/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_08-cond_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 07:39:41,972 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 07:39:41,976 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 07:39:42,015 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 07:39:42,016 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 07:39:42,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 07:39:42,019 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 07:39:42,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 07:39:42,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 07:39:42,025 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 07:39:42,026 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 07:39:42,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 07:39:42,028 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 07:39:42,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 07:39:42,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 07:39:42,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 07:39:42,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 07:39:42,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 07:39:42,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 07:39:42,040 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 07:39:42,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 07:39:42,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 07:39:42,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 07:39:42,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 07:39:42,061 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-12 07:39:42,061 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-12 07:39:42,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-12 07:39:42,067 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-12 07:39:42,067 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-12 07:39:42,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-12 07:39:42,072 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 07:39:42,073 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 07:39:42,074 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 07:39:42,075 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 07:39:42,078 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 07:39:42,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 07:39:42,079 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 07:39:42,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 07:39:42,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 07:39:42,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 07:39:42,082 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 07:39:42,083 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-Delay.epf [2020-11-12 07:39:42,139 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 07:39:42,140 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 07:39:42,144 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 07:39:42,145 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 07:39:42,145 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 07:39:42,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 07:39:42,145 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 07:39:42,146 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 07:39:42,146 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 07:39:42,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 07:39:42,147 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 07:39:42,148 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 07:39:42,148 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 07:39:42,148 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 07:39:42,148 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 07:39:42,149 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 07:39:42,149 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 07:39:42,149 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 07:39:42,149 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 07:39:42,149 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 07:39:42,150 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 07:39:42,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 07:39:42,150 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 07:39:42,150 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 07:39:42,151 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 07:39:42,151 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 07:39:42,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 07:39:42,151 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 07:39:42,151 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 07:39:42,152 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 07:39:42,152 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=DELAY_SET 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 07:39:42,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 07:39:42,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 07:39:42,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 07:39:42,620 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 07:39:42,621 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 07:39:42,622 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_08-cond_racefree.i [2020-11-12 07:39:42,712 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/540c6b274/fd2f1854b5374e1bb4e9996d7b2f6be7/FLAG5f2f5048d [2020-11-12 07:39:43,512 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 07:39:43,513 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_08-cond_racefree.i [2020-11-12 07:39:43,547 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/540c6b274/fd2f1854b5374e1bb4e9996d7b2f6be7/FLAG5f2f5048d [2020-11-12 07:39:43,781 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/540c6b274/fd2f1854b5374e1bb4e9996d7b2f6be7 [2020-11-12 07:39:43,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 07:39:43,791 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 07:39:43,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 07:39:43,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 07:39:43,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 07:39:43,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:39:43" (1/1) ... [2020-11-12 07:39:43,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@148d96e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:39:43, skipping insertion in model container [2020-11-12 07:39:43,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:39:43" (1/1) ... [2020-11-12 07:39:43,810 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 07:39:43,856 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 07:39:44,586 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 07:39:44,607 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 07:39:44,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 07:39:44,951 INFO L208 MainTranslator]: Completed translation [2020-11-12 07:39:44,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:39:44 WrapperNode [2020-11-12 07:39:44,951 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 07:39:44,954 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 07:39:44,954 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 07:39:44,954 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 07:39:44,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:39:44" (1/1) ... [2020-11-12 07:39:45,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:39:44" (1/1) ... [2020-11-12 07:39:45,063 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 07:39:45,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 07:39:45,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 07:39:45,072 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 07:39:45,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:39:44" (1/1) ... [2020-11-12 07:39:45,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:39:44" (1/1) ... [2020-11-12 07:39:45,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:39:44" (1/1) ... [2020-11-12 07:39:45,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:39:44" (1/1) ... [2020-11-12 07:39:45,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:39:44" (1/1) ... [2020-11-12 07:39:45,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:39:44" (1/1) ... [2020-11-12 07:39:45,131 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:39:44" (1/1) ... [2020-11-12 07:39:45,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 07:39:45,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 07:39:45,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 07:39:45,145 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 07:39:45,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:39:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 07:39:45,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 07:39:45,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 07:39:45,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-12 07:39:45,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 07:39:45,234 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-11-12 07:39:45,234 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2020-11-12 07:39:45,234 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2020-11-12 07:39:45,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 07:39:45,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 07:39:45,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 07:39:45,237 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 07:39:45,749 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 07:39:45,750 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-12 07:39:45,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:39:45 BoogieIcfgContainer [2020-11-12 07:39:45,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 07:39:45,754 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 07:39:45,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 07:39:45,758 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 07:39:45,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 07:39:43" (1/3) ... [2020-11-12 07:39:45,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24e65c3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:39:45, skipping insertion in model container [2020-11-12 07:39:45,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:39:44" (2/3) ... [2020-11-12 07:39:45,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24e65c3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:39:45, skipping insertion in model container [2020-11-12 07:39:45,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:39:45" (3/3) ... [2020-11-12 07:39:45,761 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_08-cond_racefree.i [2020-11-12 07:39:45,778 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 07:39:45,779 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 07:39:45,783 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 07:39:45,784 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 07:39:45,826 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,826 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,826 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,827 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,827 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,827 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,827 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,828 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,828 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,828 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,828 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,829 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,829 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,829 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,830 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,830 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,830 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,831 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,831 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,831 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,831 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,831 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,832 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,832 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,832 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,832 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,833 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,833 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,833 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,833 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,834 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,834 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,834 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,834 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,835 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,835 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,837 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,838 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,838 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,838 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,839 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,839 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,839 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,839 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,839 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:45,848 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-11-12 07:39:45,861 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-12 07:39:45,885 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 07:39:45,885 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 07:39:45,886 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 07:39:45,886 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 07:39:45,886 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 07:39:45,886 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 07:39:45,886 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 07:39:45,886 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 07:39:45,901 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 109 places, 122 transitions, 252 flow [2020-11-12 07:39:45,987 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1022 states, 1016 states have (on average 2.326771653543307) internal successors, (2364), 1021 states have internal predecessors, (2364), 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) [2020-11-12 07:39:46,892 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 899ms [2020-11-12 07:39:46,896 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 1022 states, 1016 states have (on average 2.326771653543307) internal successors, (2364), 1021 states have internal predecessors, (2364), 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) [2020-11-12 07:39:46,899 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 1022 states, 928 states have (on average 1.5086206896551724) internal successors, (1400), 1021 states have internal predecessors, (1400), 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) [2020-11-12 07:39:46,903 INFO L276 IsEmpty]: Start isEmpty. Operand has 1022 states, 928 states have (on average 1.5086206896551724) internal successors, (1400), 1021 states have internal predecessors, (1400), 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) [2020-11-12 07:39:46,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-12 07:39:46,910 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 07:39:46,911 INFO L494 BasicCegarLoop]: trace histogram [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] [2020-11-12 07:39:46,911 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 07:39:46,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 07:39:46,918 INFO L82 PathProgramCache]: Analyzing trace with hash 2078529113, now seen corresponding path program 1 times [2020-11-12 07:39:46,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 07:39:46,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340990200] [2020-11-12 07:39:46,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 07:39:47,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-12 07:39:47,186 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-12 07:39:47,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-12 07:39:47,285 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-12 07:39:47,340 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-12 07:39:47,341 INFO L595 BasicCegarLoop]: Counterexample might be feasible [2020-11-12 07:39:47,342 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 07:39:47,343 WARN L386 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-11-12 07:39:47,343 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-11-12 07:39:47,377 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,378 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,379 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,379 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,379 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,380 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,380 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,380 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,381 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,381 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,381 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,381 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,382 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,382 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,382 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,382 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,383 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,383 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,383 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,383 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,384 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,384 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,384 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,385 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,386 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,390 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,390 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,391 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,392 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,397 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,398 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,398 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,398 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,398 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,399 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,399 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,399 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,400 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,400 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,401 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,401 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,401 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,402 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,402 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,403 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,403 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,403 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,403 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,403 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,404 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,405 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,405 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,405 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,405 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,406 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,406 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,406 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,406 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,406 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,407 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,407 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,407 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,407 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,407 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,408 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,408 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,408 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,408 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,409 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,409 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,409 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,409 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,411 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,411 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,411 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,411 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,412 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,412 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,412 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,412 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,412 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,418 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,419 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,419 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,419 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,419 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,420 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,420 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,420 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,420 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:47,426 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2020-11-12 07:39:47,427 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-12 07:39:47,429 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 07:39:47,429 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 07:39:47,429 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 07:39:47,429 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 07:39:47,429 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 07:39:47,429 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 07:39:47,430 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 07:39:47,430 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 07:39:47,434 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 134 places, 152 transitions, 322 flow [2020-11-12 07:39:49,957 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 23079 states, 23070 states have (on average 3.5534893801473775) internal successors, (81979), 23078 states have internal predecessors, (81979), 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) [2020-11-12 07:39:52,990 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 3033ms [2020-11-12 07:39:53,033 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 23079 states, 23070 states have (on average 3.5534893801473775) internal successors, (81979), 23078 states have internal predecessors, (81979), 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) [2020-11-12 07:39:53,112 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 23079 states, 22068 states have (on average 2.4747145187601958) internal successors, (54612), 23078 states have internal predecessors, (54612), 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) [2020-11-12 07:39:53,143 INFO L276 IsEmpty]: Start isEmpty. Operand has 23079 states, 22068 states have (on average 2.4747145187601958) internal successors, (54612), 23078 states have internal predecessors, (54612), 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) [2020-11-12 07:39:53,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-12 07:39:53,147 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 07:39:53,147 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 07:39:53,147 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 07:39:53,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 07:39:53,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1874201903, now seen corresponding path program 1 times [2020-11-12 07:39:53,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 07:39:53,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557422094] [2020-11-12 07:39:53,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 07:39:53,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 07:39:53,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 07:39:53,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557422094] [2020-11-12 07:39:53,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 07:39:53,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-12 07:39:53,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698318182] [2020-11-12 07:39:53,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-12 07:39:53,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 07:39:53,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-12 07:39:53,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-12 07:39:53,351 INFO L87 Difference]: Start difference. First operand has 23079 states, 22068 states have (on average 2.4747145187601958) internal successors, (54612), 23078 states have internal predecessors, (54612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 07:39:53,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 07:39:53,676 INFO L93 Difference]: Finished difference Result 21973 states and 41438 transitions. [2020-11-12 07:39:53,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-12 07:39:53,677 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2020-11-12 07:39:53,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 07:39:53,745 INFO L225 Difference]: With dead ends: 21973 [2020-11-12 07:39:53,745 INFO L226 Difference]: Without dead ends: 7709 [2020-11-12 07:39:53,747 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-12 07:39:53,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7709 states. [2020-11-12 07:39:54,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7709 to 7709. [2020-11-12 07:39:54,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7709 states, 7660 states have (on average 1.9840731070496083) internal successors, (15198), 7708 states have internal predecessors, (15198), 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) [2020-11-12 07:39:54,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7709 states to 7709 states and 15198 transitions. [2020-11-12 07:39:54,131 INFO L78 Accepts]: Start accepts. Automaton has 7709 states and 15198 transitions. Word has length 53 [2020-11-12 07:39:54,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 07:39:54,131 INFO L481 AbstractCegarLoop]: Abstraction has 7709 states and 15198 transitions. [2020-11-12 07:39:54,132 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 07:39:54,132 INFO L276 IsEmpty]: Start isEmpty. Operand 7709 states and 15198 transitions. [2020-11-12 07:39:54,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-12 07:39:54,133 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 07:39:54,134 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 07:39:54,134 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 07:39:54,134 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 07:39:54,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 07:39:54,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1368643278, now seen corresponding path program 1 times [2020-11-12 07:39:54,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 07:39:54,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685773990] [2020-11-12 07:39:54,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 07:39:54,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 07:39:54,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 07:39:54,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685773990] [2020-11-12 07:39:54,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 07:39:54,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-12 07:39:54,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449548012] [2020-11-12 07:39:54,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-12 07:39:54,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 07:39:54,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-12 07:39:54,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-12 07:39:54,219 INFO L87 Difference]: Start difference. First operand 7709 states and 15198 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 07:39:54,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 07:39:54,380 INFO L93 Difference]: Finished difference Result 7693 states and 15181 transitions. [2020-11-12 07:39:54,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-12 07:39:54,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2020-11-12 07:39:54,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 07:39:54,422 INFO L225 Difference]: With dead ends: 7693 [2020-11-12 07:39:54,422 INFO L226 Difference]: Without dead ends: 7693 [2020-11-12 07:39:54,423 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-12 07:39:54,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7693 states. [2020-11-12 07:39:54,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7693 to 7693. [2020-11-12 07:39:54,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7693 states, 7645 states have (on average 1.9857423152387181) internal successors, (15181), 7692 states have internal predecessors, (15181), 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) [2020-11-12 07:39:54,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7693 states to 7693 states and 15181 transitions. [2020-11-12 07:39:54,705 INFO L78 Accepts]: Start accepts. Automaton has 7693 states and 15181 transitions. Word has length 53 [2020-11-12 07:39:54,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 07:39:54,708 INFO L481 AbstractCegarLoop]: Abstraction has 7693 states and 15181 transitions. [2020-11-12 07:39:54,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 07:39:54,709 INFO L276 IsEmpty]: Start isEmpty. Operand 7693 states and 15181 transitions. [2020-11-12 07:39:54,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-11-12 07:39:54,710 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 07:39:54,711 INFO L494 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-11-12 07:39:54,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 07:39:54,711 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 07:39:54,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 07:39:54,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1462519612, now seen corresponding path program 1 times [2020-11-12 07:39:54,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 07:39:54,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768166155] [2020-11-12 07:39:54,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 07:39:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-12 07:39:54,742 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-12 07:39:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-12 07:39:54,764 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-12 07:39:54,779 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-12 07:39:54,779 INFO L595 BasicCegarLoop]: Counterexample might be feasible [2020-11-12 07:39:54,779 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 07:39:54,779 WARN L386 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-11-12 07:39:54,780 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-11-12 07:39:54,798 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,799 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,799 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,799 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,799 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,799 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,800 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,800 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,800 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,800 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,800 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,800 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,801 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,801 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,801 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,801 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,802 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,802 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,802 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,803 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,803 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,803 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,803 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,803 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,803 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,804 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,804 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,804 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,804 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,804 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,804 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,805 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,805 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,805 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,805 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,805 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,806 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,806 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,806 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,806 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,806 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,807 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,807 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,807 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,807 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,807 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,807 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,808 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,808 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,808 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,808 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,808 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,809 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,809 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,809 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,809 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,809 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,809 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,810 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,810 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,810 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,810 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,810 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,810 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,811 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,811 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,811 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,811 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,811 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,811 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,812 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,812 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,812 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,812 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,812 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,813 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,813 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,813 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,813 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,813 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,813 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,814 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,814 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,814 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,814 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,814 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,815 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,815 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,815 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,815 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,815 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,815 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,816 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,816 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,816 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,816 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,816 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,816 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,817 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,817 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,817 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,817 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,817 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,817 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,818 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,818 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,818 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,818 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,819 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,819 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,819 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,819 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,819 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,820 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,820 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,820 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,820 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,822 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,823 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,823 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,823 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,823 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,823 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,824 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,824 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,824 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,826 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,826 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,827 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,827 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,827 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,827 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,827 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,827 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,828 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 07:39:54,839 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2020-11-12 07:39:54,840 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-12 07:39:54,841 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 07:39:54,841 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 07:39:54,841 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 07:39:54,841 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 07:39:54,841 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 07:39:54,841 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 07:39:54,841 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 07:39:54,841 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 07:39:54,845 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 159 places, 182 transitions, 394 flow [2020-11-12 07:50:35,036 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 537566 states, 537552 states have (on average 4.754150296157395) internal successors, (2555603), 537565 states have internal predecessors, (2555603), 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) [2020-11-12 07:51:19,449 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 44413ms [2020-11-12 07:51:20,056 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 537566 states, 537552 states have (on average 4.754150296157395) internal successors, (2555603), 537565 states have internal predecessors, (2555603), 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) [2020-11-12 07:51:21,801 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 537566 states, 520384 states have (on average 3.6814544643955234) internal successors, (1915770), 537565 states have internal predecessors, (1915770), 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) [2020-11-12 07:51:22,421 INFO L276 IsEmpty]: Start isEmpty. Operand has 537566 states, 520384 states have (on average 3.6814544643955234) internal successors, (1915770), 537565 states have internal predecessors, (1915770), 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) [2020-11-12 07:51:22,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-12 07:51:22,422 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 07:51:22,423 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 07:51:22,423 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 07:51:22,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 07:51:22,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1767825819, now seen corresponding path program 1 times [2020-11-12 07:51:22,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 07:51:22,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125111974] [2020-11-12 07:51:22,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 07:51:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 07:51:22,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 07:51:22,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125111974] [2020-11-12 07:51:22,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 07:51:22,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-12 07:51:22,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349080074] [2020-11-12 07:51:22,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-12 07:51:22,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 07:51:22,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-12 07:51:22,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-12 07:51:23,052 INFO L87 Difference]: Start difference. First operand has 537566 states, 520384 states have (on average 3.6814544643955234) internal successors, (1915770), 537565 states have internal predecessors, (1915770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 07:51:29,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 07:51:29,506 INFO L93 Difference]: Finished difference Result 511857 states and 1443995 transitions. [2020-11-12 07:51:29,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-12 07:51:29,506 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2020-11-12 07:51:29,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 07:51:31,757 INFO L225 Difference]: With dead ends: 511857 [2020-11-12 07:51:31,758 INFO L226 Difference]: Without dead ends: 205325 [2020-11-12 07:51:31,760 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-12 07:51:46,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205325 states. [2020-11-12 07:51:50,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205325 to 205325. [2020-11-12 07:51:51,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205325 states, 193128 states have (on average 2.9861594382999876) internal successors, (576711), 205324 states have internal predecessors, (576711), 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) [2020-11-12 07:51:52,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205325 states to 205325 states and 576711 transitions. [2020-11-12 07:51:52,977 INFO L78 Accepts]: Start accepts. Automaton has 205325 states and 576711 transitions. Word has length 53 [2020-11-12 07:51:52,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 07:51:52,980 INFO L481 AbstractCegarLoop]: Abstraction has 205325 states and 576711 transitions. [2020-11-12 07:51:52,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 07:51:52,980 INFO L276 IsEmpty]: Start isEmpty. Operand 205325 states and 576711 transitions. [2020-11-12 07:51:52,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-12 07:51:52,981 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 07:51:52,981 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 07:51:52,981 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 07:51:52,981 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 07:51:52,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 07:51:52,982 INFO L82 