/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.epf -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-17 19:09:41,731 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-17 19:09:41,736 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-17 19:09:41,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-17 19:09:41,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-17 19:09:41,777 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-17 19:09:41,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-17 19:09:41,781 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-17 19:09:41,783 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-17 19:09:41,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-17 19:09:41,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-17 19:09:41,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-17 19:09:41,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-17 19:09:41,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-17 19:09:41,791 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-17 19:09:41,792 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-17 19:09:41,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-17 19:09:41,795 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-17 19:09:41,797 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-17 19:09:41,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-17 19:09:41,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-17 19:09:41,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-17 19:09:41,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-17 19:09:41,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-17 19:09:41,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-17 19:09:41,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-17 19:09:41,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-17 19:09:41,816 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-17 19:09:41,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-17 19:09:41,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-17 19:09:41,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-17 19:09:41,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-17 19:09:41,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-17 19:09:41,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-17 19:09:41,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-17 19:09:41,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-17 19:09:41,831 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-17 19:09:41,831 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-17 19:09:41,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-17 19:09:41,833 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-17 19:09:41,834 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-17 19:09:41,836 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2020-12-17 19:09:41,890 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-17 19:09:41,891 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-17 19:09:41,894 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-17 19:09:41,894 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-17 19:09:41,895 INFO L138 SettingsManager]: * Use SBE=true [2020-12-17 19:09:41,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-17 19:09:41,896 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-17 19:09:41,897 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-17 19:09:41,897 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-17 19:09:41,897 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-17 19:09:41,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-17 19:09:41,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-17 19:09:41,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-17 19:09:41,899 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-17 19:09:41,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-17 19:09:41,899 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-17 19:09:41,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-17 19:09:41,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-17 19:09:41,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-17 19:09:41,900 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-17 19:09:41,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-17 19:09:41,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-17 19:09:41,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-17 19:09:41,902 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-17 19:09:41,902 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-17 19:09:41,902 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-17 19:09:41,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-17 19:09:41,902 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-17 19:09:41,903 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-17 19:09:41,903 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-17 19:09:41,903 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-17 19:09:42,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-17 19:09:42,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-17 19:09:42,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-17 19:09:42,337 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-17 19:09:42,337 INFO L275 PluginConnector]: CDTParser initialized [2020-12-17 19:09:42,338 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2020-12-17 19:09:42,427 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8b5b29f2/bcafece5bd1b488dbccd280085bb1b60/FLAG324549a20 [2020-12-17 19:09:43,088 INFO L306 CDTParser]: Found 1 translation units. [2020-12-17 19:09:43,089 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2020-12-17 19:09:43,104 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8b5b29f2/bcafece5bd1b488dbccd280085bb1b60/FLAG324549a20 [2020-12-17 19:09:43,405 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8b5b29f2/bcafece5bd1b488dbccd280085bb1b60 [2020-12-17 19:09:43,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-17 19:09:43,414 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-17 19:09:43,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-17 19:09:43,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-17 19:09:43,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-17 19:09:43,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:09:43" (1/1) ... [2020-12-17 19:09:43,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ad83744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:09:43, skipping insertion in model container [2020-12-17 19:09:43,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:09:43" (1/1) ... [2020-12-17 19:09:43,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-17 19:09:43,488 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-17 19:09:43,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 19:09:43,900 INFO L203 MainTranslator]: Completed pre-run [2020-12-17 19:09:43,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 19:09:44,031 INFO L208 MainTranslator]: Completed translation [2020-12-17 19:09:44,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:09:44 WrapperNode [2020-12-17 19:09:44,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-17 19:09:44,033 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-17 19:09:44,034 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-17 19:09:44,034 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-17 19:09:44,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:09:44" (1/1) ... [2020-12-17 19:09:44,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:09:44" (1/1) ... [2020-12-17 19:09:44,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-17 19:09:44,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-17 19:09:44,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-17 19:09:44,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-17 19:09:44,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:09:44" (1/1) ... [2020-12-17 19:09:44,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:09:44" (1/1) ... [2020-12-17 19:09:44,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:09:44" (1/1) ... [2020-12-17 19:09:44,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:09:44" (1/1) ... [2020-12-17 19:09:44,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:09:44" (1/1) ... [2020-12-17 19:09:44,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:09:44" (1/1) ... [2020-12-17 19:09:44,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:09:44" (1/1) ... [2020-12-17 19:09:44,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-17 19:09:44,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-17 19:09:44,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-17 19:09:44,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-17 19:09:44,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:09:44" (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 [2020-12-17 19:09:44,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-17 19:09:44,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-17 19:09:44,257 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-12-17 19:09:44,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-17 19:09:44,257 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2020-12-17 19:09:44,258 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2020-12-17 19:09:44,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-17 19:09:44,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-17 19:09:44,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-17 19:09:44,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-17 19:09:44,262 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-17 19:09:44,843 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-17 19:09:44,843 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-12-17 19:09:44,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:09:44 BoogieIcfgContainer [2020-12-17 19:09:44,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-17 19:09:44,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-17 19:09:44,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-17 19:09:44,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-17 19:09:44,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 07:09:43" (1/3) ... [2020-12-17 19:09:44,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b92a626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 07:09:44, skipping insertion in model container [2020-12-17 19:09:44,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:09:44" (2/3) ... [2020-12-17 19:09:44,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b92a626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 07:09:44, skipping insertion in model container [2020-12-17 19:09:44,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:09:44" (3/3) ... [2020-12-17 19:09:44,855 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2020-12-17 19:09:44,872 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-17 19:09:44,872 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-17 19:09:44,876 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-17 19:09:44,877 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-17 19:09:44,911 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,912 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,912 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,912 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,913 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,913 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,913 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,913 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,913 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,914 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,914 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,914 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,914 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,914 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,915 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,915 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,915 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,915 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,916 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,916 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,916 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,916 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,917 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,917 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,917 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,918 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,918 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,918 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,918 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,918 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,919 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,919 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,919 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,919 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,919 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,920 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,920 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,920 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,921 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,921 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,921 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,921 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,921 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,922 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,922 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,923 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,923 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,923 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,924 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,924 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,924 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,924 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,925 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,925 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,925 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,925 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,925 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,926 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,926 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,926 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,926 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,926 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,927 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,927 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,927 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,927 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,928 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,928 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,928 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,928 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,928 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,929 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,931 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,932 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,932 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,932 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,933 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,933 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,933 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,933 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,933 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,934 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,934 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,934 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,934 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 19:09:44,951 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-12-17 19:09:44,967 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-17 19:09:45,008 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-17 19:09:45,009 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-17 19:09:45,009 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-17 19:09:45,009 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-17 19:09:45,009 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-17 19:09:45,009 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-17 19:09:45,009 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-17 19:09:45,009 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-17 19:09:45,033 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 97 places, 103 transitions, 214 flow [2020-12-17 19:09:45,109 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 660 states, 658 states have (on average 2.234042553191489) internal successors, (1470), 659 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 19:09:45,114 INFO L276 IsEmpty]: Start isEmpty. Operand has 660 states, 658 states have (on average 2.234042553191489) internal successors, (1470), 659 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 19:09:45,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-17 19:09:45,150 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 19:09:45,151 INFO L504 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] [2020-12-17 19:09:45,151 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 19:09:45,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 19:09:45,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1950299108, now seen corresponding path program 1 times [2020-12-17 19:09:45,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 19:09:45,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763677677] [2020-12-17 19:09:45,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 19:09:45,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 19:09:45,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 19:09:45,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763677677] [2020-12-17 19:09:45,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 19:09:45,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-17 19:09:45,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930507080] [2020-12-17 19:09:45,653 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-17 19:09:45,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 19:09:45,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-17 19:09:45,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-17 19:09:45,673 INFO L87 Difference]: Start difference. First operand has 660 states, 658 states have (on average 2.234042553191489) internal successors, (1470), 659 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 19:09:46,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 19:09:46,178 INFO L93 Difference]: Finished difference Result 753 states and 1377 transitions. [2020-12-17 19:09:46,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-12-17 19:09:46,180 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2020-12-17 19:09:46,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 19:09:46,196 INFO L225 Difference]: With dead ends: 753 [2020-12-17 19:09:46,196 INFO L226 Difference]: Without dead ends: 347 [2020-12-17 19:09:46,198 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=150, Invalid=356, Unknown=0, NotChecked=0, Total=506 [2020-12-17 19:09:46,198 INFO L78 Accepts]: Start accepts. Automaton has 347 states. Word has length 48 [2020-12-17 19:09:46,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 19:09:46,200 INFO L481 AbstractCegarLoop]: Abstraction has 347 states. [2020-12-17 19:09:46,200 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 19:09:46,200 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states. [2020-12-17 19:09:46,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-12-17 19:09:46,205 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 19:09:46,205 INFO L504 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] [2020-12-17 19:09:46,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-17 19:09:46,206 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 19:09:46,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 19:09:46,207 INFO L82 PathProgramCache]: Analyzing trace with hash 424723398, now seen corresponding path program 1 times [2020-12-17 19:09:46,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 19:09:46,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501131351] [2020-12-17 19:09:46,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 19:09:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 19:09:46,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 19:09:46,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501131351] [2020-12-17 19:09:46,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 19:09:46,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 19:09:46,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257883884] [2020-12-17 19:09:46,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 19:09:46,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 19:09:46,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 19:09:46,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-17 19:09:46,348 INFO L87 Difference]: Start difference. First operand 347 states. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 19:09:46,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 19:09:46,443 INFO L93 Difference]: Finished difference Result 139 states and 197 transitions. [2020-12-17 19:09:46,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-17 19:09:46,444 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2020-12-17 19:09:46,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 19:09:46,446 INFO L225 Difference]: With dead ends: 139 [2020-12-17 19:09:46,446 INFO L226 Difference]: Without dead ends: 127 [2020-12-17 19:09:46,447 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-17 19:09:46,447 INFO L78 Accepts]: Start accepts. Automaton has 127 states. Word has length 58 [2020-12-17 19:09:46,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 19:09:46,448 INFO L481 AbstractCegarLoop]: Abstraction has 127 states. [2020-12-17 19:09:46,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 19:09:46,448 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states. [2020-12-17 19:09:46,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-12-17 19:09:46,450 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 19:09:46,451 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 19:09:46,451 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-17 19:09:46,451 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 19:09:46,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 19:09:46,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1074228917, now seen corresponding path program 1 times [2020-12-17 19:09:46,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 19:09:46,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665138532] [2020-12-17 19:09:46,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 19:09:46,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 19:09:46,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 19:09:46,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665138532] [2020-12-17 19:09:46,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 19:09:46,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-12-17 19:09:46,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613540466] [2020-12-17 19:09:46,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-12-17 19:09:46,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 19:09:46,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-12-17 19:09:46,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2020-12-17 19:09:46,877 INFO L87 Difference]: Start difference. First operand 127 states. Second operand has 17 states, 17 states have (on average 4.294117647058823) internal successors, (73), 17 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 19:09:47,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 19:09:47,890 INFO L93 Difference]: Finished difference Result 115 states and 157 transitions. [2020-12-17 19:09:47,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-17 19:09:47,891 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.294117647058823) internal successors, (73), 17 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2020-12-17 19:09:47,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 19:09:47,892 INFO L225 Difference]: With dead ends: 115 [2020-12-17 19:09:47,892 INFO L226 Difference]: Without dead ends: 0 [2020-12-17 19:09:47,893 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=229, Invalid=961, Unknown=0, NotChecked=0, Total=1190 [2020-12-17 19:09:47,894 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 73 [2020-12-17 19:09:47,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 19:09:47,894 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2020-12-17 19:09:47,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 4.294117647058823) internal successors, (73), 17 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 19:09:47,894 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2020-12-17 19:09:47,896 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-17 19:09:47,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-17 19:09:47,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 07:09:47 BasicIcfg [2020-12-17 19:09:47,901 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-17 19:09:47,905 INFO L168 Benchmark]: Toolchain (without parser) took 4488.90 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 276.5 MB in the beginning and 203.1 MB in the end (delta: 73.4 MB). Peak memory consumption was 135.5 MB. Max. memory is 16.0 GB. [2020-12-17 19:09:47,906 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 19:09:47,907 INFO L168 Benchmark]: CACSL2BoogieTranslator took 615.34 ms. Allocated memory is still 302.0 MB. Free memory was 276.3 MB in the beginning and 246.7 MB in the end (delta: 29.6 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2020-12-17 19:09:47,908 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.84 ms. Allocated memory is still 302.0 MB. Free memory was 246.7 MB in the beginning and 244.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-12-17 19:09:47,911 INFO L168 Benchmark]: Boogie Preprocessor took 34.64 ms. Allocated memory is still 302.0 MB. Free memory was 244.9 MB in the beginning and 243.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 19:09:47,912 INFO L168 Benchmark]: RCFGBuilder took 721.84 ms. Allocated memory is still 302.0 MB. Free memory was 243.3 MB in the beginning and 259.5 MB in the end (delta: -16.2 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.0 GB. [2020-12-17 19:09:47,915 INFO L168 Benchmark]: TraceAbstraction took 3054.14 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 258.5 MB in the beginning and 203.1 MB in the end (delta: 55.4 MB). Peak memory consumption was 118.3 MB. Max. memory is 16.0 GB. [2020-12-17 19:09:47,924 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 615.34 ms. Allocated memory is still 302.0 MB. Free memory was 276.3 MB in the beginning and 246.7 MB in the end (delta: 29.6 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 53.84 ms. Allocated memory is still 302.0 MB. Free memory was 246.7 MB in the beginning and 244.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 34.64 ms. Allocated memory is still 302.0 MB. Free memory was 244.9 MB in the beginning and 243.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 721.84 ms. Allocated memory is still 302.0 MB. Free memory was 243.3 MB in the beginning and 259.5 MB in the end (delta: -16.2 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3054.14 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 258.5 MB in the beginning and 203.1 MB in the end (delta: 55.4 MB). Peak memory consumption was 118.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 683]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 94 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 290 SDtfs, 630 SDslu, 1348 SDs, 0 SdLazy, 396 SolverSat, 54 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=660occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 179 NumberOfCodeBlocks, 179 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 176 ConstructedInterpolants, 0 QuantifiedInterpolants, 48053 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...