/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/pthread-wmm/safe028_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 06:23:44,816 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 06:23:44,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 06:23:44,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 06:23:44,874 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 06:23:44,878 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 06:23:44,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 06:23:44,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 06:23:44,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 06:23:44,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 06:23:44,901 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 06:23:44,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 06:23:44,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 06:23:44,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 06:23:44,908 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 06:23:44,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 06:23:44,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 06:23:44,915 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 06:23:44,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 06:23:44,930 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 06:23:44,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 06:23:44,935 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 06:23:44,937 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 06:23:44,938 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 06:23:44,942 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-12 06:23:44,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-12 06:23:44,947 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-12 06:23:44,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-12 06:23:44,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-12 06:23:44,951 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-12 06:23:44,951 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 06:23:44,952 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 06:23:44,954 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 06:23:44,955 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 06:23:44,956 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 06:23:44,956 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 06:23:44,957 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 06:23:44,957 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 06:23:44,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 06:23:44,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 06:23:44,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 06:23:44,962 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 06:23:45,022 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 06:23:45,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 06:23:45,026 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 06:23:45,027 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 06:23:45,027 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 06:23:45,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 06:23:45,027 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 06:23:45,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 06:23:45,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 06:23:45,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 06:23:45,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 06:23:45,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 06:23:45,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 06:23:45,031 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 06:23:45,031 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 06:23:45,031 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 06:23:45,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 06:23:45,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 06:23:45,032 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 06:23:45,032 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 06:23:45,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 06:23:45,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 06:23:45,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 06:23:45,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 06:23:45,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 06:23:45,034 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 06:23:45,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 06:23:45,034 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 06:23:45,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 06:23:45,035 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 06:23:45,035 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 06:23:45,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 06:23:45,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 06:23:45,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 06:23:45,493 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 06:23:45,494 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 06:23:45,498 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_tso.opt.i [2020-11-12 06:23:45,573 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6390a29f1/82997f9a9bb84335ba8f8377b9629d97/FLAGc48d83b66 [2020-11-12 06:23:46,284 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 06:23:46,285 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_tso.opt.i [2020-11-12 06:23:46,307 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6390a29f1/82997f9a9bb84335ba8f8377b9629d97/FLAGc48d83b66 [2020-11-12 06:23:46,546 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6390a29f1/82997f9a9bb84335ba8f8377b9629d97 [2020-11-12 06:23:46,551 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 06:23:46,562 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 06:23:46,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 06:23:46,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 06:23:46,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 06:23:46,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:23:46" (1/1) ... [2020-11-12 06:23:46,575 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55d49acb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:23:46, skipping insertion in model container [2020-11-12 06:23:46,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:23:46" (1/1) ... [2020-11-12 06:23:46,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 06:23:46,662 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 06:23:47,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:23:47,160 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 06:23:47,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:23:47,374 INFO L208 MainTranslator]: Completed translation [2020-11-12 06:23:47,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:23:47 WrapperNode [2020-11-12 06:23:47,375 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 06:23:47,377 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 06:23:47,377 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 06:23:47,377 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 06:23:47,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:23:47" (1/1) ... [2020-11-12 06:23:47,403 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:23:47" (1/1) ... [2020-11-12 06:23:47,429 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 06:23:47,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 06:23:47,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 06:23:47,430 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 06:23:47,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:23:47" (1/1) ... [2020-11-12 06:23:47,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:23:47" (1/1) ... [2020-11-12 06:23:47,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:23:47" (1/1) ... [2020-11-12 06:23:47,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:23:47" (1/1) ... [2020-11-12 06:23:47,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:23:47" (1/1) ... [2020-11-12 06:23:47,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:23:47" (1/1) ... [2020-11-12 06:23:47,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:23:47" (1/1) ... [2020-11-12 06:23:47,459 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 06:23:47,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 06:23:47,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 06:23:47,460 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 06:23:47,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:23:47" (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 06:23:47,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 06:23:47,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 06:23:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 06:23:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 06:23:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 06:23:47,558 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 06:23:47,559 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 06:23:47,559 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 06:23:47,560 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 06:23:47,561 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 06:23:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 06:23:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 06:23:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 06:23:47,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 06:23:47,563 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 06:23:48,076 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 06:23:48,077 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 06:23:48,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:23:48 BoogieIcfgContainer [2020-11-12 06:23:48,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 06:23:48,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 06:23:48,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 06:23:48,084 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 06:23:48,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 06:23:46" (1/3) ... [2020-11-12 06:23:48,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b9522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:23:48, skipping insertion in model container [2020-11-12 06:23:48,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:23:47" (2/3) ... [2020-11-12 06:23:48,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b9522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:23:48, skipping insertion in model container [2020-11-12 06:23:48,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:23:48" (3/3) ... [2020-11-12 06:23:48,088 INFO L111 eAbstractionObserver]: Analyzing ICFG safe028_tso.opt.i [2020-11-12 06:23:48,104 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 06:23:48,104 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 06:23:48,108 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 06:23:48,109 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 06:23:48,138 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,138 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,138 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,139 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,139 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,139 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,139 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,139 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,140 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,140 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,140 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,140 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,141 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,141 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,141 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,141 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,142 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,142 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,142 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,142 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,142 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,143 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,143 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,143 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,144 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,144 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,144 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,144 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,144 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,145 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,145 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,145 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,146 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,146 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,146 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,146 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,149 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,149 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,150 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,150 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,156 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,156 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,156 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,157 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,165 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,165 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,165 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,165 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:23:48,169 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 06:23:48,183 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-12 06:23:48,208 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 06:23:48,208 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 06:23:48,208 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 06:23:48,208 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 06:23:48,208 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 06:23:48,209 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 06:23:48,209 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 06:23:48,209 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 06:23:48,221 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 85 places, 78 transitions, 171 flow [2020-11-12 06:23:48,890 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8448 states, 8446 states have (on average 3.5893914278948613) internal successors, (30316), 8447 states have internal predecessors, (30316), 0 states have call successors, (0), 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 06:23:49,420 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 526ms [2020-11-12 06:23:49,455 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 8448 states, 8446 states have (on average 3.5893914278948613) internal successors, (30316), 8447 states have internal predecessors, (30316), 0 states have call successors, (0), 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 06:23:49,553 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 8448 states, 7838 states have (on average 1.368844092880837) internal successors, (10729), 8447 states have internal predecessors, (10729), 0 states have call successors, (0), 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 06:23:49,572 INFO L276 IsEmpty]: Start isEmpty. Operand has 8448 states, 7838 states have (on average 1.368844092880837) internal successors, (10729), 8447 states have internal predecessors, (10729), 0 states have call successors, (0), 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 06:23:49,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-12 06:23:49,593 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:23:49,594 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] [2020-11-12 06:23:49,594 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:23:49,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:23:49,601 INFO L82 PathProgramCache]: Analyzing trace with hash 122866376, now seen corresponding path program 1 times [2020-11-12 06:23:49,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:23:49,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87532685] [2020-11-12 06:23:49,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:23:49,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:23:50,187 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 06:23:50,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87532685] [2020-11-12 06:23:50,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:23:50,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:23:50,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247895982] [2020-11-12 06:23:50,193 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:23:50,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:23:50,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:23:50,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:23:50,221 INFO L87 Difference]: Start difference. First operand has 8448 states, 7838 states have (on average 1.368844092880837) internal successors, (10729), 8447 states have internal predecessors, (10729), 0 states have call successors, (0), 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 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 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 06:23:50,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:23:50,503 INFO L93 Difference]: Finished difference Result 10464 states and 12039 transitions. [2020-11-12 06:23:50,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:23:50,505 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2020-11-12 06:23:50,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:23:50,541 INFO L225 Difference]: With dead ends: 10464 [2020-11-12 06:23:50,541 INFO L226 Difference]: Without dead ends: 3339 [2020-11-12 06:23:50,543 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:23:50,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3339 states. [2020-11-12 06:23:50,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3339 to 3339. [2020-11-12 06:23:50,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3339 states, 3129 states have (on average 1.4215404282518376) internal successors, (4448), 3338 states have internal predecessors, (4448), 0 states have call successors, (0), 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 06:23:50,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3339 states to 3339 states and 4448 transitions. [2020-11-12 06:23:50,794 INFO L78 Accepts]: Start accepts. Automaton has 3339 states and 4448 transitions. Word has length 42 [2020-11-12 06:23:50,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:23:50,795 INFO L481 AbstractCegarLoop]: Abstraction has 3339 states and 4448 transitions. [2020-11-12 06:23:50,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 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 06:23:50,795 INFO L276 IsEmpty]: Start isEmpty. Operand 3339 states and 4448 transitions. [2020-11-12 06:23:50,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-12 06:23:50,802 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:23:50,802 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] [2020-11-12 06:23:50,802 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 06:23:50,802 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:23:50,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:23:50,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1872350423, now seen corresponding path program 1 times [2020-11-12 06:23:50,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:23:50,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401796623] [2020-11-12 06:23:50,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:23:50,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:23:51,020 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 06:23:51,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401796623] [2020-11-12 06:23:51,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:23:51,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:23:51,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106193949] [2020-11-12 06:23:51,022 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:23:51,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:23:51,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:23:51,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:23:51,024 INFO L87 Difference]: Start difference. First operand 3339 states and 4448 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 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 06:23:51,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:23:51,258 INFO L93 Difference]: Finished difference Result 4599 states and 6500 transitions. [2020-11-12 06:23:51,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:23:51,258 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2020-11-12 06:23:51,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:23:51,270 INFO L225 Difference]: With dead ends: 4599 [2020-11-12 06:23:51,270 INFO L226 Difference]: Without dead ends: 2261 [2020-11-12 06:23:51,271 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 06:23:51,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2261 states. [2020-11-12 06:23:51,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2261 to 2261. [2020-11-12 06:23:51,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2261 states, 2121 states have (on average 1.454031117397454) internal successors, (3084), 2260 states have internal predecessors, (3084), 0 states have call successors, (0), 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 06:23:51,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 3084 transitions. [2020-11-12 06:23:51,338 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 3084 transitions. Word has length 44 [2020-11-12 06:23:51,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:23:51,339 INFO L481 AbstractCegarLoop]: Abstraction has 2261 states and 3084 transitions. [2020-11-12 06:23:51,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 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 06:23:51,340 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 3084 transitions. [2020-11-12 06:23:51,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-12 06:23:51,344 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:23:51,344 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] [2020-11-12 06:23:51,345 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 06:23:51,345 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:23:51,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:23:51,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1542852296, now seen corresponding path program 1 times [2020-11-12 06:23:51,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:23:51,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547535782] [2020-11-12 06:23:51,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:23:51,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:23:51,490 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 06:23:51,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547535782] [2020-11-12 06:23:51,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:23:51,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:23:51,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598163469] [2020-11-12 06:23:51,491 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:23:51,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:23:51,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:23:51,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:23:51,493 INFO L87 Difference]: Start difference. First operand 2261 states and 3084 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 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 06:23:51,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:23:51,643 INFO L93 Difference]: Finished difference Result 2717 states and 3860 transitions. [2020-11-12 06:23:51,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:23:51,643 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2020-11-12 06:23:51,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:23:51,654 INFO L225 Difference]: With dead ends: 2717 [2020-11-12 06:23:51,654 INFO L226 Difference]: Without dead ends: 2149 [2020-11-12 06:23:51,655 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:23:51,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2149 states. [2020-11-12 06:23:51,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2149 to 2149. [2020-11-12 06:23:51,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2149 states, 2017 states have (on average 1.4506693108577096) internal successors, (2926), 2148 states have internal predecessors, (2926), 0 states have call successors, (0), 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 06:23:51,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2149 states to 2149 states and 2926 transitions. [2020-11-12 06:23:51,741 INFO L78 Accepts]: Start accepts. Automaton has 2149 states and 2926 transitions. Word has length 46 [2020-11-12 06:23:51,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:23:51,741 INFO L481 AbstractCegarLoop]: Abstraction has 2149 states and 2926 transitions. [2020-11-12 06:23:51,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 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 06:23:51,742 INFO L276 IsEmpty]: Start isEmpty. Operand 2149 states and 2926 transitions. [2020-11-12 06:23:51,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-12 06:23:51,746 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:23:51,746 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] [2020-11-12 06:23:51,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 06:23:51,747 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:23:51,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:23:51,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1526695926, now seen corresponding path program 1 times [2020-11-12 06:23:51,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:23:51,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294607380] [2020-11-12 06:23:51,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:23:51,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:23:51,883 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 06:23:51,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294607380] [2020-11-12 06:23:51,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:23:51,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:23:51,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535575199] [2020-11-12 06:23:51,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:23:51,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:23:51,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:23:51,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:23:51,886 INFO L87 Difference]: Start difference. First operand 2149 states and 2926 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 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 06:23:52,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:23:52,057 INFO L93 Difference]: Finished difference Result 2131 states and 3066 transitions. [2020-11-12 06:23:52,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:23:52,058 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2020-11-12 06:23:52,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:23:52,066 INFO L225 Difference]: With dead ends: 2131 [2020-11-12 06:23:52,066 INFO L226 Difference]: Without dead ends: 1548 [2020-11-12 06:23:52,067 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-12 06:23:52,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2020-11-12 06:23:52,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1548. [2020-11-12 06:23:52,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1548 states, 1458 states have (on average 1.4423868312757202) internal successors, (2103), 1547 states have internal predecessors, (2103), 0 states have call successors, (0), 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 06:23:52,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 2103 transitions. [2020-11-12 06:23:52,117 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 2103 transitions. Word has length 47 [2020-11-12 06:23:52,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:23:52,118 INFO L481 AbstractCegarLoop]: Abstraction has 1548 states and 2103 transitions. [2020-11-12 06:23:52,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 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 06:23:52,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 2103 transitions. [2020-11-12 06:23:52,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-12 06:23:52,122 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:23:52,122 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] [2020-11-12 06:23:52,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 06:23:52,122 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:23:52,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:23:52,123 INFO L82 PathProgramCache]: Analyzing trace with hash 582151447, now seen corresponding path program 1 times [2020-11-12 06:23:52,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:23:52,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570200301] [2020-11-12 06:23:52,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:23:52,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:23:52,264 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 06:23:52,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570200301] [2020-11-12 06:23:52,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:23:52,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-12 06:23:52,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917551897] [2020-11-12 06:23:52,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-12 06:23:52,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:23:52,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-12 06:23:52,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-12 06:23:52,267 INFO L87 Difference]: Start difference. First operand 1548 states and 2103 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 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 06:23:52,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:23:52,466 INFO L93 Difference]: Finished difference Result 1089 states and 1614 transitions. [2020-11-12 06:23:52,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-12 06:23:52,467 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2020-11-12 06:23:52,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:23:52,470 INFO L225 Difference]: With dead ends: 1089 [2020-11-12 06:23:52,471 INFO L226 Difference]: Without dead ends: 595 [2020-11-12 06:23:52,471 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-12 06:23:52,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2020-11-12 06:23:52,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 595. [2020-11-12 06:23:52,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 568 states have (on average 1.4330985915492958) internal successors, (814), 594 states have internal predecessors, (814), 0 states have call successors, (0), 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 06:23:52,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 814 transitions. [2020-11-12 06:23:52,489 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 814 transitions. Word has length 49 [2020-11-12 06:23:52,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:23:52,490 INFO L481 AbstractCegarLoop]: Abstraction has 595 states and 814 transitions. [2020-11-12 06:23:52,490 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 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 06:23:52,490 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 814 transitions. [2020-11-12 06:23:52,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-12 06:23:52,492 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:23:52,492 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 06:23:52,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 06:23:52,493 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:23:52,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:23:52,493 INFO L82 PathProgramCache]: Analyzing trace with hash 18899967, now seen corresponding path program 1 times [2020-11-12 06:23:52,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:23:52,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12446959] [2020-11-12 06:23:52,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:23:52,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:23:52,615 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 06:23:52,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12446959] [2020-11-12 06:23:52,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:23:52,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:23:52,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851469020] [2020-11-12 06:23:52,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:23:52,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:23:52,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:23:52,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:23:52,622 INFO L87 Difference]: Start difference. First operand 595 states and 814 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 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 06:23:52,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:23:52,761 INFO L93 Difference]: Finished difference Result 972 states and 1391 transitions. [2020-11-12 06:23:52,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 06:23:52,762 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 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 06:23:52,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:23:52,767 INFO L225 Difference]: With dead ends: 972 [2020-11-12 06:23:52,767 INFO L226 Difference]: Without dead ends: 541 [2020-11-12 06:23:52,768 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:23:52,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2020-11-12 06:23:52,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2020-11-12 06:23:52,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 514 states have (on average 1.4474708171206225) internal successors, (744), 540 states have internal predecessors, (744), 0 states have call successors, (0), 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 06:23:52,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 744 transitions. [2020-11-12 06:23:52,783 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 744 transitions. Word has length 53 [2020-11-12 06:23:52,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:23:52,783 INFO L481 AbstractCegarLoop]: Abstraction has 541 states and 744 transitions. [2020-11-12 06:23:52,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 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 06:23:52,784 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 744 transitions. [2020-11-12 06:23:52,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-12 06:23:52,785 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:23:52,785 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 06:23:52,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 06:23:52,786 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:23:52,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:23:52,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1653762731, now seen corresponding path program 2 times [2020-11-12 06:23:52,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:23:52,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752301068] [2020-11-12 06:23:52,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:23:52,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:23:52,953 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 06:23:52,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752301068] [2020-11-12 06:23:52,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:23:52,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:23:52,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010599251] [2020-11-12 06:23:52,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:23:52,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:23:52,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:23:52,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:23:52,956 INFO L87 Difference]: Start difference. First operand 541 states and 744 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 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 06:23:53,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:23:53,046 INFO L93 Difference]: Finished difference Result 433 states and 636 transitions. [2020-11-12 06:23:53,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 06:23:53,046 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 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 06:23:53,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:23:53,047 INFO L225 Difference]: With dead ends: 433 [2020-11-12 06:23:53,047 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 06:23:53,047 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:23:53,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 06:23:53,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 06:23:53,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:23:53,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 06:23:53,048 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 53 [2020-11-12 06:23:53,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:23:53,049 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 06:23:53,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 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 06:23:53,049 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 06:23:53,049 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 06:23:53,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-12 06:23:53,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 06:23:53 BasicIcfg [2020-11-12 06:23:53,055 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 06:23:53,058 INFO L168 Benchmark]: Toolchain (without parser) took 6503.82 ms. Allocated memory was 302.0 MB in the beginning and 627.0 MB in the end (delta: 325.1 MB). Free memory was 275.8 MB in the beginning and 472.0 MB in the end (delta: -196.2 MB). Peak memory consumption was 130.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:23:53,059 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 302.0 MB. Free memory was 272.9 MB in the beginning and 272.7 MB in the end (delta: 136.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 06:23:53,059 INFO L168 Benchmark]: CACSL2BoogieTranslator took 810.40 ms. Allocated memory is still 302.0 MB. Free memory was 275.2 MB in the beginning and 276.6 MB in the end (delta: -1.4 MB). Peak memory consumption was 29.8 MB. Max. memory is 16.0 GB. [2020-11-12 06:23:53,060 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.41 ms. Allocated memory is still 302.0 MB. Free memory was 276.6 MB in the beginning and 274.5 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 06:23:53,061 INFO L168 Benchmark]: Boogie Preprocessor took 29.27 ms. Allocated memory is still 302.0 MB. Free memory was 274.5 MB in the beginning and 273.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:23:53,062 INFO L168 Benchmark]: RCFGBuilder took 619.66 ms. Allocated memory is still 302.0 MB. Free memory was 273.5 MB in the beginning and 250.4 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:23:53,063 INFO L168 Benchmark]: TraceAbstraction took 4974.35 ms. Allocated memory was 302.0 MB in the beginning and 627.0 MB in the end (delta: 325.1 MB). Free memory was 249.4 MB in the beginning and 472.0 MB in the end (delta: -222.6 MB). Peak memory consumption was 102.4 MB. Max. memory is 16.0 GB. [2020-11-12 06:23:53,067 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 302.0 MB. Free memory was 272.9 MB in the beginning and 272.7 MB in the end (delta: 136.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 810.40 ms. Allocated memory is still 302.0 MB. Free memory was 275.2 MB in the beginning and 276.6 MB in the end (delta: -1.4 MB). Peak memory consumption was 29.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 52.41 ms. Allocated memory is still 302.0 MB. Free memory was 276.6 MB in the beginning and 274.5 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.27 ms. Allocated memory is still 302.0 MB. Free memory was 274.5 MB in the beginning and 273.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 619.66 ms. Allocated memory is still 302.0 MB. Free memory was 273.5 MB in the beginning and 250.4 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4974.35 ms. Allocated memory was 302.0 MB in the beginning and 627.0 MB in the end (delta: 325.1 MB). Free memory was 249.4 MB in the beginning and 472.0 MB in the end (delta: -222.6 MB). Peak memory consumption was 102.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: 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 4 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 462 SDtfs, 665 SDslu, 1766 SDs, 0 SdLazy, 241 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8448occurred 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: 0.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 334 NumberOfCodeBlocks, 334 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 327 ConstructedInterpolants, 0 QuantifiedInterpolants, 40983 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...