15.057142857142857) internal successors, (527), 35 states have internal predecessors, (527), 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 208 [2022-02-10 22:40:18,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted.