/usr/bin/java -Xmx16000000000 -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-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 09:52:12,958 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 09:52:12,959 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 09:52:13,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 09:52:13,018 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 09:52:13,019 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 09:52:13,020 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 09:52:13,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 09:52:13,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 09:52:13,027 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 09:52:13,028 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 09:52:13,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 09:52:13,029 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 09:52:13,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 09:52:13,030 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 09:52:13,031 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 09:52:13,032 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 09:52:13,032 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 09:52:13,034 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 09:52:13,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 09:52:13,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 09:52:13,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 09:52:13,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 09:52:13,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 09:52:13,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 09:52:13,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 09:52:13,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 09:52:13,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 09:52:13,069 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-Separate.epf [2022-01-18 09:52:13,101 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 09:52:13,102 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 09:52:13,102 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 09:52:13,102 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 09:52:13,103 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 09:52:13,103 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 09:52:13,104 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 09:52:13,104 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 09:52:13,104 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 09:52:13,104 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 09:52:13,105 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 09:52:13,105 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 09:52:13,105 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 09:52:13,105 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 09:52:13,105 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 09:52:13,105 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 09:52:13,105 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 09:52:13,105 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 09:52:13,106 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 09:52:13,106 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 09:52:13,106 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 09:52:13,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 09:52:13,106 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 09:52:13,106 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 09:52:13,107 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 09:52:13,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 09:52:13,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 09:52:13,108 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 09:52:13,108 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 09:52:13,108 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 09:52:13,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 09:52:13,108 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 09:52:13,108 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 09:52:13,108 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 09:52:13,109 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 09:52:13,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 09:52:13,340 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 09:52:13,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 09:52:13,343 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 09:52:13,344 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 09:52:13,345 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i [2022-01-18 09:52:13,402 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7fe1bb2c/63adfb44e6ec49f7ade574a48d0668f6/FLAGde8fc2424 [2022-01-18 09:52:13,867 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 09:52:13,867 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i [2022-01-18 09:52:13,879 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7fe1bb2c/63adfb44e6ec49f7ade574a48d0668f6/FLAGde8fc2424 [2022-01-18 09:52:13,890 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7fe1bb2c/63adfb44e6ec49f7ade574a48d0668f6 [2022-01-18 09:52:13,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 09:52:13,893 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 09:52:13,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 09:52:13,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 09:52:13,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 09:52:13,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 09:52:13" (1/1) ... [2022-01-18 09:52:13,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34ae9804 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:52:13, skipping insertion in model container [2022-01-18 09:52:13,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 09:52:13" (1/1) ... [2022-01-18 09:52:13,904 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 09:52:13,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 09:52:14,214 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i[30035,30048] [2022-01-18 09:52:14,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 09:52:14,237 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 09:52:14,273 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i[30035,30048] [2022-01-18 09:52:14,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 09:52:14,313 INFO L208 MainTranslator]: Completed translation [2022-01-18 09:52:14,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:52:14 WrapperNode [2022-01-18 09:52:14,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 09:52:14,315 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 09:52:14,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 09:52:14,315 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 09:52:14,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:52:14" (1/1) ... [2022-01-18 09:52:14,346 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:52:14" (1/1) ... [2022-01-18 09:52:14,368 INFO L137 Inliner]: procedures = 170, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 60 [2022-01-18 09:52:14,368 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 09:52:14,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 09:52:14,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 09:52:14,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 09:52:14,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:52:14" (1/1) ... [2022-01-18 09:52:14,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:52:14" (1/1) ... [2022-01-18 09:52:14,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:52:14" (1/1) ... [2022-01-18 09:52:14,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:52:14" (1/1) ... [2022-01-18 09:52:14,395 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:52:14" (1/1) ... [2022-01-18 09:52:14,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:52:14" (1/1) ... [2022-01-18 09:52:14,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:52:14" (1/1) ... [2022-01-18 09:52:14,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 09:52:14,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 09:52:14,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 09:52:14,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 09:52:14,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:52:14" (1/1) ... [2022-01-18 09:52:14,414 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 09:52:14,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:52:14,436 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) [2022-01-18 09:52:14,461 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 [2022-01-18 09:52:14,474 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-01-18 09:52:14,474 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-01-18 09:52:14,474 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-01-18 09:52:14,475 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-01-18 09:52:14,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 09:52:14,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 09:52:14,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 09:52:14,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 09:52:14,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 09:52:14,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 09:52:14,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 09:52:14,476 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 09:52:14,588 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 09:52:14,589 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 09:52:14,740 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 09:52:14,746 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 09:52:14,746 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-18 09:52:14,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 09:52:14 BoogieIcfgContainer [2022-01-18 09:52:14,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 09:52:14,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 09:52:14,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 09:52:14,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 09:52:14,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 09:52:13" (1/3) ... [2022-01-18 09:52:14,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b782ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 09:52:14, skipping insertion in model container [2022-01-18 09:52:14,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:52:14" (2/3) ... [2022-01-18 09:52:14,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b782ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 09:52:14, skipping insertion in model container [2022-01-18 09:52:14,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 09:52:14" (3/3) ... [2022-01-18 09:52:14,760 INFO L111 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-1.i [2022-01-18 09:52:14,764 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 09:52:14,764 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 09:52:14,764 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 09:52:14,764 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 09:52:14,809 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,809 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,809 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,810 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,810 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,810 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,810 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,811 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,811 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,811 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,811 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,812 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,812 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,813 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,815 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,815 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,815 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,815 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,816 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,816 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,816 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,816 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,816 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,817 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,817 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,817 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,817 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,818 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,818 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,818 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,818 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,818 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,819 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,819 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,822 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,822 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,822 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,822 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,822 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,824 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,825 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,825 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,825 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,825 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,825 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:14,826 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 09:52:14,873 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 09:52:14,878 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 [2022-01-18 09:52:14,878 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-18 09:52:14,893 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 80 places, 77 transitions, 164 flow [2022-01-18 09:52:14,988 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1130 states, 1127 states have (on average 2.5714285714285716) internal successors, (2898), 1129 states have internal predecessors, (2898), 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) [2022-01-18 09:52:14,992 INFO L276 IsEmpty]: Start isEmpty. Operand has 1130 states, 1127 states have (on average 2.5714285714285716) internal successors, (2898), 1129 states have internal predecessors, (2898), 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) [2022-01-18 09:52:15,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-18 09:52:15,000 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:52:15,000 INFO L514 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] [2022-01-18 09:52:15,001 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 09:52:15,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:52:15,009 INFO L85 PathProgramCache]: Analyzing trace with hash 25235032, now seen corresponding path program 1 times [2022-01-18 09:52:15,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:52:15,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046767630] [2022-01-18 09:52:15,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:52:15,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:52:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:52:15,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:52:15,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:52:15,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046767630] [2022-01-18 09:52:15,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046767630] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:52:15,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:52:15,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 09:52:15,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180723741] [2022-01-18 09:52:15,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:52:15,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 09:52:15,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:52:15,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 09:52:15,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-01-18 09:52:15,498 INFO L87 Difference]: Start difference. First operand has 1130 states, 1127 states have (on average 2.5714285714285716) internal successors, (2898), 1129 states have internal predecessors, (2898), 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 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 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) [2022-01-18 09:52:15,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:52:15,740 INFO L93 Difference]: Finished difference Result 1056 states and 2555 transitions. [2022-01-18 09:52:15,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 09:52:15,747 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 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 40 [2022-01-18 09:52:15,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:52:15,767 INFO L225 Difference]: With dead ends: 1056 [2022-01-18 09:52:15,767 INFO L226 Difference]: Without dead ends: 617 [2022-01-18 09:52:15,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-01-18 09:52:15,773 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 199 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:52:15,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 484 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:52:15,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2022-01-18 09:52:15,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 617. [2022-01-18 09:52:15,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 615 states have (on average 2.3495934959349594) internal successors, (1445), 616 states have internal predecessors, (1445), 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) [2022-01-18 09:52:15,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 1445 transitions. [2022-01-18 09:52:15,861 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 1445 transitions. Word has length 40 [2022-01-18 09:52:15,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:52:15,864 INFO L470 AbstractCegarLoop]: Abstraction has 617 states and 1445 transitions. [2022-01-18 09:52:15,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 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) [2022-01-18 09:52:15,869 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 1445 transitions. [2022-01-18 09:52:15,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-18 09:52:15,871 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:52:15,871 INFO L514 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] [2022-01-18 09:52:15,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 09:52:15,872 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 09:52:15,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:52:15,872 INFO L85 PathProgramCache]: Analyzing trace with hash -268015655, now seen corresponding path program 1 times [2022-01-18 09:52:15,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:52:15,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511433935] [2022-01-18 09:52:15,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:52:15,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:52:15,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:52:16,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:52:16,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:52:16,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511433935] [2022-01-18 09:52:16,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511433935] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:52:16,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:52:16,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 09:52:16,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111725544] [2022-01-18 09:52:16,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:52:16,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 09:52:16,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:52:16,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 09:52:16,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-01-18 09:52:16,199 INFO L87 Difference]: Start difference. First operand 617 states and 1445 transitions. Second operand has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 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) [2022-01-18 09:52:16,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:52:16,382 INFO L93 Difference]: Finished difference Result 537 states and 1249 transitions. [2022-01-18 09:52:16,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 09:52:16,382 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 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 52 [2022-01-18 09:52:16,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:52:16,383 INFO L225 Difference]: With dead ends: 537 [2022-01-18 09:52:16,383 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 09:52:16,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2022-01-18 09:52:16,385 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 222 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:52:16,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 580 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:52:16,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 09:52:16,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 09:52:16,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:52:16,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 09:52:16,387 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 52 [2022-01-18 09:52:16,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:52:16,387 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 09:52:16,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 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) [2022-01-18 09:52:16,387 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 09:52:16,387 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 09:52:16,390 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-18 09:52:16,390 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-18 09:52:16,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 09:52:16,393 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-18 09:52:16,394 INFO L308 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE (1/2) [2022-01-18 09:52:16,398 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-18 09:52:16,398 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 [2022-01-18 09:52:16,399 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-18 09:52:16,400 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 80 places, 77 transitions, 164 flow [2022-01-18 09:52:16,421 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 922 states, 920 states have (on average 2.607608695652174) internal successors, (2399), 921 states have internal predecessors, (2399), 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) [2022-01-18 09:52:16,423 INFO L276 IsEmpty]: Start isEmpty. Operand has 922 states, 920 states have (on average 2.607608695652174) internal successors, (2399), 921 states have internal predecessors, (2399), 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) [2022-01-18 09:52:16,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-18 09:52:16,427 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:52:16,427 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 09:52:16,428 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 09:52:16,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:52:16,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1080909318, now seen corresponding path program 1 times [2022-01-18 09:52:16,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:52:16,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664195411] [2022-01-18 09:52:16,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:52:16,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:52:16,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 09:52:16,451 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 09:52:16,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 09:52:16,487 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 09:52:16,487 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 09:52:16,487 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 2 remaining) [2022-01-18 09:52:16,488 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-01-18 09:52:16,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 09:52:16,488 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-18 09:52:16,489 INFO L308 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (2/2) [2022-01-18 09:52:16,489 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-18 09:52:16,489 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-01-18 09:52:16,501 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,501 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,501 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,501 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,502 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,502 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,502 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,502 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,502 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,502 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,502 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,503 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,503 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,503 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,503 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,503 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,503 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,503 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,503 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,504 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,504 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,504 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,504 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,504 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,504 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,504 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,504 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,505 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,505 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,505 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,505 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,505 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,505 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,506 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,506 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,506 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,506 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,506 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,506 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,506 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,506 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,507 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,507 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,507 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,507 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,507 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,507 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,507 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,508 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,508 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,508 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,508 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,508 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,508 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,509 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,509 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,509 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,509 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,509 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,509 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,510 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,510 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,510 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,510 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,510 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,510 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,510 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,510 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,511 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,511 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,511 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,511 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,511 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,512 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,512 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,512 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,512 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,512 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,513 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,513 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,513 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,513 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,513 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,513 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,514 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,514 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,514 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,514 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,514 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,514 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:16,515 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 09:52:16,520 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 09:52:16,523 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 [2022-01-18 09:52:16,523 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-18 09:52:16,529 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 102 places, 96 transitions, 216 flow [2022-01-18 09:52:16,778 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6842 states, 6838 states have (on average 3.3951447791751974) internal successors, (23216), 6841 states have internal predecessors, (23216), 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) [2022-01-18 09:52:16,798 INFO L276 IsEmpty]: Start isEmpty. Operand has 6842 states, 6838 states have (on average 3.3951447791751974) internal successors, (23216), 6841 states have internal predecessors, (23216), 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) [2022-01-18 09:52:16,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-18 09:52:16,799 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:52:16,800 INFO L514 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] [2022-01-18 09:52:16,800 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 09:52:16,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:52:16,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1995614165, now seen corresponding path program 1 times [2022-01-18 09:52:16,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:52:16,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393115621] [2022-01-18 09:52:16,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:52:16,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:52:16,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:52:16,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:52:16,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:52:16,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393115621] [2022-01-18 09:52:16,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393115621] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:52:16,939 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:52:16,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 09:52:16,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079563319] [2022-01-18 09:52:16,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:52:16,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 09:52:16,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:52:16,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 09:52:16,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-01-18 09:52:16,961 INFO L87 Difference]: Start difference. First operand has 6842 states, 6838 states have (on average 3.3951447791751974) internal successors, (23216), 6841 states have internal predecessors, (23216), 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 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 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) [2022-01-18 09:52:17,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:52:17,203 INFO L93 Difference]: Finished difference Result 7330 states and 23686 transitions. [2022-01-18 09:52:17,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 09:52:17,204 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 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 40 [2022-01-18 09:52:17,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:52:17,240 INFO L225 Difference]: With dead ends: 7330 [2022-01-18 09:52:17,240 INFO L226 Difference]: Without dead ends: 4749 [2022-01-18 09:52:17,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-01-18 09:52:17,242 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 283 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:52:17,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [283 Valid, 541 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:52:17,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4749 states. [2022-01-18 09:52:17,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4749 to 4749. [2022-01-18 09:52:17,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4749 states, 4746 states have (on average 3.2016434892541086) internal successors, (15195), 4748 states have internal predecessors, (15195), 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) [2022-01-18 09:52:17,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4749 states to 4749 states and 15195 transitions. [2022-01-18 09:52:17,388 INFO L78 Accepts]: Start accepts. Automaton has 4749 states and 15195 transitions. Word has length 40 [2022-01-18 09:52:17,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:52:17,388 INFO L470 AbstractCegarLoop]: Abstraction has 4749 states and 15195 transitions. [2022-01-18 09:52:17,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 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) [2022-01-18 09:52:17,389 INFO L276 IsEmpty]: Start isEmpty. Operand 4749 states and 15195 transitions. [2022-01-18 09:52:17,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-18 09:52:17,389 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:52:17,390 INFO L514 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] [2022-01-18 09:52:17,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 09:52:17,390 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 09:52:17,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:52:17,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1923437499, now seen corresponding path program 1 times [2022-01-18 09:52:17,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:52:17,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086476573] [2022-01-18 09:52:17,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:52:17,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:52:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:52:17,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:52:17,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:52:17,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086476573] [2022-01-18 09:52:17,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086476573] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:52:17,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:52:17,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 09:52:17,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980691497] [2022-01-18 09:52:17,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:52:17,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 09:52:17,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:52:17,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 09:52:17,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-01-18 09:52:17,588 INFO L87 Difference]: Start difference. First operand 4749 states and 15195 transitions. Second operand has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 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) [2022-01-18 09:52:17,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:52:17,833 INFO L93 Difference]: Finished difference Result 6433 states and 19837 transitions. [2022-01-18 09:52:17,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 09:52:17,833 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 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 52 [2022-01-18 09:52:17,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:52:17,864 INFO L225 Difference]: With dead ends: 6433 [2022-01-18 09:52:17,864 INFO L226 Difference]: Without dead ends: 4957 [2022-01-18 09:52:17,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:52:17,865 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 342 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:52:17,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 881 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:52:17,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4957 states. [2022-01-18 09:52:18,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4957 to 3717. [2022-01-18 09:52:18,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3717 states, 3715 states have (on average 3.1895020188425303) internal successors, (11849), 3716 states have internal predecessors, (11849), 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) [2022-01-18 09:52:18,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3717 states to 3717 states and 11849 transitions. [2022-01-18 09:52:18,133 INFO L78 Accepts]: Start accepts. Automaton has 3717 states and 11849 transitions. Word has length 52 [2022-01-18 09:52:18,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:52:18,134 INFO L470 AbstractCegarLoop]: Abstraction has 3717 states and 11849 transitions. [2022-01-18 09:52:18,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 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) [2022-01-18 09:52:18,134 INFO L276 IsEmpty]: Start isEmpty. Operand 3717 states and 11849 transitions. [2022-01-18 09:52:18,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-18 09:52:18,137 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:52:18,137 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 09:52:18,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 09:52:18,137 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 09:52:18,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:52:18,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1656183590, now seen corresponding path program 1 times [2022-01-18 09:52:18,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:52:18,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897071455] [2022-01-18 09:52:18,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:52:18,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:52:18,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:52:18,246 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:52:18,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:52:18,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897071455] [2022-01-18 09:52:18,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897071455] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:52:18,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338864476] [2022-01-18 09:52:18,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:52:18,247 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:52:18,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:52:18,249 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) [2022-01-18 09:52:18,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 09:52:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:52:18,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-18 09:52:18,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:52:18,670 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:52:18,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:52:18,860 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:52:18,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338864476] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:52:18,861 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:52:18,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 25 [2022-01-18 09:52:18,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217183043] [2022-01-18 09:52:18,862 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:52:18,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 09:52:18,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:52:18,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 09:52:18,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=512, Unknown=0, NotChecked=0, Total=600 [2022-01-18 09:52:18,863 INFO L87 Difference]: Start difference. First operand 3717 states and 11849 transitions. Second operand has 25 states, 25 states have (on average 4.96) internal successors, (124), 25 states have internal predecessors, (124), 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) [2022-01-18 09:52:19,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:52:19,885 INFO L93 Difference]: Finished difference Result 6389 states and 19625 transitions. [2022-01-18 09:52:19,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:52:19,885 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.96) internal successors, (124), 25 states have internal predecessors, (124), 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 62 [2022-01-18 09:52:19,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:52:19,908 INFO L225 Difference]: With dead ends: 6389 [2022-01-18 09:52:19,908 INFO L226 Difference]: Without dead ends: 3953 [2022-01-18 09:52:19,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 108 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 771 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=537, Invalid=2219, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 09:52:19,910 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 659 mSDsluCounter, 2593 mSDsCounter, 0 mSdLazyCounter, 886 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 2783 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:52:19,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [659 Valid, 2783 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 886 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:52:19,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3953 states. [2022-01-18 09:52:20,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3953 to 2737. [2022-01-18 09:52:20,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2737 states, 2735 states have (on average 3.0925045703839125) internal successors, (8458), 2736 states have internal predecessors, (8458), 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) [2022-01-18 09:52:20,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2737 states to 2737 states and 8458 transitions. [2022-01-18 09:52:20,028 INFO L78 Accepts]: Start accepts. Automaton has 2737 states and 8458 transitions. Word has length 62 [2022-01-18 09:52:20,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:52:20,029 INFO L470 AbstractCegarLoop]: Abstraction has 2737 states and 8458 transitions. [2022-01-18 09:52:20,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.96) internal successors, (124), 25 states have internal predecessors, (124), 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) [2022-01-18 09:52:20,029 INFO L276 IsEmpty]: Start isEmpty. Operand 2737 states and 8458 transitions. [2022-01-18 09:52:20,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-18 09:52:20,035 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:52:20,035 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 09:52:20,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-18 09:52:20,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-01-18 09:52:20,252 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 09:52:20,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:52:20,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1766749656, now seen corresponding path program 1 times [2022-01-18 09:52:20,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:52:20,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832500315] [2022-01-18 09:52:20,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:52:20,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:52:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:52:20,429 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 09:52:20,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:52:20,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832500315] [2022-01-18 09:52:20,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832500315] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:52:20,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:52:20,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-18 09:52:20,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123322689] [2022-01-18 09:52:20,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:52:20,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 09:52:20,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:52:20,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 09:52:20,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-01-18 09:52:20,432 INFO L87 Difference]: Start difference. First operand 2737 states and 8458 transitions. Second operand has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 13 states have internal predecessors, (62), 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) [2022-01-18 09:52:20,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:52:20,656 INFO L93 Difference]: Finished difference Result 3217 states and 9794 transitions. [2022-01-18 09:52:20,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 09:52:20,657 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 13 states have internal predecessors, (62), 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 66 [2022-01-18 09:52:20,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:52:20,680 INFO L225 Difference]: With dead ends: 3217 [2022-01-18 09:52:20,681 INFO L226 Difference]: Without dead ends: 2077 [2022-01-18 09:52:20,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2022-01-18 09:52:20,682 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 397 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:52:20,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [397 Valid, 997 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:52:20,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2077 states. [2022-01-18 09:52:20,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2077 to 2077. [2022-01-18 09:52:20,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2077 states, 2075 states have (on average 2.9836144578313255) internal successors, (6191), 2076 states have internal predecessors, (6191), 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) [2022-01-18 09:52:20,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2077 states to 2077 states and 6191 transitions. [2022-01-18 09:52:20,738 INFO L78 Accepts]: Start accepts. Automaton has 2077 states and 6191 transitions. Word has length 66 [2022-01-18 09:52:20,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:52:20,739 INFO L470 AbstractCegarLoop]: Abstraction has 2077 states and 6191 transitions. [2022-01-18 09:52:20,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 13 states have internal predecessors, (62), 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) [2022-01-18 09:52:20,739 INFO L276 IsEmpty]: Start isEmpty. Operand 2077 states and 6191 transitions. [2022-01-18 09:52:20,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-18 09:52:20,742 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:52:20,742 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 09:52:20,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 09:52:20,743 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 09:52:20,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:52:20,744 INFO L85 PathProgramCache]: Analyzing trace with hash -333662760, now seen corresponding path program 2 times [2022-01-18 09:52:20,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:52:20,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513921305] [2022-01-18 09:52:20,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:52:20,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:52:20,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:52:20,950 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 09:52:20,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:52:20,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513921305] [2022-01-18 09:52:20,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513921305] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:52:20,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:52:20,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 09:52:20,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909499384] [2022-01-18 09:52:20,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:52:20,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 09:52:20,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:52:20,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 09:52:20,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-01-18 09:52:20,952 INFO L87 Difference]: Start difference. First operand 2077 states and 6191 transitions. Second operand has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 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) [2022-01-18 09:52:21,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:52:21,151 INFO L93 Difference]: Finished difference Result 1917 states and 5719 transitions. [2022-01-18 09:52:21,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 09:52:21,151 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 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 66 [2022-01-18 09:52:21,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:52:21,152 INFO L225 Difference]: With dead ends: 1917 [2022-01-18 09:52:21,152 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 09:52:21,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2022-01-18 09:52:21,152 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 359 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:52:21,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 918 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:52:21,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 09:52:21,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 09:52:21,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:52:21,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 09:52:21,153 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 66 [2022-01-18 09:52:21,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:52:21,154 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 09:52:21,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 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) [2022-01-18 09:52:21,154 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 09:52:21,154 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 09:52:21,154 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-18 09:52:21,154 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-01-18 09:52:21,154 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-18 09:52:21,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 09:52:21,155 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2022-01-18 09:52:21,155 INFO L308 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE (1/2) [2022-01-18 09:52:21,156 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-18 09:52:21,156 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 [2022-01-18 09:52:21,156 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-18 09:52:21,157 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 102 places, 96 transitions, 216 flow [2022-01-18 09:52:21,291 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5602 states, 5600 states have (on average 3.439107142857143) internal successors, (19259), 5601 states have internal predecessors, (19259), 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) [2022-01-18 09:52:21,302 INFO L276 IsEmpty]: Start isEmpty. Operand has 5602 states, 5600 states have (on average 3.439107142857143) internal successors, (19259), 5601 states have internal predecessors, (19259), 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) [2022-01-18 09:52:21,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-18 09:52:21,309 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:52:21,309 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-01-18 09:52:21,309 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 09:52:21,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:52:21,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1541547493, now seen corresponding path program 1 times [2022-01-18 09:52:21,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:52:21,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550693047] [2022-01-18 09:52:21,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:52:21,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:52:21,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 09:52:21,322 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 09:52:21,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 09:52:21,339 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 09:52:21,339 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 09:52:21,339 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 2 remaining) [2022-01-18 09:52:21,339 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-01-18 09:52:21,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 09:52:21,340 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-18 09:52:21,340 INFO L308 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (2/2) [2022-01-18 09:52:21,340 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-18 09:52:21,340 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-01-18 09:52:21,356 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,357 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,357 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,357 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,357 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,357 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,357 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,357 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,357 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,357 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,358 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,358 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,358 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,358 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,358 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,358 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,358 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,358 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,359 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,359 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,359 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,359 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,359 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,359 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,359 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,359 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,359 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,360 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,360 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,360 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,360 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,360 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,360 