PathProgramCache]: Analyzing trace with hash 2021582852, now seen corresponding path program 1 times [2020-11-12 07:51:52,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 07:51:52,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185495717] [2020-11-12 07:51:52,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 07:51:53,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 07:51:53,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 07:51:53,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185495717] [2020-11-12 07:51:53,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 07:51:53,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-12 07:51:53,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589436208] [2020-11-12 07:51:53,035 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-12 07:51:53,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 07:51:53,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-12 07:51:53,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-12 07:51:53,036 INFO L87 Difference]: Start difference. First operand 205325 states and 576711 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 07:51:55,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 07:51:55,244 INFO L93 Difference]: Finished difference Result 205309 states and 576694 transitions. [2020-11-12 07:51:55,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-12 07:51:55,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2020-11-12 07:51:55,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 07:51:55,796 INFO L225 Difference]: With dead ends: 205309 [2020-11-12 07:51:55,797 INFO L226 Difference]: Without dead ends: 205309 [2020-11-12 07:51:55,797 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-12 07:52:10,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205309 states. [2020-11-12 07:52:14,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205309 to 205309. [2020-11-12 07:52:14,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205309 states, 193113 states have (on average 2.9863033560661374) internal successors, (576694), 205308 states have internal predecessors, (576694), 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) [2020-11-12 07:52:16,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205309 states to 205309 states and 576694 transitions. [2020-11-12 07:52:16,557 INFO L78 Accepts]: Start accepts. Automaton has 205309 states and 576694 transitions. Word has length 53 [2020-11-12 07:52:16,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 07:52:16,557 INFO L481 AbstractCegarLoop]: Abstraction has 205309 states and 576694 transitions. [2020-11-12 07:52:16,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 07:52:16,558 INFO L276 IsEmpty]: Start isEmpty. Operand 205309 states and 576694 transitions. [2020-11-12 07:52:16,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-11-12 07:52:16,559 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 07:52:16,560 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 07:52:16,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 07:52:16,560 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 07:52:16,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 07:52:16,561 INFO L82 PathProgramCache]: Analyzing trace with hash 366800726, now seen corresponding path program 1 times [2020-11-12 07:52:16,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 07:52:16,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704243113] [2020-11-12 07:52:16,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 07:52:16,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 07:52:16,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 07:52:16,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704243113] [2020-11-12 07:52:16,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063701541] [2020-11-12 07:52:16,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-12 07:52:17,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 07:52:17,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-12 07:52:17,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-12 07:52:17,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-12 07:52:17,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-12 07:52:17,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-11-12 07:52:17,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7620445] [2020-11-12 07:52:17,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-12 07:52:17,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 07:52:17,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-12 07:52:17,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-12 07:52:17,191 INFO L87 Difference]: Start difference. First operand 205309 states and 576694 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2020-11-12 07:52:18,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 07:52:18,081 INFO L93 Difference]: Finished difference Result 230395 states and 643358 transitions. [2020-11-12 07:52:18,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-12 07:52:18,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 60 [2020-11-12 07:52:18,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 07:52:20,164 INFO L225 Difference]: With dead ends: 230395 [2020-11-12 07:52:20,165 INFO L226 Difference]: Without dead ends: 205309 [2020-11-12 07:52:20,165 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-12 07:52:35,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205309 states. [2020-11-12 07:52:38,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205309 to 205309. [2020-11-12 07:52:38,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205309 states, 193113 states have (on average 2.983439747712479) internal successors, (576141), 205308 states have internal predecessors, (576141), 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) [2020-11-12 07:52:40,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205309 states to 205309 states and 576141 transitions. [2020-11-12 07:52:40,662 INFO L78 Accepts]: Start accepts. Automaton has 205309 states and 576141 transitions. Word has length 60 [2020-11-12 07:52:40,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 07:52:40,666 INFO L481 AbstractCegarLoop]: Abstraction has 205309 states and 576141 transitions. [2020-11-12 07:52:40,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2020-11-12 07:52:40,666 INFO L276 IsEmpty]: Start isEmpty. Operand 205309 states and 576141 transitions. [2020-11-12 07:52:40,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-11-12 07:52:40,669 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 07:52:40,669 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 07:52:40,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-11-12 07:52:40,883 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 07:52:40,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 07:52:40,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1952825141, now seen corresponding path program 1 times [2020-11-12 07:52:40,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 07:52:40,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543841354] [2020-11-12 07:52:40,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 07:52:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 07:52:41,204 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 07:52:41,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543841354] [2020-11-12 07:52:41,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690388031] [2020-11-12 07:52:41,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-12 07:52:41,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 07:52:41,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-12 07:52:41,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-12 07:52:41,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 07:52:41,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-12 07:52:41,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-11-12 07:52:41,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601006671] [2020-11-12 07:52:41,643 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 07:52:41,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 07:52:41,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 07:52:41,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-12 07:52:41,645 INFO L87 Difference]: Start difference. First operand 205309 states and 576141 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 07:52:42,181 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-11-12 07:52:43,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 07:52:43,594 INFO L93 Difference]: Finished difference Result 205011 states and 575759 transitions. [2020-11-12 07:52:43,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-12 07:52:43,595 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2020-11-12 07:52:43,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 07:52:45,623 INFO L225 Difference]: With dead ends: 205011 [2020-11-12 07:52:45,623 INFO L226 Difference]: Without dead ends: 205011 [2020-11-12 07:52:45,624 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown