/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-New_States.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 12:13:22,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 12:13:22,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 12:13:22,904 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 12:13:22,905 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 12:13:22,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 12:13:22,912 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 12:13:22,921 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 12:13:22,924 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 12:13:22,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 12:13:22,933 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 12:13:22,934 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 12:13:22,934 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 12:13:22,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 12:13:22,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 12:13:22,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 12:13:22,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 12:13:22,940 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 12:13:22,942 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 12:13:22,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 12:13:22,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 12:13:22,948 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 12:13:22,949 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 12:13:22,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 12:13:22,953 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-12 12:13:22,953 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-12 12:13:22,954 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-12 12:13:22,955 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-12 12:13:22,956 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-12 12:13:22,957 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-12 12:13:22,957 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 12:13:22,958 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 12:13:22,959 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 12:13:22,960 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 12:13:22,961 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 12:13:22,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 12:13:22,962 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 12:13:22,963 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 12:13:22,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 12:13:22,964 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 12:13:22,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 12:13:22,968 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-New_States.epf [2020-11-12 12:13:22,995 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 12:13:22,996 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 12:13:22,997 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 12:13:22,998 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 12:13:22,998 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 12:13:22,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 12:13:22,998 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 12:13:22,999 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 12:13:22,999 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 12:13:22,999 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 12:13:22,999 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 12:13:23,000 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 12:13:23,000 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 12:13:23,000 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 12:13:23,000 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 12:13:23,000 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 12:13:23,001 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 12:13:23,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 12:13:23,001 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 12:13:23,001 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 12:13:23,002 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 12:13:23,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 12:13:23,002 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 12:13:23,002 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 12:13:23,003 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 12:13:23,003 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 12:13:23,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 12:13:23,003 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 12:13:23,003 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 12:13:23,004 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 12:13:23,004 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=NEW_STATES 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 12:13:23,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 12:13:23,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 12:13:23,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 12:13:23,476 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 12:13:23,476 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 12:13:23,478 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i [2020-11-12 12:13:23,553 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae3c506e2/728b52abc6734b769db717726ec35506/FLAG499876aea [2020-11-12 12:13:24,301 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 12:13:24,302 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i [2020-11-12 12:13:24,326 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae3c506e2/728b52abc6734b769db717726ec35506/FLAG499876aea [2020-11-12 12:13:24,604 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae3c506e2/728b52abc6734b769db717726ec35506 [2020-11-12 12:13:24,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 12:13:24,616 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 12:13:24,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 12:13:24,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 12:13:24,622 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 12:13:24,623 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:13:24" (1/1) ... [2020-11-12 12:13:24,626 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@322fd4a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:24, skipping insertion in model container [2020-11-12 12:13:24,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:13:24" (1/1) ... [2020-11-12 12:13:24,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 12:13:24,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 12:13:25,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:13:25,158 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 12:13:25,234 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:13:25,355 INFO L208 MainTranslator]: Completed translation [2020-11-12 12:13:25,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:25 WrapperNode [2020-11-12 12:13:25,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 12:13:25,359 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 12:13:25,359 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 12:13:25,359 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 12:13:25,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:25" (1/1) ... [2020-11-12 12:13:25,386 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:25" (1/1) ... [2020-11-12 12:13:25,413 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 12:13:25,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 12:13:25,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 12:13:25,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 12:13:25,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:25" (1/1) ... [2020-11-12 12:13:25,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:25" (1/1) ... [2020-11-12 12:13:25,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:25" (1/1) ... [2020-11-12 12:13:25,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:25" (1/1) ... [2020-11-12 12:13:25,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:25" (1/1) ... [2020-11-12 12:13:25,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:25" (1/1) ... [2020-11-12 12:13:25,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:25" (1/1) ... [2020-11-12 12:13:25,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 12:13:25,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 12:13:25,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 12:13:25,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 12:13:25,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:25" (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 12:13:25,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 12:13:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 12:13:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 12:13:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 12:13:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 12:13:25,524 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 12:13:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 12:13:25,524 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 12:13:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 12:13:25,524 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 12:13:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 12:13:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 12:13:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 12:13:25,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 12:13:25,527 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 12:13:26,144 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 12:13:26,145 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 12:13:26,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:13:26 BoogieIcfgContainer [2020-11-12 12:13:26,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 12:13:26,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 12:13:26,153 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 12:13:26,156 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 12:13:26,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:13:24" (1/3) ... [2020-11-12 12:13:26,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72202c79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:13:26, skipping insertion in model container [2020-11-12 12:13:26,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:25" (2/3) ... [2020-11-12 12:13:26,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72202c79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:13:26, skipping insertion in model container [2020-11-12 12:13:26,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:13:26" (3/3) ... [2020-11-12 12:13:26,161 INFO L111 eAbstractionObserver]: Analyzing ICFG safe000_tso.oepc.i [2020-11-12 12:13:26,180 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 12:13:26,181 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 12:13:26,184 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 12:13:26,185 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 12:13:26,236 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,236 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,237 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,237 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,237 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,237 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,238 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,238 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,238 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,239 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,239 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,239 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,240 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,240 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,240 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,241 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,241 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,241 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,241 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,242 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,242 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,242 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,242 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,243 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,246 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,246 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,246 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,246 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,247 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,248 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,248 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,248 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,248 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,252 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,253 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,253 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,265 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,266 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,268 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,269 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,277 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,278 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,278 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,279 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,282 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,282 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,282 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,283 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:26,285 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 12:13:26,299 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-12 12:13:26,324 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 12:13:26,325 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 12:13:26,325 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 12:13:26,325 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 12:13:26,325 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 12:13:26,325 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 12:13:26,326 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 12:13:26,326 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 12:13:26,339 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2020-11-12 12:13:27,453 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 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 12:13:28,455 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 998ms [2020-11-12 12:13:28,514 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 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 12:13:28,705 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 34634 states, 31697 states have (on average 1.2133955894879642) internal successors, (38461), 34633 states have internal predecessors, (38461), 0 states have call successors, (0), 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 12:13:28,755 INFO L276 IsEmpty]: Start isEmpty. Operand has 34634 states, 31697 states have (on average 1.2133955894879642) internal successors, (38461), 34633 states have internal predecessors, (38461), 0 states have call successors, (0), 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 12:13:28,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-12 12:13:28,787 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:13:28,788 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 12:13:28,788 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:13:28,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:13:28,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1557079206, now seen corresponding path program 1 times [2020-11-12 12:13:28,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:13:28,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137754066] [2020-11-12 12:13:28,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:13:29,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:13:29,352 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 12:13:29,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137754066] [2020-11-12 12:13:29,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:13:29,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:13:29,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439108402] [2020-11-12 12:13:29,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:13:29,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:13:29,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:13:29,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:13:29,402 INFO L87 Difference]: Start difference. First operand has 34634 states, 31697 states have (on average 1.2133955894879642) internal successors, (38461), 34633 states have internal predecessors, (38461), 0 states have call successors, (0), 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 12:13:29,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:13:29,762 INFO L93 Difference]: Finished difference Result 14109 states and 16579 transitions. [2020-11-12 12:13:29,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:13:29,766 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 12:13:29,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:13:29,809 INFO L225 Difference]: With dead ends: 14109 [2020-11-12 12:13:29,809 INFO L226 Difference]: Without dead ends: 4812 [2020-11-12 12:13:29,811 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:13:29,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4812 states. [2020-11-12 12:13:30,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4812 to 4812. [2020-11-12 12:13:30,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4812 states, 4567 states have (on average 1.3676373987300197) internal successors, (6246), 4811 states have internal predecessors, (6246), 0 states have call successors, (0), 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 12:13:30,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4812 states to 4812 states and 6246 transitions. [2020-11-12 12:13:30,139 INFO L78 Accepts]: Start accepts. Automaton has 4812 states and 6246 transitions. Word has length 42 [2020-11-12 12:13:30,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:13:30,140 INFO L481 AbstractCegarLoop]: Abstraction has 4812 states and 6246 transitions. [2020-11-12 12:13:30,142 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 12:13:30,145 INFO L276 IsEmpty]: Start isEmpty. Operand 4812 states and 6246 transitions. [2020-11-12 12:13:30,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-12 12:13:30,158 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:13:30,159 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 12:13:30,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 12:13:30,165 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:13:30,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:13:30,167 INFO L82 PathProgramCache]: Analyzing trace with hash 882658663, now seen corresponding path program 1 times [2020-11-12 12:13:30,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:13:30,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554261879] [2020-11-12 12:13:30,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:13:30,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:13:30,395 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 12:13:30,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554261879] [2020-11-12 12:13:30,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:13:30,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:13:30,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508029008] [2020-11-12 12:13:30,398 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:13:30,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:13:30,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:13:30,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:13:30,400 INFO L87 Difference]: Start difference. First operand 4812 states and 6246 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 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 12:13:30,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:13:30,568 INFO L93 Difference]: Finished difference Result 5266 states and 6998 transitions. [2020-11-12 12:13:30,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-12 12:13:30,569 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 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 12:13:30,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:13:30,587 INFO L225 Difference]: With dead ends: 5266 [2020-11-12 12:13:30,588 INFO L226 Difference]: Without dead ends: 3554 [2020-11-12 12:13:30,589 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:13:30,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3554 states. [2020-11-12 12:13:30,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3554 to 3554. [2020-11-12 12:13:30,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3554 states, 3379 states have (on average 1.3894643385617047) internal successors, (4695), 3553 states have internal predecessors, (4695), 0 states have call successors, (0), 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 12:13:30,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3554 states to 3554 states and 4695 transitions. [2020-11-12 12:13:30,705 INFO L78 Accepts]: Start accepts. Automaton has 3554 states and 4695 transitions. Word has length 44 [2020-11-12 12:13:30,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:13:30,706 INFO L481 AbstractCegarLoop]: Abstraction has 3554 states and 4695 transitions. [2020-11-12 12:13:30,706 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 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 12:13:30,706 INFO L276 IsEmpty]: Start isEmpty. Operand 3554 states and 4695 transitions. [2020-11-12 12:13:30,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-12 12:13:30,713 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:13:30,713 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 12:13:30,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 12:13:30,714 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:13:30,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:13:30,715 INFO L82 PathProgramCache]: Analyzing trace with hash -743169722, now seen corresponding path program 1 times [2020-11-12 12:13:30,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:13:30,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679682235] [2020-11-12 12:13:30,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:13:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:13:30,903 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 12:13:30,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679682235] [2020-11-12 12:13:30,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:13:30,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:13:30,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196417575] [2020-11-12 12:13:30,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:13:30,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:13:30,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:13:30,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:13:30,907 INFO L87 Difference]: Start difference. First operand 3554 states and 4695 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 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 12:13:31,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:13:31,101 INFO L93 Difference]: Finished difference Result 5313 states and 6987 transitions. [2020-11-12 12:13:31,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:13:31,102 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 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 12:13:31,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:13:31,116 INFO L225 Difference]: With dead ends: 5313 [2020-11-12 12:13:31,116 INFO L226 Difference]: Without dead ends: 2703 [2020-11-12 12:13:31,117 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 12:13:31,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2703 states. [2020-11-12 12:13:31,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2703 to 2703. [2020-11-12 12:13:31,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2703 states, 2563 states have (on average 1.2863831447522434) internal successors, (3297), 2702 states have internal predecessors, (3297), 0 states have call successors, (0), 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 12:13:31,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2703 states to 2703 states and 3297 transitions. [2020-11-12 12:13:31,187 INFO L78 Accepts]: Start accepts. Automaton has 2703 states and 3297 transitions. Word has length 46 [2020-11-12 12:13:31,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:13:31,187 INFO L481 AbstractCegarLoop]: Abstraction has 2703 states and 3297 transitions. [2020-11-12 12:13:31,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 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 12:13:31,188 INFO L276 IsEmpty]: Start isEmpty. Operand 2703 states and 3297 transitions. [2020-11-12 12:13:31,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-12 12:13:31,193 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:13:31,193 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 12:13:31,193 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 12:13:31,193 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:13:31,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:13:31,194 INFO L82 PathProgramCache]: Analyzing trace with hash -176270830, now seen corresponding path program 1 times [2020-11-12 12:13:31,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:13:31,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082620003] [2020-11-12 12:13:31,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:13:31,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:13:31,337 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 12:13:31,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082620003] [2020-11-12 12:13:31,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:13:31,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:13:31,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158363365] [2020-11-12 12:13:31,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:13:31,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:13:31,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:13:31,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:13:31,341 INFO L87 Difference]: Start difference. First operand 2703 states and 3297 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 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 12:13:31,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:13:31,516 INFO L93 Difference]: Finished difference Result 2839 states and 3321 transitions. [2020-11-12 12:13:31,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-12 12:13:31,517 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 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 12:13:31,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:13:31,530 INFO L225 Difference]: With dead ends: 2839 [2020-11-12 12:13:31,530 INFO L226 Difference]: Without dead ends: 2168 [2020-11-12 12:13:31,530 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 12:13:31,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2168 states. [2020-11-12 12:13:31,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2168 to 2168. [2020-11-12 12:13:31,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2168 states, 2056 states have (on average 1.2368677042801557) internal successors, (2543), 2167 states have internal predecessors, (2543), 0 states have call successors, (0), 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 12:13:31,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2168 states to 2168 states and 2543 transitions. [2020-11-12 12:13:31,614 INFO L78 Accepts]: Start accepts. Automaton has 2168 states and 2543 transitions. Word has length 47 [2020-11-12 12:13:31,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:13:31,615 INFO L481 AbstractCegarLoop]: Abstraction has 2168 states and 2543 transitions. [2020-11-12 12:13:31,616 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 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 12:13:31,616 INFO L276 IsEmpty]: Start isEmpty. Operand 2168 states and 2543 transitions. [2020-11-12 12:13:31,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-12 12:13:31,620 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:13:31,620 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] [2020-11-12 12:13:31,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 12:13:31,620 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:13:31,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:13:31,622 INFO L82 PathProgramCache]: Analyzing trace with hash 162268976, now seen corresponding path program 1 times [2020-11-12 12:13:31,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:13:31,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513993997] [2020-11-12 12:13:31,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:13:31,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:13:31,805 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 12:13:31,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513993997] [2020-11-12 12:13:31,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:13:31,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:13:31,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670465966] [2020-11-12 12:13:31,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:13:31,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:13:31,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:13:31,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:13:31,810 INFO L87 Difference]: Start difference. First operand 2168 states and 2543 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 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) [2020-11-12 12:13:31,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:13:31,968 INFO L93 Difference]: Finished difference Result 2883 states and 3423 transitions. [2020-11-12 12:13:31,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:13:31,968 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 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 [2020-11-12 12:13:31,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:13:31,974 INFO L225 Difference]: With dead ends: 2883 [2020-11-12 12:13:31,975 INFO L226 Difference]: Without dead ends: 1217 [2020-11-12 12:13:31,975 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 12:13:31,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2020-11-12 12:13:32,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 1217. [2020-11-12 12:13:32,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1217 states, 1153 states have (on average 1.2012142237640937) internal successors, (1385), 1216 states have internal predecessors, (1385), 0 states have call successors, (0), 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 12:13:32,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 1385 transitions. [2020-11-12 12:13:32,007 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 1385 transitions. Word has length 48 [2020-11-12 12:13:32,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:13:32,010 INFO L481 AbstractCegarLoop]: Abstraction has 1217 states and 1385 transitions. [2020-11-12 12:13:32,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 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) [2020-11-12 12:13:32,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 1385 transitions. [2020-11-12 12:13:32,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-12 12:13:32,017 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:13:32,017 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] [2020-11-12 12:13:32,018 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 12:13:32,018 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:13:32,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:13:32,018 INFO L82 PathProgramCache]: Analyzing trace with hash -706737579, now seen corresponding path program 1 times [2020-11-12 12:13:32,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:13:32,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495452162] [2020-11-12 12:13:32,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:13:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:13:32,186 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 12:13:32,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495452162] [2020-11-12 12:13:32,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:13:32,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:13:32,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120083865] [2020-11-12 12:13:32,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:13:32,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:13:32,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:13:32,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:13:32,192 INFO L87 Difference]: Start difference. First operand 1217 states and 1385 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 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 12:13:32,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:13:32,292 INFO L93 Difference]: Finished difference Result 961 states and 1129 transitions. [2020-11-12 12:13:32,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 12:13:32,292 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2020-11-12 12:13:32,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:13:32,293 INFO L225 Difference]: With dead ends: 961 [2020-11-12 12:13:32,293 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 12:13:32,293 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:13:32,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 12:13:32,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 12:13:32,294 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 12:13:32,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 12:13:32,294 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2020-11-12 12:13:32,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:13:32,295 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 12:13:32,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 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 12:13:32,295 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 12:13:32,295 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 12:13:32,295 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 12:13:32,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:13:32 BasicIcfg [2020-11-12 12:13:32,300 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 12:13:32,303 INFO L168 Benchmark]: Toolchain (without parser) took 7690.95 ms. Allocated memory was 306.2 MB in the beginning and 1.3 GB in the end (delta: 958.4 MB). Free memory was 279.6 MB in the beginning and 1.0 GB in the end (delta: -768.7 MB). Peak memory consumption was 192.3 MB. Max. memory is 16.0 GB. [2020-11-12 12:13:32,304 INFO L168 Benchmark]: CDTParser took 0.70 ms. Allocated memory is still 306.2 MB. Free memory was 291.1 MB in the beginning and 291.1 MB in the end (delta: 65.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:13:32,305 INFO L168 Benchmark]: CACSL2BoogieTranslator took 739.04 ms. Allocated memory is still 306.2 MB. Free memory was 279.0 MB in the beginning and 276.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 26.9 MB. Max. memory is 16.0 GB. [2020-11-12 12:13:32,306 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.53 ms. Allocated memory is still 306.2 MB. Free memory was 276.8 MB in the beginning and 275.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:13:32,306 INFO L168 Benchmark]: Boogie Preprocessor took 29.60 ms. Allocated memory is still 306.2 MB. Free memory was 275.3 MB in the beginning and 273.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:13:32,307 INFO L168 Benchmark]: RCFGBuilder took 704.54 ms. Allocated memory is still 306.2 MB. Free memory was 273.6 MB in the beginning and 251.1 MB in the end (delta: 22.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:13:32,308 INFO L168 Benchmark]: TraceAbstraction took 6148.04 ms. Allocated memory was 306.2 MB in the beginning and 1.3 GB in the end (delta: 958.4 MB). Free memory was 250.5 MB in the beginning and 1.0 GB in the end (delta: -797.8 MB). Peak memory consumption was 161.2 MB. Max. memory is 16.0 GB. [2020-11-12 12:13:32,312 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70 ms. Allocated memory is still 306.2 MB. Free memory was 291.1 MB in the beginning and 291.1 MB in the end (delta: 65.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 739.04 ms. Allocated memory is still 306.2 MB. Free memory was 279.0 MB in the beginning and 276.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 26.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 54.53 ms. Allocated memory is still 306.2 MB. Free memory was 276.8 MB in the beginning and 275.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.60 ms. Allocated memory is still 306.2 MB. Free memory was 275.3 MB in the beginning and 273.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 704.54 ms. Allocated memory is still 306.2 MB. Free memory was 273.6 MB in the beginning and 251.1 MB in the end (delta: 22.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6148.04 ms. Allocated memory was 306.2 MB in the beginning and 1.3 GB in the end (delta: 958.4 MB). Free memory was 250.5 MB in the beginning and 1.0 GB in the end (delta: -797.8 MB). Peak memory consumption was 161.2 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, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 416 SDtfs, 512 SDslu, 1518 SDs, 0 SdLazy, 152 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34634occurred 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: 0.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 278 NumberOfCodeBlocks, 278 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 272 ConstructedInterpolants, 0 QuantifiedInterpolants, 34076 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...