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,360 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,360 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,360 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,361 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,361 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,361 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,361 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,361 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,361 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,361 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,362 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,362 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,362 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,362 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,362 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,362 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,362 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,362 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,362 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,363 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,363 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,363 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,363 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,363 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,363 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,363 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,363 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,363 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,363 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,364 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,364 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,364 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,364 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,364 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,364 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,364 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,364 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,364 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,365 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,365 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,365 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,365 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,365 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,365 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,365 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,365 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,365 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,365 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,366 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,366 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,366 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,366 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,366 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,366 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,366 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,366 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,366 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,367 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,367 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,367 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,367 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,367 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,367 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,367 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,367 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,367 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,368 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,368 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,368 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,368 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,368 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,368 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,368 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,368 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,369 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,369 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,369 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,369 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,369 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,369 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,369 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,370 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,370 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,370 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,370 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,370 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,370 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,370 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,370 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,372 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,372 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:21,373 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 09:52:21,376 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 09:52:21,376 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 [2022-01-18 09:52:21,377 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-18 09:52:21,378 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 124 places, 115 transitions, 272 flow [2022-01-18 09:52:22,730 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 41114 states, 41109 states have (on average 4.22496290350045) internal successors, (173684), 41113 states have internal predecessors, (173684), 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) [2022-01-18 09:52:22,796 INFO L276 IsEmpty]: Start isEmpty. Operand has 41114 states, 41109 states have (on average 4.22496290350045) internal successors, (173684), 41113 states have internal predecessors, (173684), 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) [2022-01-18 09:52:22,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-18 09:52:22,797 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:52:22,797 INFO L514 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] [2022-01-18 09:52:22,797 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 09:52:22,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:52:22,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1038200074, now seen corresponding path program 1 times [2022-01-18 09:52:22,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:52:22,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615515191] [2022-01-18 09:52:22,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:52:22,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:52:22,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:52:22,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:52:22,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:52:22,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615515191] [2022-01-18 09:52:22,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615515191] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:52:22,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:52:22,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 09:52:22,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428166367] [2022-01-18 09:52:22,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:52:22,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 09:52:22,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:52:22,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 09:52:22,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-01-18 09:52:23,005 INFO L87 Difference]: Start difference. First operand has 41114 states, 41109 states have (on average 4.22496290350045) internal successors, (173684), 41113 states have internal predecessors, (173684), 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 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 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) [2022-01-18 09:52:23,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:52:23,864 INFO L93 Difference]: Finished difference Result 48134 states and 195350 transitions. [2022-01-18 09:52:23,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 09:52:23,865 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 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 40 [2022-01-18 09:52:23,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:52:24,170 INFO L225 Difference]: With dead ends: 48134 [2022-01-18 09:52:24,171 INFO L226 Difference]: Without dead ends: 32701 [2022-01-18 09:52:24,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-01-18 09:52:24,172 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 304 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:52:24,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [304 Valid, 689 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:52:24,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32701 states. [2022-01-18 09:52:25,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32701 to 32701. [2022-01-18 09:52:25,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32701 states, 32697 states have (on average 4.052206624460959) internal successors, (132495), 32700 states have internal predecessors, (132495), 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) [2022-01-18 09:52:25,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32701 states to 32701 states and 132495 transitions. [2022-01-18 09:52:25,684 INFO L78 Accepts]: Start accepts. Automaton has 32701 states and 132495 transitions. Word has length 40 [2022-01-18 09:52:25,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:52:25,685 INFO L470 AbstractCegarLoop]: Abstraction has 32701 states and 132495 transitions. [2022-01-18 09:52:25,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 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) [2022-01-18 09:52:25,685 INFO L276 IsEmpty]: Start isEmpty. Operand 32701 states and 132495 transitions. [2022-01-18 09:52:25,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-18 09:52:25,686 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:52:25,686 INFO L514 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] [2022-01-18 09:52:25,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 09:52:25,686 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 09:52:25,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:52:25,687 INFO L85 PathProgramCache]: Analyzing trace with hash 2136059723, now seen corresponding path program 1 times [2022-01-18 09:52:25,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:52:25,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338711533] [2022-01-18 09:52:25,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:52:25,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:52:25,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:52:25,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:52:25,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:52:25,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338711533] [2022-01-18 09:52:25,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338711533] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:52:25,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:52:25,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 09:52:25,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587357568] [2022-01-18 09:52:25,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:52:25,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 09:52:25,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:52:25,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 09:52:25,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 09:52:25,823 INFO L87 Difference]: Start difference. First operand 32701 states and 132495 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 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) [2022-01-18 09:52:26,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:52:26,559 INFO L93 Difference]: Finished difference Result 53817 states and 209363 transitions. [2022-01-18 09:52:26,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 09:52:26,559 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 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 52 [2022-01-18 09:52:26,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:52:27,061 INFO L225 Difference]: With dead ends: 53817 [2022-01-18 09:52:27,061 INFO L226 Difference]: Without dead ends: 45321 [2022-01-18 09:52:27,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:52:27,064 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 426 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:52:27,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 894 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:52:27,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45321 states. [2022-01-18 09:52:28,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45321 to 31743. [2022-01-18 09:52:28,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31743 states, 31740 states have (on average 4.010838059231254) internal successors, (127304), 31742 states have internal predecessors, (127304), 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) [2022-01-18 09:52:28,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31743 states to 31743 states and 127304 transitions. [2022-01-18 09:52:28,406 INFO L78 Accepts]: Start accepts. Automaton has 31743 states and 127304 transitions. Word has length 52 [2022-01-18 09:52:28,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:52:28,406 INFO L470 AbstractCegarLoop]: Abstraction has 31743 states and 127304 transitions. [2022-01-18 09:52:28,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 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) [2022-01-18 09:52:28,407 INFO L276 IsEmpty]: Start isEmpty. Operand 31743 states and 127304 transitions. [2022-01-18 09:52:28,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-18 09:52:28,410 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:52:28,410 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 09:52:28,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 09:52:28,410 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 09:52:28,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:52:28,411 INFO L85 PathProgramCache]: Analyzing trace with hash 959637017, now seen corresponding path program 1 times [2022-01-18 09:52:28,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:52:28,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083094737] [2022-01-18 09:52:28,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:52:28,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:52:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:52:28,521 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:52:28,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:52:28,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083094737] [2022-01-18 09:52:28,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083094737] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:52:28,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126165212] [2022-01-18 09:52:28,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:52:28,522 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:52:28,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:52:28,523 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) [2022-01-18 09:52:28,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 09:52:28,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:52:28,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-18 09:52:28,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:52:28,881 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:52:28,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:52:29,063 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:52:29,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126165212] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:52:29,064 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:52:29,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 25 [2022-01-18 09:52:29,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494412281] [2022-01-18 09:52:29,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:52:29,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 09:52:29,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:52:29,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 09:52:29,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=512, Unknown=0, NotChecked=0, Total=600 [2022-01-18 09:52:29,066 INFO L87 Difference]: Start difference. First operand 31743 states and 127304 transitions. Second operand has 25 states, 25 states have (on average 5.0) internal successors, (125), 25 states have internal predecessors, (125), 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) [2022-01-18 09:52:30,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:52:30,660 INFO L93 Difference]: Finished difference Result 64845 states and 252605 transitions. [2022-01-18 09:52:30,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 09:52:30,661 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.0) internal successors, (125), 25 states have internal predecessors, (125), 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 62 [2022-01-18 09:52:30,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:52:30,940 INFO L225 Difference]: With dead ends: 64845 [2022-01-18 09:52:30,940 INFO L226 Difference]: Without dead ends: 49680 [2022-01-18 09:52:30,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 108 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 856 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=619, Invalid=2461, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:52:30,942 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 1343 mSDsluCounter, 1852 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1343 SdHoareTripleChecker+Valid, 2060 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:52:30,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1343 Valid, 2060 Invalid, 811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:52:31,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49680 states. [2022-01-18 09:52:32,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49680 to 30042. [2022-01-18 09:52:32,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30042 states, 30039 states have (on average 3.9519291587602785) internal successors, (118712), 30041 states have internal predecessors, (118712), 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) [2022-01-18 09:52:32,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30042 states to 30042 states and 118712 transitions. [2022-01-18 09:52:32,221 INFO L78 Accepts]: Start accepts. Automaton has 30042 states and 118712 transitions. Word has length 62 [2022-01-18 09:52:32,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:52:32,221 INFO L470 AbstractCegarLoop]: Abstraction has 30042 states and 118712 transitions. [2022-01-18 09:52:32,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.0) internal successors, (125), 25 states have internal predecessors, (125), 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) [2022-01-18 09:52:32,221 INFO L276 IsEmpty]: Start isEmpty. Operand 30042 states and 118712 transitions. [2022-01-18 09:52:32,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-18 09:52:32,227 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:52:32,227 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 09:52:32,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-18 09:52:32,427 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,SelfDestructingSolverStorable11 [2022-01-18 09:52:32,427 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 09:52:32,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:52:32,428 INFO L85 PathProgramCache]: Analyzing trace with hash -331179881, now seen corresponding path program 1 times [2022-01-18 09:52:32,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:52:32,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723618063] [2022-01-18 09:52:32,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:52:32,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:52:32,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:52:32,634 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:52:32,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:52:32,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723618063] [2022-01-18 09:52:32,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723618063] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:52:32,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962039364] [2022-01-18 09:52:32,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:52:32,635 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:52:32,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:52:32,636 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) [2022-01-18 09:52:32,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-18 09:52:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:52:32,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-18 09:52:32,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:52:33,483 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:52:33,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:52:33,723 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:52:33,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962039364] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:52:33,723 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:52:33,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 31 [2022-01-18 09:52:33,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429343038] [2022-01-18 09:52:33,723 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:52:33,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:52:33,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:52:33,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:52:33,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=790, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:52:33,725 INFO L87 Difference]: Start difference. First operand 30042 states and 118712 transitions. Second operand has 31 states, 31 states have (on average 4.935483870967742) internal successors, (153), 31 states have internal predecessors, (153), 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) [2022-01-18 09:52:34,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:52:34,852 INFO L93 Difference]: Finished difference Result 59466 states and 223678 transitions. [2022-01-18 09:52:34,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 09:52:34,852 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.935483870967742) internal successors, (153), 31 states have internal predecessors, (153), 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 66 [2022-01-18 09:52:34,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:52:35,354 INFO L225 Difference]: With dead ends: 59466 [2022-01-18 09:52:35,354 INFO L226 Difference]: Without dead ends: 51237 [2022-01-18 09:52:35,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 113 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 715 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=537, Invalid=2219, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 09:52:35,355 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 1646 mSDsluCounter, 3168 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1646 SdHoareTripleChecker+Valid, 3290 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:52:35,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1646 Valid, 3290 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:52:35,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51237 states. [2022-01-18 09:52:36,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51237 to 23517. [2022-01-18 09:52:36,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23517 states, 23515 states have (on average 4.002253880501807) internal successors, (94113), 23516 states have internal predecessors, (94113), 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) [2022-01-18 09:52:36,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23517 states to 23517 states and 94113 transitions. [2022-01-18 09:52:36,568 INFO L78 Accepts]: Start accepts. Automaton has 23517 states and 94113 transitions. Word has length 66 [2022-01-18 09:52:36,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:52:36,568 INFO L470 AbstractCegarLoop]: Abstraction has 23517 states and 94113 transitions. [2022-01-18 09:52:36,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.935483870967742) internal successors, (153), 31 states have internal predecessors, (153), 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) [2022-01-18 09:52:36,569 INFO L276 IsEmpty]: Start isEmpty. Operand 23517 states and 94113 transitions. [2022-01-18 09:52:36,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-18 09:52:36,608 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:52:36,608 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-01-18 09:52:36,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-18 09:52:36,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:52:36,826 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 09:52:36,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:52:36,827 INFO L85 PathProgramCache]: Analyzing trace with hash -146451322, now seen corresponding path program 1 times [2022-01-18 09:52:36,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:52:36,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193351802] [2022-01-18 09:52:36,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:52:36,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:52:36,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:52:36,962 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:52:36,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:52:36,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193351802] [2022-01-18 09:52:36,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193351802] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:52:36,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106692320] [2022-01-18 09:52:36,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:52:36,963 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:52:36,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:52:36,964 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) [2022-01-18 09:52:36,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-18 09:52:37,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:52:37,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 12 conjunts are in the unsatisfiable core [2022-01-18 09:52:37,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:52:37,375 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:52:37,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:52:37,594 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:52:37,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106692320] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:52:37,595 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:52:37,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 32 [2022-01-18 09:52:37,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447639661] [2022-01-18 09:52:37,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:52:37,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-18 09:52:37,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:52:37,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-18 09:52:37,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=840, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:52:37,597 INFO L87 Difference]: Start difference. First operand 23517 states and 94113 transitions. Second operand has 32 states, 32 states have (on average 5.34375) internal successors, (171), 32 states have internal predecessors, (171), 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) [2022-01-18 09:52:38,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:52:38,448 INFO L93 Difference]: Finished difference Result 40373 states and 154477 transitions. [2022-01-18 09:52:38,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 09:52:38,449 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 5.34375) internal successors, (171), 32 states have internal predecessors, (171), 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 72 [2022-01-18 09:52:38,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:52:38,539 INFO L225 Difference]: With dead ends: 40373 [2022-01-18 09:52:38,539 INFO L226 Difference]: Without dead ends: 30521 [2022-01-18 09:52:38,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 123 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 860 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=571, Invalid=2399, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:52:38,541 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 1184 mSDsluCounter, 2471 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 2659 SdHoareTripleChecker+Invalid, 1021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:52:38,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1184 Valid, 2659 Invalid, 1021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:52:38,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30521 states. [2022-01-18 09:52:39,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30521 to 22297. [2022-01-18 09:52:39,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22297 states, 22295 states have (on average 3.8902893025342005) internal successors, (86734), 22296 states have internal predecessors, (86734), 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) [2022-01-18 09:52:39,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22297 states to 22297 states and 86734 transitions. [2022-01-18 09:52:39,307 INFO L78 Accepts]: Start accepts. Automaton has 22297 states and 86734 transitions. Word has length 72 [2022-01-18 09:52:39,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:52:39,307 INFO L470 AbstractCegarLoop]: Abstraction has 22297 states and 86734 transitions. [2022-01-18 09:52:39,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 5.34375) internal successors, (171), 32 states have internal predecessors, (171), 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) [2022-01-18 09:52:39,308 INFO L276 IsEmpty]: Start isEmpty. Operand 22297 states and 86734 transitions. [2022-01-18 09:52:39,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-18 09:52:39,331 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:52:39,331 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-01-18 09:52:39,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-18 09:52:39,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:52:39,535 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 09:52:39,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:52:39,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1334935164, now seen corresponding path program 1 times [2022-01-18 09:52:39,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:52:39,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393979748] [2022-01-18 09:52:39,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:52:39,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:52:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:52:39,690 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:52:39,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:52:39,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393979748] [2022-01-18 09:52:39,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393979748] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:52:39,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663142709] [2022-01-18 09:52:39,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:52:39,691 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:52:39,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:52:39,692 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) [2022-01-18 09:52:39,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-18 09:52:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:52:39,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 14 conjunts are in the unsatisfiable core [2022-01-18 09:52:39,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:52:40,116 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:52:40,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:52:40,296 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-18 09:52:40,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663142709] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:52:40,296 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:52:40,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 14] total 31 [2022-01-18 09:52:40,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512640300] [2022-01-18 09:52:40,297 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:52:40,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:52:40,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:52:40,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:52:40,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=827, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:52:40,298 INFO L87 Difference]: Start difference. First operand 22297 states and 86734 transitions. Second operand has 31 states, 31 states have (on average 4.548387096774194) internal successors, (141), 31 states have internal predecessors, (141), 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) [2022-01-18 09:52:43,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:52:43,221 INFO L93 Difference]: Finished difference Result 64415 states and 235877 transitions. [2022-01-18 09:52:43,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-01-18 09:52:43,222 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.548387096774194) internal successors, (141), 31 states have internal predecessors, (141), 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 76 [2022-01-18 09:52:43,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:52:43,403 INFO L225 Difference]: With dead ends: 64415 [2022-01-18 09:52:43,403 INFO L226 Difference]: Without dead ends: 56207 [2022-01-18 09:52:43,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 134 SyntacticMatches, 2 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5566 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2254, Invalid=14258, Unknown=0, NotChecked=0, Total=16512 [2022-01-18 09:52:43,407 INFO L933 BasicCegarLoop]: 447 mSDtfsCounter, 2291 mSDsluCounter, 5951 mSDsCounter, 0 mSdLazyCounter, 2071 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2291 SdHoareTripleChecker+Valid, 6322 SdHoareTripleChecker+Invalid, 2194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 2071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 09:52:43,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2291 Valid, 6322 Invalid, 2194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 2071 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 09:52:43,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56207 states. [2022-01-18 09:52:44,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56207 to 22567. [2022-01-18 09:52:44,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22567 states, 22565 states have (on average 3.8696654110347883) internal successors, (87319), 22566 states have internal predecessors, (87319), 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) [2022-01-18 09:52:44,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22567 states to 22567 states and 87319 transitions. [2022-01-18 09:52:44,449 INFO L78 Accepts]: Start accepts. Automaton has 22567 states and 87319 transitions. Word has length 76 [2022-01-18 09:52:44,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:52:44,449 INFO L470 AbstractCegarLoop]: Abstraction has 22567 states and 87319 transitions. [2022-01-18 09:52:44,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.548387096774194) internal successors, (141), 31 states have internal predecessors, (141), 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) [2022-01-18 09:52:44,449 INFO L276 IsEmpty]: Start isEmpty. Operand 22567 states and 87319 transitions. [2022-01-18 09:52:44,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-18 09:52:44,468 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:52:44,468 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-01-18 09:52:44,485 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-18 09:52:44,669 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,SelfDestructingSolverStorable14 [2022-01-18 09:52:44,671 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 09:52:44,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:52:44,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1737841852, now seen corresponding path program 2 times [2022-01-18 09:52:44,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:52:44,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614877160] [2022-01-18 09:52:44,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:52:44,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:52:44,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:52:44,816 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:52:44,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:52:44,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614877160] [2022-01-18 09:52:44,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614877160] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:52:44,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952379496] [2022-01-18 09:52:44,817 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 09:52:44,817 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:52:44,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:52:44,818 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) [2022-01-18 09:52:44,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-18 09:52:44,900 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-18 09:52:44,901 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 09:52:44,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-18 09:52:44,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:52:45,377 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-18 09:52:45,378 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 09:52:45,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952379496] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:52:45,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 09:52:45,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15] total 25 [2022-01-18 09:52:45,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866301648] [2022-01-18 09:52:45,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:52:45,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 09:52:45,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:52:45,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 09:52:45,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2022-01-18 09:52:45,379 INFO L87 Difference]: Start difference. First operand 22567 states and 87319 transitions. Second operand has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 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) [2022-01-18 09:52:46,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:52:46,199 INFO L93 Difference]: Finished difference Result 37441 states and 139078 transitions. [2022-01-18 09:52:46,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 09:52:46,199 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 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 76 [2022-01-18 09:52:46,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:52:46,293 INFO L225 Difference]: With dead ends: 37441 [2022-01-18 09:52:46,293 INFO L226 Difference]: Without dead ends: 32401 [2022-01-18 09:52:46,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=239, Invalid=1243, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:52:46,294 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 536 mSDsluCounter, 1391 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 1564 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 09:52:46,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [536 Valid, 1564 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 09:52:46,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32401 states. [2022-01-18 09:52:46,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32401 to 17271. [2022-01-18 09:52:46,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17271 states, 17269 states have (on average 3.893219063060976) internal successors, (67232), 17270 states have internal predecessors, (67232), 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) [2022-01-18 09:52:46,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17271 states to 17271 states and 67232 transitions. [2022-01-18 09:52:46,748 INFO L78 Accepts]: Start accepts. Automaton has 17271 states and 67232 transitions. Word has length 76 [2022-01-18 09:52:46,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:52:46,748 INFO L470 AbstractCegarLoop]: Abstraction has 17271 states and 67232 transitions. [2022-01-18 09:52:46,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 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) [2022-01-18 09:52:46,748 INFO L276 IsEmpty]: Start isEmpty. Operand 17271 states and 67232 transitions. [2022-01-18 09:52:46,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-18 09:52:46,765 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:52:46,765 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-01-18 09:52:46,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-18 09:52:46,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-01-18 09:52:46,966 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 09:52:46,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:52:46,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1224207812, now seen corresponding path program 1 times [2022-01-18 09:52:46,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:52:46,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512241356] [2022-01-18 09:52:46,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:52:46,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:52:46,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:52:47,093 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:52:47,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:52:47,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512241356] [2022-01-18 09:52:47,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512241356] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:52:47,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322688253] [2022-01-18 09:52:47,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:52:47,094 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:52:47,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:52:47,095 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) [2022-01-18 09:52:47,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-18 09:52:47,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:52:47,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 14 conjunts are in the unsatisfiable core [2022-01-18 09:52:47,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:52:47,490 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:52:47,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:52:47,624 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-01-18 09:52:47,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322688253] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:52:47,625 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:52:47,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 12] total 29 [2022-01-18 09:52:47,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660298820] [2022-01-18 09:52:47,625 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:52:47,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:52:47,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:52:47,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:52:47,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=715, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:52:47,628 INFO L87 Difference]: Start difference. First operand 17271 states and 67232 transitions. Second operand has 29 states, 29 states have (on average 5.103448275862069) internal successors, (148), 29 states have internal predecessors, (148), 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) [2022-01-18 09:52:49,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:52:49,922 INFO L93 Difference]: Finished difference Result 49255 states and 180552 transitions. [2022-01-18 09:52:49,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-01-18 09:52:49,923 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 5.103448275862069) internal successors, (148), 29 states have internal predecessors, (148), 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 76 [2022-01-18 09:52:49,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:52:50,039 INFO L225 Difference]: With dead ends: 49255 [2022-01-18 09:52:50,040 INFO L226 Difference]: Without dead ends: 38983 [2022-01-18 09:52:50,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 136 SyntacticMatches, 2 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3348 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1406, Invalid=8494, Unknown=0, NotChecked=0, Total=9900 [2022-01-18 09:52:50,043 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1762 mSDsluCounter, 5625 mSDsCounter, 0 mSdLazyCounter, 2073 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1762 SdHoareTripleChecker+Valid, 5946 SdHoareTripleChecker+Invalid, 2137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 09:52:50,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1762 Valid, 5946 Invalid, 2137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2073 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 09:52:50,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38983 states. [2022-01-18 09:52:50,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38983 to 18729. [2022-01-18 09:52:50,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18729 states, 18727 states have (on average 3.8707214182730816) internal successors, (72487), 18728 states have internal predecessors, (72487), 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) [2022-01-18 09:52:50,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18729 states to 18729 states and 72487 transitions. [2022-01-18 09:52:50,725 INFO L78 Accepts]: Start accepts. Automaton has 18729 states and 72487 transitions. Word has length 76 [2022-01-18 09:52:50,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:52:50,725 INFO L470 AbstractCegarLoop]: Abstraction has 18729 states and 72487 transitions. [2022-01-18 09:52:50,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 5.103448275862069) internal successors, (148), 29 states have internal predecessors, (148), 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) [2022-01-18 09:52:50,725 INFO L276 IsEmpty]: Start isEmpty. Operand 18729 states and 72487 transitions. [2022-01-18 09:52:50,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-18 09:52:50,742 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:52:50,742 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-01-18 09:52:50,758 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-18 09:52:50,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:52:50,945 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 09:52:50,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:52:50,945 INFO L85 PathProgramCache]: Analyzing trace with hash -937782972, now seen corresponding path program 2 times [2022-01-18 09:52:50,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:52:50,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693726453] [2022-01-18 09:52:50,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:52:50,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:52:50,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:52:51,080 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:52:51,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:52:51,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693726453] [2022-01-18 09:52:51,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693726453] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:52:51,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167985975] [2022-01-18 09:52:51,081 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 09:52:51,081 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:52:51,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:52:51,082 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 09:52:51,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-18 09:52:51,178 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-18 09:52:51,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 09:52:51,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-18 09:52:51,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:52:51,656 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-18 09:52:51,656 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 09:52:51,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167985975] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:52:51,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 09:52:51,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15] total 25 [2022-01-18 09:52:51,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010321878] [2022-01-18 09:52:51,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:52:51,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 09:52:51,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:52:51,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 09:52:51,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2022-01-18 09:52:51,658 INFO L87 Difference]: Start difference. First operand 18729 states and 72487 transitions. Second operand has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 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) [2022-01-18 09:52:52,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:52:52,130 INFO L93 Difference]: Finished difference Result 28943 states and 107348 transitions. [2022-01-18 09:52:52,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 09:52:52,130 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 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 76 [2022-01-18 09:52:52,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:52:52,197 INFO L225 Difference]: With dead ends: 28943 [2022-01-18 09:52:52,197 INFO L226 Difference]: Without dead ends: 23921 [2022-01-18 09:52:52,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=217, Invalid=1189, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:52:52,198 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 537 mSDsluCounter, 1223 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:52:52,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [537 Valid, 1390 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:52:52,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23921 states. [2022-01-18 09:52:52,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23921 to 14759. [2022-01-18 09:52:52,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14759 states, 14757 states have (on average 3.8519346750694585) internal successors, (56843), 14758 states have internal predecessors, (56843), 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) [2022-01-18 09:52:52,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14759 states to 14759 states and 56843 transitions. [2022-01-18 09:52:52,842 INFO L78 Accepts]: Start accepts. Automaton has 14759 states and 56843 transitions. Word has length 76 [2022-01-18 09:52:52,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:52:52,843 INFO L470 AbstractCegarLoop]: Abstraction has 14759 states and 56843 transitions. [2022-01-18 09:52:52,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 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) [2022-01-18 09:52:52,843 INFO L276 IsEmpty]: Start isEmpty. Operand 14759 states and 56843 transitions. [2022-01-18 09:52:52,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-01-18 09:52:52,869 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:52:52,869 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-01-18 09:52:52,884 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-01-18 09:52:53,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-01-18 09:52:53,070 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 09:52:53,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:52:53,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1079612478, now seen corresponding path program 1 times [2022-01-18 09:52:53,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:52:53,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113601134] [2022-01-18 09:52:53,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:52:53,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:52:53,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:52:53,233 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:52:53,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:52:53,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113601134] [2022-01-18 09:52:53,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113601134] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:52:53,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240746745] [2022-01-18 09:52:53,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:52:53,235 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:52:53,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:52:53,236 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 09:52:53,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-01-18 09:52:53,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:52:53,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 15 conjunts are in the unsatisfiable core [2022-01-18 09:52:53,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:52:53,824 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:52:53,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:52:54,111 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:52:54,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240746745] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:52:54,111 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:52:54,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 36 [2022-01-18 09:52:54,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736880343] [2022-01-18 09:52:54,112 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:52:54,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-01-18 09:52:54,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:52:54,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-01-18 09:52:54,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=1083, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 09:52:54,113 INFO L87 Difference]: Start difference. First operand 14759 states and 56843 transitions. Second operand has 36 states, 36 states have (on average 5.416666666666667) internal successors, (195), 36 states have internal predecessors, (195), 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) [2022-01-18 09:52:55,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:52:55,638 INFO L93 Difference]: Finished difference Result 24293 states and 89514 transitions. [2022-01-18 09:52:55,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 09:52:55,639 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 5.416666666666667) internal successors, (195), 36 states have internal predecessors, (195), 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 80 [2022-01-18 09:52:55,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:52:55,656 INFO L225 Difference]: With dead ends: 24293 [2022-01-18 09:52:55,656 INFO L226 Difference]: Without dead ends: 6257 [2022-01-18 09:52:55,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 137 SyntacticMatches, 1 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1583 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1142, Invalid=5178, Unknown=0, NotChecked=0, Total=6320 [2022-01-18 09:52:55,657 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 2005 mSDsluCounter, 5610 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2005 SdHoareTripleChecker+Valid, 5824 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:52:55,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2005 Valid, 5824 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:52:55,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6257 states. [2022-01-18 09:52:55,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6257 to 6257. [2022-01-18 09:52:55,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6257 states, 6255 states have (on average 3.6452438049560354) internal successors, (22801), 6256 states have internal predecessors, (22801), 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) [2022-01-18 09:52:55,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6257 states to 6257 states and 22801 transitions. [2022-01-18 09:52:55,753 INFO L78 Accepts]: Start accepts. Automaton has 6257 states and 22801 transitions. Word has length 80 [2022-01-18 09:52:55,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:52:55,753 INFO L470 AbstractCegarLoop]: Abstraction has 6257 states and 22801 transitions. [2022-01-18 09:52:55,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 5.416666666666667) internal successors, (195), 36 states have internal predecessors, (195), 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) [2022-01-18 09:52:55,754 INFO L276 IsEmpty]: Start isEmpty. Operand 6257 states and 22801 transitions. [2022-01-18 09:52:55,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-01-18 09:52:55,762 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:52:55,762 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-01-18 09:52:55,778 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-01-18 09:52:55,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:52:55,963 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 09:52:55,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:52:55,963 INFO L85 PathProgramCache]: Analyzing trace with hash 86733058, now seen corresponding path program 2 times [2022-01-18 09:52:55,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:52:55,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63662404] [2022-01-18 09:52:55,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:52:55,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:52:55,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:52:56,162 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-18 09:52:56,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:52:56,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63662404] [2022-01-18 09:52:56,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63662404] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:52:56,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:52:56,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 09:52:56,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621476806] [2022-01-18 09:52:56,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:52:56,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 09:52:56,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:52:56,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 09:52:56,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-01-18 09:52:56,164 INFO L87 Difference]: Start difference. First operand 6257 states and 22801 transitions. Second operand has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 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) [2022-01-18 09:52:56,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:52:56,405 INFO L93 Difference]: Finished difference Result 5937 states and 21697 transitions. [2022-01-18 09:52:56,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 09:52:56,405 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 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 80 [2022-01-18 09:52:56,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:52:56,405 INFO L225 Difference]: With dead ends: 5937 [2022-01-18 09:52:56,405 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 09:52:56,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2022-01-18 09:52:56,406 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 567 mSDsluCounter, 1165 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 1318 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:52:56,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [567 Valid, 1318 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:52:56,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 09:52:56,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 09:52:56,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:52:56,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 09:52:56,408 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 80 [2022-01-18 09:52:56,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:52:56,408 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 09:52:56,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 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) [2022-01-18 09:52:56,408 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 09:52:56,408 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 09:52:56,408 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-18 09:52:56,409 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2022-01-18 09:52:56,409 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2022-01-18 09:52:56,409 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-01-18 09:52:56,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-18 09:52:56,409 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1] [2022-01-18 09:52:56,409 INFO L308 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE,SAFE (1/2) [2022-01-18 09:52:56,411 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-18 09:52:56,412 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 [2022-01-18 09:52:56,412 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-18 09:52:56,415 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 124 places, 115 transitions, 272 flow [2022-01-18 09:52:57,172 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 33682 states, 33680 states have (on average 4.270160332541567) internal successors, (143819), 33681 states have internal predecessors, (143819), 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) [2022-01-18 09:52:57,213 INFO L276 IsEmpty]: Start isEmpty. Operand has 33682 states, 33680 states have (on average 4.270160332541567) internal successors, (143819), 33681 states have internal predecessors, (143819), 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) [2022-01-18 09:52:57,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-01-18 09:52:57,244 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:52:57,244 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 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] [2022-01-18 09:52:57,245 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 09:52:57,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:52:57,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1796516230, now seen corresponding path program 1 times [2022-01-18 09:52:57,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:52:57,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144030395] [2022-01-18 09:52:57,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:52:57,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:52:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 09:52:57,259 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 09:52:57,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 09:52:57,278 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 09:52:57,278 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 09:52:57,278 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 2 remaining) [2022-01-18 09:52:57,278 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-01-18 09:52:57,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 09:52:57,279 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-18 09:52:57,279 INFO L308 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (2/2) [2022-01-18 09:52:57,279 WARN L234 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-18 09:52:57,279 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-01-18 09:52:57,293 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,293 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,293 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,293 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,293 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,293 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,293 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,293 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,293 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,293 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,294 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,294 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,294 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,294 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,294 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,294 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,294 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,294 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,294 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,294 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,294 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,294 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,295 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,295 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,295 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,295 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,295 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,295 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,295 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,295 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,295 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,295 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,295 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,295 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,295 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,295 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,296 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,296 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,296 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,296 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,296 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,296 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,296 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,296 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,296 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,296 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,296 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,296 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,296 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,297 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,297 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,297 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,297 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,297 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,297 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,297 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,297 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,297 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,297 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,297 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,298 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,298 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,298 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,298 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,298 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,298 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,298 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,298 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,298 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,298 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,298 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,298 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,298 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,298 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,299 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,299 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,299 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,299 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,299 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,299 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,299 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,299 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,299 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,299 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,300 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,300 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,300 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,300 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,300 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,300 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,300 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,300 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,300 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,300 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,300 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,300 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,301 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,301 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,301 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,301 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,301 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,301 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,301 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,301 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,301 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,301 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,301 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,301 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,302 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,302 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,302 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,302 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,302 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,302 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,302 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,302 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,302 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,302 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,302 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,303 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,303 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,303 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,303 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,303 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,303 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,303 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,303 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,303 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,303 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,303 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,303 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,303 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,303 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,304 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,304 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,304 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,304 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,304 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,304 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,304 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,304 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,305 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,305 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,305 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,305 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,305 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,305 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,305 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,305 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,305 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,306 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,306 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,306 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,306 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,306 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,306 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,306 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,306 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,307 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,307 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,307 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,307 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,307 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,307 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,307 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,307 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,307 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,307 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,308 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,308 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,308 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,308 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,308 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,308 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,308 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,309 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,309 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,309 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,309 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,309 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:52:57,309 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 09:52:57,310 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 09:52:57,310 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 [2022-01-18 09:52:57,310 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-18 09:52:57,311 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 146 places, 134 transitions, 332 flow [2022-01-18 09:53:05,114 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 246746 states, 246740 states have (on average 5.057355921212612) internal successors, (1247852), 246745 states have internal predecessors, (1247852), 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) [2022-01-18 09:53:05,488 INFO L276 IsEmpty]: Start isEmpty. Operand has 246746 states, 246740 states have (on average 5.057355921212612) internal successors, (1247852), 246745 states have internal predecessors, (1247852), 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) [2022-01-18 09:53:05,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-18 09:53:05,488 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:53:05,488 INFO L514 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] [2022-01-18 09:53:05,489 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 09:53:05,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:53:05,489 INFO L85 PathProgramCache]: Analyzing trace with hash 536743157, now seen corresponding path program 1 times [2022-01-18 09:53:05,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:53:05,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369941519] [2022-01-18 09:53:05,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:53:05,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:53:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:53:05,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:53:05,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:53:05,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369941519] [2022-01-18 09:53:05,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369941519] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:53:05,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:53:05,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 09:53:05,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589396295] [2022-01-18 09:53:05,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:53:05,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 09:53:05,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:53:05,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 09:53:05,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-18 09:53:05,946 INFO L87 Difference]: Start difference. First operand has 246746 states, 246740 states have (on average 5.057355921212612) internal successors, (1247852), 246745 states have internal predecessors, (1247852), 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 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 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) [2022-01-18 09:53:11,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:53:11,505 INFO L93 Difference]: Finished difference Result 305598 states and 1496026 transitions. [2022-01-18 09:53:11,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 09:53:11,506 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 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 40 [2022-01-18 09:53:11,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:53:13,260 INFO L225 Difference]: With dead ends: 305598 [2022-01-18 09:53:13,260 INFO L226 Difference]: Without dead ends: 213053 [2022-01-18 09:53:13,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-01-18 09:53:13,261 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 335 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:53:13,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [335 Valid, 650 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:53:14,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213053 states. [2022-01-18 09:53:21,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213053 to 213053. [2022-01-18 09:53:21,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213053 states, 213048 states have (on average 4.9061948481093465) internal successors, (1045255), 213052 states have internal predecessors, (1045255), 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) [2022-01-18 09:53:23,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213053 states to 213053 states and 1045255 transitions. [2022-01-18 09:53:23,690 INFO L78 Accepts]: Start accepts. Automaton has 213053 states and 1045255 transitions. Word has length 40 [2022-01-18 09:53:23,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:53:23,691 INFO L470 AbstractCegarLoop]: Abstraction has 213053 states and 1045255 transitions. [2022-01-18 09:53:23,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 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) [2022-01-18 09:53:23,691 INFO L276 IsEmpty]: Start isEmpty. Operand 213053 states and 1045255 transitions. [2022-01-18 09:53:23,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-18 09:53:23,691 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:53:23,691 INFO L514 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] [2022-01-18 09:53:23,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 09:53:23,692 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 09:53:23,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:53:23,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1362336001, now seen corresponding path program 1 times [2022-01-18 09:53:23,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:53:23,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778151429] [2022-01-18 09:53:23,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:53:23,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:53:23,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:53:23,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:53:23,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:53:23,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778151429] [2022-01-18 09:53:23,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778151429] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:53:23,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:53:23,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 09:53:23,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348634966] [2022-01-18 09:53:23,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:53:23,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 09:53:23,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:53:23,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 09:53:23,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-01-18 09:53:23,822 INFO L87 Difference]: Start difference. First operand 213053 states and 1045255 transitions. Second operand has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 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) [2022-01-18 09:53:29,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:53:29,054 INFO L93 Difference]: Finished difference Result 386153 states and 1825543 transitions. [2022-01-18 09:53:29,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 09:53:29,054 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 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 52 [2022-01-18 09:53:29,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:53:32,695 INFO L225 Difference]: With dead ends: 386153 [2022-01-18 09:53:32,696 INFO L226 Difference]: Without dead ends: 333137 [2022-01-18 09:53:32,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:53:32,696 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 525 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:53:32,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [525 Valid, 991 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:53:34,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333137 states. [2022-01-18 09:53:42,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333137 to 225939. [2022-01-18 09:53:42,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225939 states, 225935 states have (on average 4.848721977559918) internal successors, (1095496), 225938 states have internal predecessors, (1095496), 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) [2022-01-18 09:53:45,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225939 states to 225939 states and 1095496 transitions. [2022-01-18 09:53:45,790 INFO L78 Accepts]: Start accepts. Automaton has 225939 states and 1095496 transitions. Word has length 52 [2022-01-18 09:53:45,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:53:45,790 INFO L470 AbstractCegarLoop]: Abstraction has 225939 states and 1095496 transitions. [2022-01-18 09:53:45,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 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) [2022-01-18 09:53:45,790 INFO L276 IsEmpty]: Start isEmpty. Operand 225939 states and 1095496 transitions. [2022-01-18 09:53:45,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-18 09:53:45,793 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:53:45,793 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 09:53:45,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-18 09:53:45,793 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 09:53:45,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:53:45,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1921991202, now seen corresponding path program 1 times [2022-01-18 09:53:45,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:53:45,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362247701] [2022-01-18 09:53:45,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:53:45,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:53:45,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:53:45,894 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:53:45,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:53:45,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362247701] [2022-01-18 09:53:45,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362247701] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:53:45,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961784109] [2022-01-18 09:53:45,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:53:45,895 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:53:45,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:53:45,896 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 09:53:45,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-01-18 09:53:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:53:45,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-18 09:53:45,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:53:46,194 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:53:46,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:53:46,323 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:53:46,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961784109] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:53:46,324 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:53:46,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 25 [2022-01-18 09:53:46,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487217294] [2022-01-18 09:53:46,324 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:53:46,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 09:53:46,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:53:46,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 09:53:46,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=512, Unknown=0, NotChecked=0, Total=600 [2022-01-18 09:53:46,325 INFO L87 Difference]: Start difference. First operand 225939 states and 1095496 transitions. Second operand has 25 states, 25 states have (on average 4.96) internal successors, (124), 25 states have internal predecessors, (124), 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) [2022-01-18 09:53:55,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:53:55,776 INFO L93 Difference]: Finished difference Result 478999 states and 2256328 transitions. [2022-01-18 09:53:55,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 09:53:55,798 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.96) internal successors, (124), 25 states have internal predecessors, (124), 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 62 [2022-01-18 09:53:55,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:54:01,298 INFO L225 Difference]: With dead ends: 478999 [2022-01-18 09:54:01,298 INFO L226 Difference]: Without dead ends: 393442 [2022-01-18 09:54:01,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 108 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 853 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=619, Invalid=2461, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:54:01,317 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 992 mSDsluCounter, 3285 mSDsCounter, 0 mSdLazyCounter, 1449 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 3488 SdHoareTripleChecker+Invalid, 1471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:54:01,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [992 Valid, 3488 Invalid, 1471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1449 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:54:02,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393442 states. [2022-01-18 09:54:12,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393442 to 235484. [2022-01-18 09:54:13,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235484 states, 235480 states have (on average 4.805346526244267) internal successors, (1131563), 235483 states have internal predecessors, (1131563), 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) [2022-01-18 09:54:15,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235484 states to 235484 states and 1131563 transitions. [2022-01-18 09:54:15,269 INFO L78 Accepts]: Start accepts. Automaton has 235484 states and 1131563 transitions. Word has length 62 [2022-01-18 09:54:15,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:54:15,269 INFO L470 AbstractCegarLoop]: Abstraction has 235484 states and 1131563 transitions. [2022-01-18 09:54:15,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.96) internal successors, (124), 25 states have internal predecessors, (124), 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) [2022-01-18 09:54:15,270 INFO L276 IsEmpty]: Start isEmpty. Operand 235484 states and 1131563 transitions. [2022-01-18 09:54:15,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-18 09:54:15,274 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:54:15,274 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 09:54:15,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-01-18 09:54:15,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-01-18 09:54:15,475 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 09:54:15,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:54:15,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1100351906, now seen corresponding path program 1 times [2022-01-18 09:54:15,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:54:15,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910938381] [2022-01-18 09:54:15,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:54:15,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:54:15,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:54:15,640 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:54:15,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:54:15,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910938381] [2022-01-18 09:54:15,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910938381] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:54:15,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940054529] [2022-01-18 09:54:15,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:54:15,641 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:54:15,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:54:15,644 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 09:54:15,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-01-18 09:54:15,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:54:15,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-18 09:54:15,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:54:16,108 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:54:16,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:54:16,305 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:54:16,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940054529] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:54:16,305 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:54:16,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 31 [2022-01-18 09:54:16,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570161705] [2022-01-18 09:54:16,306 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:54:16,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:54:16,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:54:16,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:54:16,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=790, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:54:16,307 INFO L87 Difference]: Start difference. First operand 235484 states and 1131563 transitions. Second operand has 31 states, 31 states have (on average 4.935483870967742) internal successors, (153), 31 states have internal predecessors, (153), 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) [2022-01-18 09:54:24,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:54:24,757 INFO L93 Difference]: Finished difference Result 552258 states and 2525152 transitions. [2022-01-18 09:54:24,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 09:54:24,758 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.935483870967742) internal successors, (153), 31 states have internal predecessors, (153), 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 66 [2022-01-18 09:54:24,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:54:30,244 INFO L225 Difference]: With dead ends: 552258 [2022-01-18 09:54:30,245 INFO L226 Difference]: Without dead ends: 513165 [2022-01-18 09:54:30,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 113 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 715 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=537, Invalid=2219, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 09:54:30,245 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 1712 mSDsluCounter, 3803 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1712 SdHoareTripleChecker+Valid, 3845 SdHoareTripleChecker+Invalid, 1146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:54:30,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1712 Valid, 3845 Invalid, 1146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1104 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:54:31,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513165 states. [2022-01-18 09:54:44,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513165 to 212967. [2022-01-18 09:54:44,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212967 states, 212964 states have (on average 4.828797355421574) internal successors, (1028360), 212966 states have internal predecessors, (1028360), 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) [2022-01-18 09:54:47,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212967 states to 212967 states and 1028360 transitions. [2022-01-18 09:54:47,488 INFO L78 Accepts]: Start accepts. Automaton has 212967 states and 1028360 transitions. Word has length 66 [2022-01-18 09:54:47,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:54:47,488 INFO L470 AbstractCegarLoop]: Abstraction has 212967 states and 1028360 transitions. [2022-01-18 09:54:47,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.935483870967742) internal successors, (153), 31 states have internal predecessors, (153), 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) [2022-01-18 09:54:47,488 INFO L276 IsEmpty]: Start isEmpty. Operand 212967 states and 1028360 transitions. [2022-01-18 09:54:47,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-18 09:54:47,507 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:54:47,507 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-01-18 09:54:47,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-01-18 09:54:47,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-01-18 09:54:47,723 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 09:54:47,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:54:47,724 INFO L85 PathProgramCache]: Analyzing trace with hash -522374246, now seen corresponding path program 1 times [2022-01-18 09:54:47,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:54:47,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535829397] [2022-01-18 09:54:47,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:54:47,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:54:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:54:47,891 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:54:47,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:54:47,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535829397] [2022-01-18 09:54:47,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535829397] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:54:47,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886358293] [2022-01-18 09:54:47,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:54:47,892 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:54:47,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:54:47,893 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 09:54:47,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-01-18 09:54:48,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:54:48,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 12 conjunts are in the unsatisfiable core [2022-01-18 09:54:48,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:54:48,407 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:54:48,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:54:48,669 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:54:48,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886358293] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:54:48,669 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:54:48,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 32 [2022-01-18 09:54:48,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175002612] [2022-01-18 09:54:48,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:54:48,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-18 09:54:48,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:54:48,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-18 09:54:48,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=840, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:54:48,671 INFO L87 Difference]: Start difference. First operand 212967 states and 1028360 transitions. Second operand has 32 states, 32 states have (on average 5.34375) internal successors, (171), 32 states have internal predecessors, (171), 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) [2022-01-18 09:54:56,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:54:56,611 INFO L93 Difference]: Finished difference Result 400863 states and 1865182 transitions. [2022-01-18 09:54:56,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 09:54:56,612 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 5.34375) internal successors, (171), 32 states have internal predecessors, (171), 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 72 [2022-01-18 09:54:56,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:55:02,239 INFO L225 Difference]: With dead ends: 400863 [2022-01-18 09:55:02,239 INFO L226 Difference]: Without dead ends: 335778 [2022-01-18 09:55:02,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 123 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 860 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=571, Invalid=2399, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:55:02,240 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 1043 mSDsluCounter, 2796 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 2972 SdHoareTripleChecker+Invalid, 1205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:55:02,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1043 Valid, 2972 Invalid, 1205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:55:02,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335778 states. [2022-01-18 09:55:12,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335778 to 226338. [2022-01-18 09:55:12,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226338 states, 226335 states have (on average 4.7546424547683745) internal successors, (1076142), 226337 states have internal predecessors, (1076142), 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) [2022-01-18 09:55:15,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226338 states to 226338 states and 1076142 transitions. [2022-01-18 09:55:15,079 INFO L78 Accepts]: Start accepts. Automaton has 226338 states and 1076142 transitions. Word has length 72 [2022-01-18 09:55:15,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:55:15,079 INFO L470 AbstractCegarLoop]: Abstraction has 226338 states and 1076142 transitions. [2022-01-18 09:55:15,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 5.34375) internal successors, (171), 32 states have internal predecessors, (171), 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) [2022-01-18 09:55:15,080 INFO L276 IsEmpty]: Start isEmpty. Operand 226338 states and 1076142 transitions. [2022-01-18 09:55:15,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-18 09:55:15,129 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:55:15,129 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-01-18 09:55:15,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-01-18 09:55:15,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-01-18 09:55:15,343 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 09:55:15,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:55:15,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1745472538, now seen corresponding path program 1 times [2022-01-18 09:55:15,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:55:15,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349653367] [2022-01-18 09:55:15,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:55:15,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:55:15,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:55:15,534 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:55:15,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:55:15,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349653367] [2022-01-18 09:55:15,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349653367] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:55:15,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88694822] [2022-01-18 09:55:15,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:55:15,535 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:55:15,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:55:15,536 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 09:55:15,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-01-18 09:55:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:55:15,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 14 conjunts are in the unsatisfiable core [2022-01-18 09:55:15,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:55:16,092 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:55:16,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:55:16,296 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 09:55:16,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88694822] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:55:16,296 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:55:16,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 14] total 31 [2022-01-18 09:55:16,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758176956] [2022-01-18 09:55:16,298 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:55:16,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:55:16,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:55:16,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:55:16,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=827, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:55:16,299 INFO L87 Difference]: Start difference. First operand 226338 states and 1076142 transitions. Second operand has 31 states, 31 states have (on average 4.580645161290323) internal successors, (142), 31 states have internal predecessors, (142), 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) [2022-01-18 09:55:34,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:55:34,317 INFO L93 Difference]: Finished difference Result 815566 states and 3672142 transitions. [2022-01-18 09:55:34,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-01-18 09:55:34,317 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.580645161290323) internal successors, (142), 31 states have internal predecessors, (142), 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 76 [2022-01-18 09:55:34,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:55:43,209 INFO L225 Difference]: With dead ends: 815566 [2022-01-18 09:55:43,210 INFO L226 Difference]: Without dead ends: 755716 [2022-01-18 09:55:43,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 134 SyntacticMatches, 2 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7939 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=2894, Invalid=19456, Unknown=0, NotChecked=0, Total=22350 [2022-01-18 09:55:43,211 INFO L933 BasicCegarLoop]: 587 mSDtfsCounter, 2735 mSDsluCounter, 8113 mSDsCounter, 0 mSdLazyCounter, 3210 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2735 SdHoareTripleChecker+Valid, 8455 SdHoareTripleChecker+Invalid, 3331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 3210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-18 09:55:43,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2735 Valid, 8455 Invalid, 3331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 3210 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-18 09:55:45,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755716 states. [2022-01-18 09:56:04,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755716 to 233946. [2022-01-18 09:56:04,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233946 states, 233943 states have (on average 4.743343464006189) internal successors, (1109672), 233945 states have internal predecessors, (1109672), 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) [2022-01-18 09:56:08,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233946 states to 233946 states and 1109672 transitions. [2022-01-18 09:56:08,013 INFO L78 Accepts]: Start accepts. Automaton has 233946 states and 1109672 transitions. Word has length 76 [2022-01-18 09:56:08,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:56:08,013 INFO L470 AbstractCegarLoop]: Abstraction has 233946 states and 1109672 transitions. [2022-01-18 09:56:08,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.580645161290323) internal successors, (142), 31 states have internal predecessors, (142), 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) [2022-01-18 09:56:08,013 INFO L276 IsEmpty]: Start isEmpty. Operand 233946 states and 1109672 transitions. [2022-01-18 09:56:08,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-18 09:56:08,071 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:56:08,072 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-01-18 09:56:08,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-01-18 09:56:08,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-01-18 09:56:08,294 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 09:56:08,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:56:08,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1942012904, now seen corresponding path program 2 times [2022-01-18 09:56:08,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:56:08,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172418166] [2022-01-18 09:56:08,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:56:08,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:56:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:56:08,502 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:56:08,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:56:08,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172418166] [2022-01-18 09:56:08,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172418166] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:56:08,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265126502] [2022-01-18 09:56:08,503 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 09:56:08,503 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:56:08,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:56:08,519 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 09:56:08,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-01-18 09:56:08,640 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-18 09:56:08,641 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 09:56:08,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-18 09:56:08,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:56:09,851 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-18 09:56:09,852 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 09:56:09,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265126502] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:56:09,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 09:56:09,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15] total 25 [2022-01-18 09:56:09,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548934444] [2022-01-18 09:56:09,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:56:09,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 09:56:09,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:56:09,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 09:56:09,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2022-01-18 09:56:09,853 INFO L87 Difference]: Start difference. First operand 233946 states and 1109672 transitions. Second operand has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 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) [2022-01-18 09:56:18,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:56:18,844 INFO L93 Difference]: Finished difference Result 486666 states and 2215200 transitions. [2022-01-18 09:56:18,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 09:56:18,844 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 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 76 [2022-01-18 09:56:18,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:56:24,438 INFO L225 Difference]: With dead ends: 486666 [2022-01-18 09:56:24,438 INFO L226 Difference]: Without dead ends: 464055 [2022-01-18 09:56:24,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=239, Invalid=1243, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:56:24,439 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 706 mSDsluCounter, 1776 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 1935 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 09:56:24,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [706 Valid, 1935 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 09:56:26,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464055 states. [2022-01-18 09:56:39,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464055 to 207081. [2022-01-18 09:56:40,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207081 states, 207078 states have (on average 4.763031321531018) internal successors, (986319), 207080 states have internal predecessors, (986319), 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) [2022-01-18 09:56:43,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207081 states to 207081 states and 986319 transitions. [2022-01-18 09:56:43,232 INFO L78 Accepts]: Start accepts. Automaton has 207081 states and 986319 transitions. Word has length 76 [2022-01-18 09:56:43,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:56:43,233 INFO L470 AbstractCegarLoop]: Abstraction has 207081 states and 986319 transitions. [2022-01-18 09:56:43,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 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) [2022-01-18 09:56:43,233 INFO L276 IsEmpty]: Start isEmpty. Operand 207081 states and 986319 transitions. [2022-01-18 09:56:43,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-18 09:56:43,299 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:56:43,299 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-01-18 09:56:43,321 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-01-18 09:56:43,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:56:43,500 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 09:56:43,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:56:43,501 INFO L85 PathProgramCache]: Analyzing trace with hash -589254134, now seen corresponding path program 1 times [2022-01-18 09:56:43,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:56:43,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697604739] [2022-01-18 09:56:43,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:56:43,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:56:43,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:56:43,636 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:56:43,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:56:43,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697604739] [2022-01-18 09:56:43,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697604739] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:56:43,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143491315] [2022-01-18 09:56:43,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:56:43,637 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:56:43,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:56:43,638 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 09:56:43,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-01-18 09:56:43,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:56:43,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 14 conjunts are in the unsatisfiable core [2022-01-18 09:56:43,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:56:44,063 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:56:44,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:56:44,241 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:56:44,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143491315] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:56:44,242 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:56:44,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 35 [2022-01-18 09:56:44,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860058912] [2022-01-18 09:56:44,242 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:56:44,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-01-18 09:56:44,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:56:44,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-01-18 09:56:44,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=1044, Unknown=0, NotChecked=0, Total=1190 [2022-01-18 09:56:44,243 INFO L87 Difference]: Start difference. First operand 207081 states and 986319 transitions. Second operand has 35 states, 35 states have (on average 4.6571428571428575) internal successors, (163), 35 states have internal predecessors, (163), 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) [2022-01-18 09:56:56,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:56:56,306 INFO L93 Difference]: Finished difference Result 770153 states and 3496749 transitions. [2022-01-18 09:56:56,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-01-18 09:56:56,306 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 4.6571428571428575) internal successors, (163), 35 states have internal predecessors, (163), 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 76 [2022-01-18 09:56:56,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:57:05,059 INFO L225 Difference]: With dead ends: 770153 [2022-01-18 09:57:05,060 INFO L226 Difference]: Without dead ends: 736754 [2022-01-18 09:57:05,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 130 SyntacticMatches, 2 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5061 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=2274, Invalid=12488, Unknown=0, NotChecked=0, Total=14762 [2022-01-18 09:57:05,074 INFO L933 BasicCegarLoop]: 453 mSDtfsCounter, 2145 mSDsluCounter, 7763 mSDsCounter, 0 mSdLazyCounter, 2871 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2145 SdHoareTripleChecker+Valid, 8000 SdHoareTripleChecker+Invalid, 2940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:57:05,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2145 Valid, 8000 Invalid, 2940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2871 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 09:57:06,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736754 states. [2022-01-18 09:57:23,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736754 to 219534. [2022-01-18 09:57:24,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219534 states, 219531 states have (on average 4.7537386519443725) internal successors, (1043593), 219533 states have internal predecessors, (1043593), 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) [2022-01-18 09:57:26,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219534 states to 219534 states and 1043593 transitions. [2022-01-18 09:57:26,101 INFO L78 Accepts]: Start accepts. Automaton has 219534 states and 1043593 transitions. Word has length 76 [2022-01-18 09:57:26,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:57:26,101 INFO L470 AbstractCegarLoop]: Abstraction has 219534 states and 1043593 transitions. [2022-01-18 09:57:26,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 4.6571428571428575) internal successors, (163), 35 states have internal predecessors, (163), 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) [2022-01-18 09:57:26,101 INFO L276 IsEmpty]: Start isEmpty. Operand 219534 states and 1043593 transitions. [2022-01-18 09:57:26,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-18 09:57:26,131 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:57:26,131 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-01-18 09:57:26,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-01-18 09:57:26,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-01-18 09:57:26,339 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 09:57:26,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:57:26,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1110234904, now seen corresponding path program 2 times [2022-01-18 09:57:26,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:57:26,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678022233] [2022-01-18 09:57:26,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:57:26,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:57:26,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:57:26,463 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:57:26,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:57:26,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678022233] [2022-01-18 09:57:26,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678022233] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:57:26,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153097060] [2022-01-18 09:57:26,463 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 09:57:26,464 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:57:26,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:57:26,465 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 09:57:26,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-01-18 09:57:26,548 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-18 09:57:26,548 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 09:57:26,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-18 09:57:26,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:57:26,985 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-18 09:57:26,985 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 09:57:26,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153097060] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:57:26,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 09:57:26,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15] total 25 [2022-01-18 09:57:26,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326295648] [2022-01-18 09:57:26,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:57:26,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 09:57:26,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:57:26,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 09:57:26,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2022-01-18 09:57:26,986 INFO L87 Difference]: Start difference. First operand 219534 states and 1043593 transitions. Second operand has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 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) [2022-01-18 09:57:35,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:57:35,129 INFO L93 Difference]: Finished difference Result 448716 states and 2041526 transitions. [2022-01-18 09:57:35,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 09:57:35,129 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 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 76 [2022-01-18 09:57:35,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:57:40,691 INFO L225 Difference]: With dead ends: 448716 [2022-01-18 09:57:40,691 INFO L226 Difference]: Without dead ends: 428292 [2022-01-18 09:57:40,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=239, Invalid=1243, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:57:40,692 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 607 mSDsluCounter, 1691 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 1860 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 09:57:40,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [607 Valid, 1860 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 09:57:42,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428292 states. [2022-01-18 09:57:50,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428292 to 205218. [2022-01-18 09:57:51,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205218 states, 205215 states have (on average 4.74616377945082) internal successors, (973984), 205217 states have internal predecessors, (973984), 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) [2022-01-18 09:57:53,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205218 states to 205218 states and 973984 transitions. [2022-01-18 09:57:53,768 INFO L78 Accepts]: Start accepts. Automaton has 205218 states and 973984 transitions. Word has length 76 [2022-01-18 09:57:53,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:57:53,769 INFO L470 AbstractCegarLoop]: Abstraction has 205218 states and 973984 transitions. [2022-01-18 09:57:53,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 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) [2022-01-18 09:57:53,769 INFO L276 IsEmpty]: Start isEmpty. Operand 205218 states and 973984 transitions. [2022-01-18 09:57:53,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-01-18 09:57:53,825 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:57:53,825 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-01-18 09:57:53,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-01-18 09:57:54,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:57:54,039 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 09:57:54,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:57:54,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1393363594, now seen corresponding path program 1 times [2022-01-18 09:57:54,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:57:54,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854110330] [2022-01-18 09:57:54,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:57:54,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:57:54,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:57:54,245 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 09:57:54,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:57:54,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854110330] [2022-01-18 09:57:54,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854110330] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:57:54,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050968866] [2022-01-18 09:57:54,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:57:54,246 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:57:54,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:57:54,247 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 09:57:54,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-01-18 09:57:54,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:57:54,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 15 conjunts are in the unsatisfiable core [2022-01-18 09:57:54,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:57:54,806 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 09:57:54,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:57:55,056 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 09:57:55,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2050968866] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:57:55,056 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:57:55,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 14] total 37 [2022-01-18 09:57:55,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298091460] [2022-01-18 09:57:55,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:57:55,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-01-18 09:57:55,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:57:55,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-01-18 09:57:55,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=1144, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 09:57:55,058 INFO L87 Difference]: Start difference. First operand 205218 states and 973984 transitions. Second operand has 37 states, 37 states have (on average 4.621621621621622) internal successors, (171), 37 states have internal predecessors, (171), 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) [2022-01-18 09:58:05,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:58:05,569 INFO L93 Difference]: Finished difference Result 691910 states and 3059542 transitions. [2022-01-18 09:58:05,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-01-18 09:58:05,570 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 4.621621621621622) internal successors, (171), 37 states have internal predecessors, (171), 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 80 [2022-01-18 09:58:05,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:58:13,056 INFO L225 Difference]: With dead ends: 691910 [2022-01-18 09:58:13,057 INFO L226 Difference]: Without dead ends: 623735 [2022-01-18 09:58:13,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 137 SyntacticMatches, 1 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4100 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2159, Invalid=10497, Unknown=0, NotChecked=0, Total=12656 [2022-01-18 09:58:13,075 INFO L933 BasicCegarLoop]: 435 mSDtfsCounter, 3411 mSDsluCounter, 8040 mSDsCounter, 0 mSdLazyCounter, 2064 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3411 SdHoareTripleChecker+Valid, 8188 SdHoareTripleChecker+Invalid, 2241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 2064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 09:58:13,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3411 Valid, 8188 Invalid, 2241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 2064 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 09:58:14,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623735 states. [2022-01-18 09:58:29,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623735 to 171285. [2022-01-18 09:58:29,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171285 states, 171282 states have (on average 4.763226725516984) internal successors, (815855), 171284 states have internal predecessors, (815855), 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) [2022-01-18 09:58:31,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171285 states to 171285 states and 815855 transitions. [2022-01-18 09:58:31,173 INFO L78 Accepts]: Start accepts. Automaton has 171285 states and 815855 transitions. Word has length 80 [2022-01-18 09:58:31,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:58:31,173 INFO L470 AbstractCegarLoop]: Abstraction has 171285 states and 815855 transitions. [2022-01-18 09:58:31,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 4.621621621621622) internal successors, (171), 37 states have internal predecessors, (171), 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) [2022-01-18 09:58:31,173 INFO L276 IsEmpty]: Start isEmpty. Operand 171285 states and 815855 transitions. [2022-01-18 09:58:31,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-01-18 09:58:31,211 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:58:31,211 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-01-18 09:58:31,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-01-18 09:58:31,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:58:31,411 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 09:58:31,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:58:31,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1535872614, now seen corresponding path program 2 times [2022-01-18 09:58:31,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:58:31,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847470225] [2022-01-18 09:58:31,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:58:31,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:58:31,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:58:31,604 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-18 09:58:31,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:58:31,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847470225] [2022-01-18 09:58:31,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847470225] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:58:31,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:58:31,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 09:58:31,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333821596] [2022-01-18 09:58:31,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:58:31,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 09:58:31,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:58:31,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 09:58:31,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-01-18 09:58:31,606 INFO L87 Difference]: Start difference. First operand 171285 states and 815855 transitions. Second operand has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 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) [2022-01-18 09:58:38,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:58:38,667 INFO L93 Difference]: Finished difference Result 493101 states and 2224093 transitions. [2022-01-18 09:58:38,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 09:58:38,668 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 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 80 [2022-01-18 09:58:38,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:58:46,250 INFO L225 Difference]: With dead ends: 493101 [2022-01-18 09:58:46,250 INFO L226 Difference]: Without dead ends: 480777 [2022-01-18 09:58:46,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=396, Invalid=1496, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 09:58:46,251 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 1090 mSDsluCounter, 2559 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 2825 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:58:46,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1090 Valid, 2825 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:58:48,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480777 states. [2022-01-18 09:58:57,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480777 to 151917. [2022-01-18 09:58:58,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151917 states, 151915 states have (on average 4.81280321232268) internal successors, (731137), 151916 states have internal predecessors, (731137), 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) [2022-01-18 09:58:59,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151917 states to 151917 states and 731137 transitions. [2022-01-18 09:58:59,741 INFO L78 Accepts]: Start accepts. Automaton has 151917 states and 731137 transitions. Word has length 80 [2022-01-18 09:58:59,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:58:59,741 INFO L470 AbstractCegarLoop]: Abstraction has 151917 states and 731137 transitions. [2022-01-18 09:58:59,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 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) [2022-01-18 09:58:59,741 INFO L276 IsEmpty]: Start isEmpty. Operand 151917 states and 731137 transitions. [2022-01-18 09:58:59,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-18 09:58:59,796 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:58:59,796 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 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] [2022-01-18 09:58:59,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-18 09:58:59,798 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 09:58:59,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:58:59,798 INFO L85 PathProgramCache]: Analyzing trace with hash -2016628875, now seen corresponding path program 1 times [2022-01-18 09:58:59,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:58:59,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610052583] [2022-01-18 09:58:59,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:58:59,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:58:59,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:58:59,942 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:58:59,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:58:59,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610052583] [2022-01-18 09:58:59,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610052583] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:58:59,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614940751] [2022-01-18 09:58:59,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:58:59,944 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:58:59,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:58:59,945 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 09:58:59,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-01-18 09:59:00,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:59:00,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 14 conjunts are in the unsatisfiable core [2022-01-18 09:59:00,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:59:00,388 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 33 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:59:00,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:59:00,614 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 33 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:59:00,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614940751] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:59:00,615 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:59:00,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 39 [2022-01-18 09:59:00,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410544394] [2022-01-18 09:59:00,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:59:00,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-01-18 09:59:00,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:59:00,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-01-18 09:59:00,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=1257, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:59:00,616 INFO L87 Difference]: Start difference. First operand 151917 states and 731137 transitions. Second operand has 39 states, 39 states have (on average 5.153846153846154) internal successors, (201), 39 states have internal predecessors, (201), 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) [2022-01-18 09:59:05,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:59:05,712 INFO L93 Difference]: Finished difference Result 296537 states and 1376029 transitions. [2022-01-18 09:59:05,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:59:05,735 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 5.153846153846154) internal successors, (201), 39 states have internal predecessors, (201), 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 82 [2022-01-18 09:59:05,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:59:07,778 INFO L225 Difference]: With dead ends: 296537 [2022-01-18 09:59:07,779 INFO L226 Difference]: Without dead ends: 237905 [2022-01-18 09:59:07,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 139 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1288 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=817, Invalid=3473, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 09:59:07,779 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 941 mSDsluCounter, 3868 mSDsCounter, 0 mSdLazyCounter, 1661 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 4098 SdHoareTripleChecker+Invalid, 1704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:59:07,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [941 Valid, 4098 Invalid, 1704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1661 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:59:08,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237905 states. [2022-01-18 09:59:15,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237905 to 165937. [2022-01-18 09:59:15,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165937 states, 165935 states have (on average 4.685786603187995) internal successors, (777536), 165936 states have internal predecessors, (777536), 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) [2022-01-18 09:59:16,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165937 states to 165937 states and 777536 transitions. [2022-01-18 09:59:16,351 INFO L78 Accepts]: Start accepts. Automaton has 165937 states and 777536 transitions. Word has length 82 [2022-01-18 09:59:16,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:59:16,352 INFO L470 AbstractCegarLoop]: Abstraction has 165937 states and 777536 transitions. [2022-01-18 09:59:16,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 5.153846153846154) internal successors, (201), 39 states have internal predecessors, (201), 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) [2022-01-18 09:59:16,352 INFO L276 IsEmpty]: Start isEmpty. Operand 165937 states and 777536 transitions. [2022-01-18 09:59:17,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-18 09:59:17,305 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:59:17,305 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 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] [2022-01-18 09:59:17,330 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-01-18 09:59:17,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:59:17,519 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 09:59:17,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:59:17,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1148495861, now seen corresponding path program 1 times [2022-01-18 09:59:17,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:59:17,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053218778] [2022-01-18 09:59:17,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:59:17,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:59:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:59:17,662 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:59:17,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:59:17,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053218778] [2022-01-18 09:59:17,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053218778] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:59:17,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419287163] [2022-01-18 09:59:17,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:59:17,663 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:59:17,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:59:17,668 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 09:59:17,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-01-18 09:59:17,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:59:17,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-18 09:59:17,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:59:18,241 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 20 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:59:18,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:59:18,495 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 26 proven. 14 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 09:59:18,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419287163] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:59:18,496 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:59:18,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 16] total 40 [2022-01-18 09:59:18,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312214319] [2022-01-18 09:59:18,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:59:18,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-01-18 09:59:18,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:59:18,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-01-18 09:59:18,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1384, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:59:18,497 INFO L87 Difference]: Start difference. First operand 165937 states and 777536 transitions. Second operand has 40 states, 40 states have (on average 4.975) internal successors, (199), 40 states have internal predecessors, (199), 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) [2022-01-18 09:59:29,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:59:29,067 INFO L93 Difference]: Finished difference Result 596247 states and 2639991 transitions. [2022-01-18 09:59:29,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2022-01-18 09:59:29,067 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 4.975) internal successors, (199), 40 states have internal predecessors, (199), 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 86 [2022-01-18 09:59:29,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:59:36,035 INFO L225 Difference]: With dead ends: 596247 [2022-01-18 09:59:36,035 INFO L226 Difference]: Without dead ends: 538839 [2022-01-18 09:59:36,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 147 SyntacticMatches, 2 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11569 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=4170, Invalid=28050, Unknown=0, NotChecked=0, Total=32220 [2022-01-18 09:59:36,038 INFO L933 BasicCegarLoop]: 579 mSDtfsCounter, 3359 mSDsluCounter, 9713 mSDsCounter, 0 mSdLazyCounter, 3669 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3359 SdHoareTripleChecker+Valid, 10131 SdHoareTripleChecker+Invalid, 3803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 3669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 09:59:36,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3359 Valid, 10131 Invalid, 3803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 3669 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 09:59:37,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538839 states. [2022-01-18 09:59:48,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538839 to 171883. [2022-01-18 09:59:48,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171883 states, 171881 states have (on average 4.662592142237943) internal successors, (801411), 171882 states have internal predecessors, (801411), 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) [2022-01-18 09:59:50,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171883 states to 171883 states and 801411 transitions. [2022-01-18 09:59:50,551 INFO L78 Accepts]: Start accepts. Automaton has 171883 states and 801411 transitions. Word has length 86 [2022-01-18 09:59:50,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:59:50,551 INFO L470 AbstractCegarLoop]: Abstraction has 171883 states and 801411 transitions. [2022-01-18 09:59:50,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 4.975) internal successors, (199), 40 states have internal predecessors, (199), 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) [2022-01-18 09:59:50,552 INFO L276 IsEmpty]: Start isEmpty. Operand 171883 states and 801411 transitions. [2022-01-18 09:59:50,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-18 09:59:50,689 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:59:50,689 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 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] [2022-01-18 09:59:50,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-01-18 09:59:50,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:59:50,895 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 09:59:50,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:59:50,896 INFO L85 PathProgramCache]: Analyzing trace with hash -515710349, now seen corresponding path program 2 times [2022-01-18 09:59:50,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:59:50,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884781459] [2022-01-18 09:59:50,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:59:50,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:59:50,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:59:51,054 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:59:51,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:59:51,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884781459] [2022-01-18 09:59:51,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884781459] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:59:51,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717859554] [2022-01-18 09:59:51,055 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 09:59:51,055 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:59:51,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:59:51,056 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 09:59:51,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-01-18 09:59:51,165 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-18 09:59:51,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 09:59:51,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-18 09:59:51,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:59:51,633 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-18 09:59:51,633 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 09:59:51,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717859554] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:59:51,633 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 09:59:51,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [17] total 27 [2022-01-18 09:59:51,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864484792] [2022-01-18 09:59:51,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:59:51,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 09:59:51,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:59:51,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 09:59:51,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=612, Unknown=0, NotChecked=0, Total=702 [2022-01-18 09:59:51,634 INFO L87 Difference]: Start difference. First operand 171883 states and 801411 transitions. Second operand has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:59:57,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:59:57,717 INFO L93 Difference]: Finished difference Result 345613 states and 1552698 transitions. [2022-01-18 09:59:57,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 09:59:57,717 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-01-18 09:59:57,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:00:02,892 INFO L225 Difference]: With dead ends: 345613 [2022-01-18 10:00:02,892 INFO L226 Difference]: Without dead ends: 323113 [2022-01-18 10:00:02,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=250, Invalid=1390, Unknown=0, NotChecked=0, Total=1640 [2022-01-18 10:00:02,894 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 647 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 1538 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 10:00:02,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [647 Valid, 1538 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 10:00:04,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323113 states. [2022-01-18 10:00:11,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323113 to 153183. [2022-01-18 10:00:12,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153183 states, 153181 states have (on average 4.669939483356291) internal successors, (715346), 153182 states have internal predecessors, (715346), 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) [2022-01-18 10:00:14,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153183 states to 153183 states and 715346 transitions. [2022-01-18 10:00:14,070 INFO L78 Accepts]: Start accepts. Automaton has 153183 states and 715346 transitions. Word has length 86 [2022-01-18 10:00:14,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:00:14,070 INFO L470 AbstractCegarLoop]: Abstraction has 153183 states and 715346 transitions. [2022-01-18 10:00:14,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:00:14,070 INFO L276 IsEmpty]: Start isEmpty. Operand 153183 states and 715346 transitions. [2022-01-18 10:00:14,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-18 10:00:14,210 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:00:14,211 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 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] [2022-01-18 10:00:14,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-01-18 10:00:14,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-01-18 10:00:14,420 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 10:00:14,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:00:14,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1724829553, now seen corresponding path program 1 times [2022-01-18 10:00:14,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:00:14,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496695383] [2022-01-18 10:00:14,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:00:14,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:00:14,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:00:14,593 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:00:14,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:00:14,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496695383] [2022-01-18 10:00:14,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496695383] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 10:00:14,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871679941] [2022-01-18 10:00:14,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:00:14,594 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 10:00:14,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 10:00:14,595 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 10:00:14,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-01-18 10:00:14,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:00:14,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-18 10:00:14,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 10:00:15,055 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 33 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:00:15,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 10:00:15,319 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 33 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:00:15,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871679941] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 10:00:15,320 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 10:00:15,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 43 [2022-01-18 10:00:15,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977689229] [2022-01-18 10:00:15,320 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 10:00:15,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-01-18 10:00:15,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:00:15,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-01-18 10:00:15,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=1571, Unknown=0, NotChecked=0, Total=1806 [2022-01-18 10:00:15,321 INFO L87 Difference]: Start difference. First operand 153183 states and 715346 transitions. Second operand has 43 states, 43 states have (on average 4.953488372093023) internal successors, (213), 43 states have internal predecessors, (213), 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) [2022-01-18 10:00:26,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:00:26,021 INFO L93 Difference]: Finished difference Result 640331 states and 2848492 transitions. [2022-01-18 10:00:26,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-01-18 10:00:26,022 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 4.953488372093023) internal successors, (213), 43 states have internal predecessors, (213), 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 86 [2022-01-18 10:00:26,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:00:33,594 INFO L225 Difference]: With dead ends: 640331 [2022-01-18 10:00:33,594 INFO L226 Difference]: Without dead ends: 607073 [2022-01-18 10:00:33,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 144 SyntacticMatches, 2 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5698 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2893, Invalid=14663, Unknown=0, NotChecked=0, Total=17556 [2022-01-18 10:00:33,624 INFO L933 BasicCegarLoop]: 463 mSDtfsCounter, 1895 mSDsluCounter, 8119 mSDsCounter, 0 mSdLazyCounter, 3101 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1895 SdHoareTripleChecker+Valid, 8440 SdHoareTripleChecker+Invalid, 3171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 3101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:00:33,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1895 Valid, 8440 Invalid, 3171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 3101 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 10:00:35,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607073 states. [2022-01-18 10:00:49,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607073 to 165279. [2022-01-18 10:00:49,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165279 states, 165277 states have (on average 4.6663782619481236) internal successors, (771245), 165278 states have internal predecessors, (771245), 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) [2022-01-18 10:00:50,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165279 states to 165279 states and 771245 transitions. [2022-01-18 10:00:50,619 INFO L78 Accepts]: Start accepts. Automaton has 165279 states and 771245 transitions. Word has length 86 [2022-01-18 10:00:50,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:00:50,619 INFO L470 AbstractCegarLoop]: Abstraction has 165279 states and 771245 transitions. [2022-01-18 10:00:50,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 4.953488372093023) internal successors, (213), 43 states have internal predecessors, (213), 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) [2022-01-18 10:00:50,619 INFO L276 IsEmpty]: Start isEmpty. Operand 165279 states and 771245 transitions. [2022-01-18 10:00:51,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-18 10:00:51,567 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:00:51,567 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 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] [2022-01-18 10:00:51,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-01-18 10:00:51,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-01-18 10:00:51,792 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 10:00:51,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:00:51,792 INFO L85 PathProgramCache]: Analyzing trace with hash 333554861, now seen corresponding path program 2 times [2022-01-18 10:00:51,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:00:51,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646345319] [2022-01-18 10:00:51,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:00:51,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:00:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:00:51,945 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:00:51,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:00:51,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646345319] [2022-01-18 10:00:51,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646345319] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 10:00:51,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755264550] [2022-01-18 10:00:51,946 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 10:00:51,946 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 10:00:51,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 10:00:51,948 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 10:00:51,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-01-18 10:00:52,053 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-18 10:00:52,053 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 10:00:52,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-18 10:00:52,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 10:00:52,523 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-18 10:00:52,523 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 10:00:52,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755264550] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:00:52,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 10:00:52,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [17] total 27 [2022-01-18 10:00:52,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975785999] [2022-01-18 10:00:52,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:00:52,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 10:00:52,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:00:52,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 10:00:52,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=612, Unknown=0, NotChecked=0, Total=702 [2022-01-18 10:00:52,524 INFO L87 Difference]: Start difference. First operand 165279 states and 771245 transitions. Second operand has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:00:56,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:00:56,605 INFO L93 Difference]: Finished difference Result 321617 states and 1438302 transitions. [2022-01-18 10:00:56,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 10:00:56,605 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-01-18 10:00:56,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:00:59,896 INFO L225 Difference]: With dead ends: 321617 [2022-01-18 10:00:59,897 INFO L226 Difference]: Without dead ends: 302117 [2022-01-18 10:00:59,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=250, Invalid=1390, Unknown=0, NotChecked=0, Total=1640 [2022-01-18 10:00:59,897 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 653 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 10:00:59,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [653 Valid, 1744 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 10:01:00,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302117 states. Received shutdown request... [2022-01-18 10:01:06,040 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 10:01:06,040 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 10:01:07,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302117 to 156413. [2022-01-18 10:01:07,545 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-01-18 10:01:07,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2022-01-18 10:01:07,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156413 states, 156411 states have (on average 4.638868110299148) internal successors, (725570), 156412 states have internal predecessors, (725570), 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) [2022-01-18 10:01:07,730 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-01-18 10:01:07,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-18 10:01:07,731 WARN L594 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2022-01-18 10:01:07,731 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-01-18 10:01:07,732 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2022-01-18 10:01:07,732 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-01-18 10:01:07,732 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-01-18 10:01:07,732 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-01-18 10:01:07,732 INFO L308 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT (1/2) [2022-01-18 10:01:07,733 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-18 10:01:07,733 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 [2022-01-18 10:01:07,733 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-18 10:01:07,734 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing initial abstraction,while executing BasicCegarLoop. [2022-01-18 10:01:07,734 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 2 remaining) [2022-01-18 10:01:07,734 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-01-18 10:01:07,734 INFO L732 BasicCegarLoop]: Path program histogram: [] [2022-01-18 10:01:07,734 INFO L308 ceAbstractionStarter]: Result for error location InUseError was TIMEOUT,TIMEOUT (2/2) [2022-01-18 10:01:07,734 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 4 thread instances [2022-01-18 10:01:07,734 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 10:01:07,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 10:01:07 BasicIcfg [2022-01-18 10:01:07,757 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 10:01:07,757 INFO L158 Benchmark]: Toolchain (without parser) took 533863.93ms. Allocated memory was 408.9MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 350.4MB in the beginning and 7.7GB in the end (delta: -7.4GB). Peak memory consumption was 8.2GB. Max. memory is 16.0GB. [2022-01-18 10:01:07,757 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 408.9MB. Free memory is still 368.0MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 10:01:07,757 INFO L158 Benchmark]: CACSL2BoogieTranslator took 419.64ms. Allocated memory was 408.9MB in the beginning and 499.1MB in the end (delta: 90.2MB). Free memory was 350.3MB in the beginning and 460.2MB in the end (delta: -109.9MB). Peak memory consumption was 6.6MB. Max. memory is 16.0GB. [2022-01-18 10:01:07,757 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.43ms. Allocated memory is still 499.1MB. Free memory was 460.2MB in the beginning and 458.1MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 10:01:07,757 INFO L158 Benchmark]: Boogie Preprocessor took 32.19ms. Allocated memory is still 499.1MB. Free memory was 458.1MB in the beginning and 456.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 10:01:07,758 INFO L158 Benchmark]: RCFGBuilder took 347.92ms. Allocated memory is still 499.1MB. Free memory was 456.0MB in the beginning and 442.3MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2022-01-18 10:01:07,758 INFO L158 Benchmark]: TraceAbstraction took 533005.90ms. Allocated memory was 499.1MB in the beginning and 16.0GB in the end (delta: 15.5GB). Free memory was 442.3MB in the beginning and 7.7GB in the end (delta: -7.3GB). Peak memory consumption was 8.2GB. Max. memory is 16.0GB. [2022-01-18 10:01:07,759 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 408.9MB. Free memory is still 368.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 419.64ms. Allocated memory was 408.9MB in the beginning and 499.1MB in the end (delta: 90.2MB). Free memory was 350.3MB in the beginning and 460.2MB in the end (delta: -109.9MB). Peak memory consumption was 6.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 53.43ms. Allocated memory is still 499.1MB. Free memory was 460.2MB in the beginning and 458.1MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 32.19ms. Allocated memory is still 499.1MB. Free memory was 458.1MB in the beginning and 456.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 347.92ms. Allocated memory is still 499.1MB. Free memory was 456.0MB in the beginning and 442.3MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 533005.90ms. Allocated memory was 499.1MB in the beginning and 16.0GB in the end (delta: 15.5GB). Free memory was 442.3MB in the beginning and 7.7GB in the end (delta: -7.3GB). Peak memory consumption was 8.2GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 689]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 706]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing initial abstraction,while executing BasicCegarLoop. - TimeoutResultAtElement [Line: 708]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing initial abstraction,while executing BasicCegarLoop. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 94 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 421 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 421 mSDsluCounter, 1064 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 852 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 182 IncrementalHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 218 mSDtfsCounter, 182 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1130occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 92 NumberOfCodeBlocks, 92 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 596 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 7 procedures, 112 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2040 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2040 mSDsluCounter, 6120 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5437 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1586 IncrementalHoareTripleChecker+Invalid, 1628 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 780 mSDtfsCounter, 1586 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 237 GetRequests, 116 SyntacticMatches, 2 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 973 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6842occurred in iteration=0, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 2456 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 348 NumberOfCodeBlocks, 348 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 403 ConstructedInterpolants, 0 QuantifiedInterpolants, 2060 SizeOfPredicates, 9 NumberOfNonLiveVariables, 167 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 12/25 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 9 procedures, 130 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 35.0s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 15.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12601 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12601 mSDsluCounter, 31956 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29823 mSDsCounter, 433 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9141 IncrementalHoareTripleChecker+Invalid, 9574 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 433 mSolverCounterUnsat, 2703 mSDtfsCounter, 9141 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1486 GetRequests, 891 SyntacticMatches, 10 SemanticMatches, 585 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13849 ImplicationChecksByTransitivity, 7.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41114occurred in iteration=0, InterpolantAutomatonStates: 395, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 9.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 147346 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 1340 NumberOfCodeBlocks, 1296 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1747 ConstructedInterpolants, 0 QuantifiedInterpolants, 8515 SizeOfPredicates, 86 NumberOfNonLiveVariables, 1441 ConjunctsInSsa, 104 ConjunctsInUnsatCore, 25 InterpolantComputations, 5 PerfectInterpolantSequences, 127/370 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 4 thread instances CFG has 11 procedures, 148 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 490.4s, OverallIterations: 16, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 2.9s, AutomataDifference: 229.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.8s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22796 SdHoareTripleChecker+Valid, 9.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22796 mSDsluCounter, 69160 SdHoareTripleChecker+Invalid, 7.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 65845 mSDsCounter, 802 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23447 IncrementalHoareTripleChecker+Invalid, 24249 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 802 mSolverCounterUnsat, 5336 mSDtfsCounter, 23447 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2617 GetRequests, 1470 SyntacticMatches, 15 SemanticMatches, 1132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40294 ImplicationChecksByTransitivity, 15.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=246746occurred in iteration=0, InterpolantAutomatonStates: 809, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 235.9s AutomataMinimizationTime, 16 MinimizatonAttempts, 4025790 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 10.0s InterpolantComputationTime, 2192 NumberOfCodeBlocks, 2086 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 2840 ConstructedInterpolants, 0 QuantifiedInterpolants, 14019 SizeOfPredicates, 147 NumberOfNonLiveVariables, 2408 ConjunctsInSsa, 176 ConjunctsInUnsatCore, 38 InterpolantComputations, 7 PerfectInterpolantSequences, 506/955 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 5 procedures, 94 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=922occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 2 thread instances CFG has 7 procedures, 112 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5602occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 3 thread instances CFG has 9 procedures, 130 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33682occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 4 thread instances CFG has 11 procedures, 148 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown