/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-11 18:03:44,851 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-11 18:03:44,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-11 18:03:44,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-11 18:03:44,887 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-11 18:03:44,889 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-11 18:03:44,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-11 18:03:44,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-11 18:03:44,895 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-11 18:03:44,896 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-11 18:03:44,897 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-11 18:03:44,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-11 18:03:44,899 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-11 18:03:44,900 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-11 18:03:44,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-11 18:03:44,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-11 18:03:44,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-11 18:03:44,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-11 18:03:44,907 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-11 18:03:44,909 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-11 18:03:44,910 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-11 18:03:44,912 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-11 18:03:44,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-11 18:03:44,914 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-11 18:03:44,917 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-11 18:03:44,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-11 18:03:44,918 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-11 18:03:44,919 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-11 18:03:44,920 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-11 18:03:44,921 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-11 18:03:44,921 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-11 18:03:44,922 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-11 18:03:44,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-11 18:03:44,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-11 18:03:44,925 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-11 18:03:44,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-11 18:03:44,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-11 18:03:44,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-11 18:03:44,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-11 18:03:44,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-11 18:03:44,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-11 18:03:44,930 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2020-11-11 18:03:44,959 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-11 18:03:44,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-11 18:03:44,961 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-11 18:03:44,961 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-11 18:03:44,961 INFO L138 SettingsManager]: * Use SBE=true [2020-11-11 18:03:44,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-11 18:03:44,962 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-11 18:03:44,962 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-11 18:03:44,962 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-11 18:03:44,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-11 18:03:44,963 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-11 18:03:44,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-11 18:03:44,963 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-11 18:03:44,963 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-11 18:03:44,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-11 18:03:44,964 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-11 18:03:44,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-11 18:03:44,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-11 18:03:44,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-11 18:03:44,965 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-11 18:03:44,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-11 18:03:44,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 18:03:44,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-11 18:03:44,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-11 18:03:44,966 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-11 18:03:44,966 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-11 18:03:44,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-11 18:03:44,967 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-11 18:03:44,967 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-11 18:03:44,967 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-11 18:03:45,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-11 18:03:45,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-11 18:03:45,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-11 18:03:45,408 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-11 18:03:45,408 INFO L275 PluginConnector]: CDTParser initialized [2020-11-11 18:03:45,409 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i [2020-11-11 18:03:45,498 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7cb39807/aee237f010f946309495bf82e28a1421/FLAGb7115aaa6 [2020-11-11 18:03:46,228 INFO L306 CDTParser]: Found 1 translation units. [2020-11-11 18:03:46,229 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i [2020-11-11 18:03:46,244 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7cb39807/aee237f010f946309495bf82e28a1421/FLAGb7115aaa6 [2020-11-11 18:03:46,533 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7cb39807/aee237f010f946309495bf82e28a1421 [2020-11-11 18:03:46,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-11 18:03:46,545 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-11 18:03:46,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-11 18:03:46,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-11 18:03:46,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-11 18:03:46,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:03:46" (1/1) ... [2020-11-11 18:03:46,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b5b814e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:03:46, skipping insertion in model container [2020-11-11 18:03:46,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:03:46" (1/1) ... [2020-11-11 18:03:46,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-11 18:03:46,611 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-11 18:03:46,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:03:46,938 INFO L203 MainTranslator]: Completed pre-run [2020-11-11 18:03:46,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:03:47,114 INFO L208 MainTranslator]: Completed translation [2020-11-11 18:03:47,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:03:47 WrapperNode [2020-11-11 18:03:47,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-11 18:03:47,121 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-11 18:03:47,121 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-11 18:03:47,121 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-11 18:03:47,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:03:47" (1/1) ... [2020-11-11 18:03:47,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:03:47" (1/1) ... [2020-11-11 18:03:47,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-11 18:03:47,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-11 18:03:47,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-11 18:03:47,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-11 18:03:47,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:03:47" (1/1) ... [2020-11-11 18:03:47,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:03:47" (1/1) ... [2020-11-11 18:03:47,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:03:47" (1/1) ... [2020-11-11 18:03:47,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:03:47" (1/1) ... [2020-11-11 18:03:47,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:03:47" (1/1) ... [2020-11-11 18:03:47,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:03:47" (1/1) ... [2020-11-11 18:03:47,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:03:47" (1/1) ... [2020-11-11 18:03:47,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-11 18:03:47,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-11 18:03:47,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-11 18:03:47,226 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-11 18:03:47,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:03:47" (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 [2020-11-11 18:03:47,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-11 18:03:47,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-11 18:03:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-11 18:03:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-11 18:03:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-11 18:03:47,304 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-11 18:03:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-11 18:03:47,305 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-11 18:03:47,306 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-11 18:03:47,306 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-11 18:03:47,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-11 18:03:47,307 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-11 18:03:47,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-11 18:03:47,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-11 18:03:47,309 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-11 18:03:47,681 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-11 18:03:47,682 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-11 18:03:47,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:03:47 BoogieIcfgContainer [2020-11-11 18:03:47,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-11 18:03:47,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-11 18:03:47,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-11 18:03:47,690 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-11 18:03:47,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 06:03:46" (1/3) ... [2020-11-11 18:03:47,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e79204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:03:47, skipping insertion in model container [2020-11-11 18:03:47,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:03:47" (2/3) ... [2020-11-11 18:03:47,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e79204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:03:47, skipping insertion in model container [2020-11-11 18:03:47,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:03:47" (3/3) ... [2020-11-11 18:03:47,693 INFO L111 eAbstractionObserver]: Analyzing ICFG safe002_tso.opt.i [2020-11-11 18:03:47,709 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-11 18:03:47,710 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-11 18:03:47,714 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-11 18:03:47,715 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-11 18:03:47,747 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,748 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,748 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,748 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,749 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,749 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,749 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,749 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,750 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,750 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,750 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,750 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,751 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,751 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,751 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,752 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,752 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,752 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,752 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,752 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,753 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,753 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,753 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,754 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,754 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,754 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,754 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,755 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,755 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,755 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,755 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,756 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,756 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,756 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,757 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,757 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,759 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,760 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,760 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,760 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,768 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,768 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,768 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,769 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,771 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,771 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,772 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,772 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:47,774 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-11 18:03:47,788 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-11 18:03:47,814 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-11 18:03:47,814 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-11 18:03:47,814 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-11 18:03:47,814 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-11 18:03:47,815 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-11 18:03:47,815 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-11 18:03:47,815 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-11 18:03:47,815 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-11 18:03:47,827 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2020-11-11 18:03:48,780 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) [2020-11-11 18:03:48,834 INFO L276 IsEmpty]: Start isEmpty. Operand 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) [2020-11-11 18:03:48,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-11 18:03:48,896 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:03:48,897 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] [2020-11-11 18:03:48,897 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:03:48,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:03:48,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1557079206, now seen corresponding path program 1 times [2020-11-11 18:03:48,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:03:48,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118134218] [2020-11-11 18:03:48,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:03:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:03:49,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:03:49,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118134218] [2020-11-11 18:03:49,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:03:49,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:03:49,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494836622] [2020-11-11 18:03:49,425 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:03:49,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:03:49,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:03:49,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:03:49,468 INFO L87 Difference]: Start difference. First operand 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) 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) [2020-11-11 18:03:49,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:03:49,839 INFO L93 Difference]: Finished difference Result 12200 states and 42464 transitions. [2020-11-11 18:03:49,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:03:49,842 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 [2020-11-11 18:03:49,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:03:49,903 INFO L225 Difference]: With dead ends: 12200 [2020-11-11 18:03:49,903 INFO L226 Difference]: Without dead ends: 4605 [2020-11-11 18:03:49,905 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 [2020-11-11 18:03:49,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4605 states. [2020-11-11 18:03:50,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4605 to 4605. [2020-11-11 18:03:50,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4605 states, 4604 states have (on average 3.415291051259774) internal successors, (15724), 4604 states have internal predecessors, (15724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:50,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4605 states to 4605 states and 15724 transitions. [2020-11-11 18:03:50,324 INFO L78 Accepts]: Start accepts. Automaton has 4605 states and 15724 transitions. Word has length 42 [2020-11-11 18:03:50,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:03:50,325 INFO L481 AbstractCegarLoop]: Abstraction has 4605 states and 15724 transitions. [2020-11-11 18:03:50,325 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) [2020-11-11 18:03:50,325 INFO L276 IsEmpty]: Start isEmpty. Operand 4605 states and 15724 transitions. [2020-11-11 18:03:50,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-11 18:03:50,336 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:03:50,336 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] [2020-11-11 18:03:50,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-11 18:03:50,337 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:03:50,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:03:50,338 INFO L82 PathProgramCache]: Analyzing trace with hash -807040891, now seen corresponding path program 1 times [2020-11-11 18:03:50,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:03:50,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796137841] [2020-11-11 18:03:50,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:03:50,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:03:50,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:03:50,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796137841] [2020-11-11 18:03:50,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:03:50,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:03:50,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799095302] [2020-11-11 18:03:50,653 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:03:50,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:03:50,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:03:50,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:03:50,656 INFO L87 Difference]: Start difference. First operand 4605 states and 15724 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) [2020-11-11 18:03:51,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:03:51,002 INFO L93 Difference]: Finished difference Result 5725 states and 19295 transitions. [2020-11-11 18:03:51,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-11 18:03:51,002 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 [2020-11-11 18:03:51,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:03:51,027 INFO L225 Difference]: With dead ends: 5725 [2020-11-11 18:03:51,027 INFO L226 Difference]: Without dead ends: 3030 [2020-11-11 18:03:51,028 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-11 18:03:51,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2020-11-11 18:03:51,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 3030. [2020-11-11 18:03:51,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 3029 states have (on average 3.2756685374711125) internal successors, (9922), 3029 states have internal predecessors, (9922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:51,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 9922 transitions. [2020-11-11 18:03:51,145 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 9922 transitions. Word has length 44 [2020-11-11 18:03:51,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:03:51,146 INFO L481 AbstractCegarLoop]: Abstraction has 3030 states and 9922 transitions. [2020-11-11 18:03:51,146 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) [2020-11-11 18:03:51,147 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 9922 transitions. [2020-11-11 18:03:51,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-11 18:03:51,155 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:03:51,155 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] [2020-11-11 18:03:51,156 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-11 18:03:51,156 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:03:51,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:03:51,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1134193934, now seen corresponding path program 1 times [2020-11-11 18:03:51,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:03:51,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552834833] [2020-11-11 18:03:51,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:03:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:03:51,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:03:51,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552834833] [2020-11-11 18:03:51,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:03:51,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:03:51,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533197369] [2020-11-11 18:03:51,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:03:51,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:03:51,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:03:51,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:03:51,276 INFO L87 Difference]: Start difference. First operand 3030 states and 9922 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) [2020-11-11 18:03:51,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:03:51,475 INFO L93 Difference]: Finished difference Result 3366 states and 10910 transitions. [2020-11-11 18:03:51,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:03:51,476 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 [2020-11-11 18:03:51,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:03:51,501 INFO L225 Difference]: With dead ends: 3366 [2020-11-11 18:03:51,501 INFO L226 Difference]: Without dead ends: 2806 [2020-11-11 18:03:51,501 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 [2020-11-11 18:03:51,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2806 states. [2020-11-11 18:03:51,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2806 to 2806. [2020-11-11 18:03:51,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2806 states, 2805 states have (on average 3.2491978609625667) internal successors, (9114), 2805 states have internal predecessors, (9114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:51,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2806 states to 2806 states and 9114 transitions. [2020-11-11 18:03:51,623 INFO L78 Accepts]: Start accepts. Automaton has 2806 states and 9114 transitions. Word has length 47 [2020-11-11 18:03:51,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:03:51,624 INFO L481 AbstractCegarLoop]: Abstraction has 2806 states and 9114 transitions. [2020-11-11 18:03:51,624 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) [2020-11-11 18:03:51,624 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states and 9114 transitions. [2020-11-11 18:03:51,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-11 18:03:51,634 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:03:51,634 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] [2020-11-11 18:03:51,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-11 18:03:51,634 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:03:51,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:03:51,635 INFO L82 PathProgramCache]: Analyzing trace with hash -1202989078, now seen corresponding path program 1 times [2020-11-11 18:03:51,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:03:51,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104098460] [2020-11-11 18:03:51,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:03:51,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:03:51,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:03:51,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104098460] [2020-11-11 18:03:51,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:03:51,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:03:51,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886191129] [2020-11-11 18:03:51,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:03:51,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:03:51,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:03:51,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:03:51,751 INFO L87 Difference]: Start difference. First operand 2806 states and 9114 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 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) [2020-11-11 18:03:51,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:03:51,893 INFO L93 Difference]: Finished difference Result 2998 states and 9642 transitions. [2020-11-11 18:03:51,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:03:51,893 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 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 [2020-11-11 18:03:51,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:03:51,915 INFO L225 Difference]: With dead ends: 2998 [2020-11-11 18:03:51,915 INFO L226 Difference]: Without dead ends: 2550 [2020-11-11 18:03:51,916 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 [2020-11-11 18:03:51,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2550 states. [2020-11-11 18:03:52,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2550 to 2550. [2020-11-11 18:03:52,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2550 states, 2549 states have (on average 3.224009415457042) internal successors, (8218), 2549 states have internal predecessors, (8218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:52,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2550 states to 2550 states and 8218 transitions. [2020-11-11 18:03:52,065 INFO L78 Accepts]: Start accepts. Automaton has 2550 states and 8218 transitions. Word has length 48 [2020-11-11 18:03:52,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:03:52,065 INFO L481 AbstractCegarLoop]: Abstraction has 2550 states and 8218 transitions. [2020-11-11 18:03:52,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 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) [2020-11-11 18:03:52,066 INFO L276 IsEmpty]: Start isEmpty. Operand 2550 states and 8218 transitions. [2020-11-11 18:03:52,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-11 18:03:52,073 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:03:52,074 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] [2020-11-11 18:03:52,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-11 18:03:52,074 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:03:52,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:03:52,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1695398517, now seen corresponding path program 1 times [2020-11-11 18:03:52,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:03:52,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266808681] [2020-11-11 18:03:52,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:03:52,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:03:52,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:03:52,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266808681] [2020-11-11 18:03:52,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:03:52,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:03:52,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253769489] [2020-11-11 18:03:52,202 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:03:52,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:03:52,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:03:52,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:03:52,203 INFO L87 Difference]: Start difference. First operand 2550 states and 8218 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:52,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:03:52,315 INFO L93 Difference]: Finished difference Result 3930 states and 12677 transitions. [2020-11-11 18:03:52,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-11 18:03:52,315 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2020-11-11 18:03:52,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:03:52,333 INFO L225 Difference]: With dead ends: 3930 [2020-11-11 18:03:52,334 INFO L226 Difference]: Without dead ends: 2260 [2020-11-11 18:03:52,334 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 [2020-11-11 18:03:52,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2260 states. [2020-11-11 18:03:52,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2260 to 2260. [2020-11-11 18:03:52,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2260 states, 2259 states have (on average 3.2284196547144752) internal successors, (7293), 2259 states have internal predecessors, (7293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:52,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2260 states to 2260 states and 7293 transitions. [2020-11-11 18:03:52,410 INFO L78 Accepts]: Start accepts. Automaton has 2260 states and 7293 transitions. Word has length 50 [2020-11-11 18:03:52,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:03:52,411 INFO L481 AbstractCegarLoop]: Abstraction has 2260 states and 7293 transitions. [2020-11-11 18:03:52,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:52,411 INFO L276 IsEmpty]: Start isEmpty. Operand 2260 states and 7293 transitions. [2020-11-11 18:03:52,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-11 18:03:52,418 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:03:52,418 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] [2020-11-11 18:03:52,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-11 18:03:52,418 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:03:52,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:03:52,419 INFO L82 PathProgramCache]: Analyzing trace with hash 366921643, now seen corresponding path program 2 times [2020-11-11 18:03:52,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:03:52,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886690729] [2020-11-11 18:03:52,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:03:52,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:03:52,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:03:52,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886690729] [2020-11-11 18:03:52,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:03:52,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:03:52,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429365412] [2020-11-11 18:03:52,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:03:52,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:03:52,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:03:52,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:03:52,525 INFO L87 Difference]: Start difference. First operand 2260 states and 7293 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:52,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:03:52,655 INFO L93 Difference]: Finished difference Result 3140 states and 10117 transitions. [2020-11-11 18:03:52,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-11 18:03:52,656 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2020-11-11 18:03:52,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:03:52,663 INFO L225 Difference]: With dead ends: 3140 [2020-11-11 18:03:52,664 INFO L226 Difference]: Without dead ends: 1760 [2020-11-11 18:03:52,664 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:03:52,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1760 states. [2020-11-11 18:03:52,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1760 to 1760. [2020-11-11 18:03:52,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1760 states, 1759 states have (on average 3.159749857873792) internal successors, (5558), 1759 states have internal predecessors, (5558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:52,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1760 states to 1760 states and 5558 transitions. [2020-11-11 18:03:52,729 INFO L78 Accepts]: Start accepts. Automaton has 1760 states and 5558 transitions. Word has length 50 [2020-11-11 18:03:52,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:03:52,729 INFO L481 AbstractCegarLoop]: Abstraction has 1760 states and 5558 transitions. [2020-11-11 18:03:52,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:52,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states and 5558 transitions. [2020-11-11 18:03:52,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-11 18:03:52,734 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:03:52,734 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] [2020-11-11 18:03:52,735 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-11 18:03:52,735 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:03:52,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:03:52,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1518373285, now seen corresponding path program 3 times [2020-11-11 18:03:52,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:03:52,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031693426] [2020-11-11 18:03:52,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:03:52,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:03:52,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:03:52,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031693426] [2020-11-11 18:03:52,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:03:52,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:03:52,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218708955] [2020-11-11 18:03:52,890 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:03:52,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:03:52,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:03:52,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:03:52,896 INFO L87 Difference]: Start difference. First operand 1760 states and 5558 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:53,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:03:53,041 INFO L93 Difference]: Finished difference Result 2226 states and 6963 transitions. [2020-11-11 18:03:53,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:03:53,041 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2020-11-11 18:03:53,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:03:53,048 INFO L225 Difference]: With dead ends: 2226 [2020-11-11 18:03:53,048 INFO L226 Difference]: Without dead ends: 1634 [2020-11-11 18:03:53,049 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 [2020-11-11 18:03:53,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2020-11-11 18:03:53,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1634. [2020-11-11 18:03:53,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1633 states have (on average 3.140845070422535) internal successors, (5129), 1633 states have internal predecessors, (5129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:53,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 5129 transitions. [2020-11-11 18:03:53,101 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 5129 transitions. Word has length 50 [2020-11-11 18:03:53,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:03:53,101 INFO L481 AbstractCegarLoop]: Abstraction has 1634 states and 5129 transitions. [2020-11-11 18:03:53,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:53,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 5129 transitions. [2020-11-11 18:03:53,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-11 18:03:53,106 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:03:53,106 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] [2020-11-11 18:03:53,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-11 18:03:53,107 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:03:53,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:03:53,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1388621878, now seen corresponding path program 1 times [2020-11-11 18:03:53,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:03:53,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935035014] [2020-11-11 18:03:53,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:03:53,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:03:53,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:03:53,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935035014] [2020-11-11 18:03:53,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:03:53,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:03:53,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690156972] [2020-11-11 18:03:53,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:03:53,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:03:53,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:03:53,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:03:53,279 INFO L87 Difference]: Start difference. First operand 1634 states and 5129 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) [2020-11-11 18:03:53,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:03:53,429 INFO L93 Difference]: Finished difference Result 1793 states and 5496 transitions. [2020-11-11 18:03:53,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-11 18:03:53,429 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 [2020-11-11 18:03:53,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:03:53,434 INFO L225 Difference]: With dead ends: 1793 [2020-11-11 18:03:53,435 INFO L226 Difference]: Without dead ends: 1289 [2020-11-11 18:03:53,435 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-11 18:03:53,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2020-11-11 18:03:53,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1289. [2020-11-11 18:03:53,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1289 states, 1288 states have (on average 3.034937888198758) internal successors, (3909), 1288 states have internal predecessors, (3909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:53,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 3909 transitions. [2020-11-11 18:03:53,482 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 3909 transitions. Word has length 51 [2020-11-11 18:03:53,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:03:53,482 INFO L481 AbstractCegarLoop]: Abstraction has 1289 states and 3909 transitions. [2020-11-11 18:03:53,483 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) [2020-11-11 18:03:53,483 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 3909 transitions. [2020-11-11 18:03:53,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-11 18:03:53,487 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:03:53,487 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] [2020-11-11 18:03:53,487 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-11 18:03:53,488 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:03:53,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:03:53,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1603073441, now seen corresponding path program 1 times [2020-11-11 18:03:53,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:03:53,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33092828] [2020-11-11 18:03:53,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:03:53,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:03:53,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:03:53,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33092828] [2020-11-11 18:03:53,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:03:53,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-11 18:03:53,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955960258] [2020-11-11 18:03:53,601 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-11 18:03:53,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:03:53,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-11 18:03:53,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-11 18:03:53,612 INFO L87 Difference]: Start difference. First operand 1289 states and 3909 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:53,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:03:53,781 INFO L93 Difference]: Finished difference Result 1055 states and 3066 transitions. [2020-11-11 18:03:53,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-11 18:03:53,782 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2020-11-11 18:03:53,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:03:53,784 INFO L225 Difference]: With dead ends: 1055 [2020-11-11 18:03:53,784 INFO L226 Difference]: Without dead ends: 731 [2020-11-11 18:03:53,785 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 [2020-11-11 18:03:53,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2020-11-11 18:03:53,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 731. [2020-11-11 18:03:53,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 730 states have (on average 2.8068493150684932) internal successors, (2049), 730 states have internal predecessors, (2049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:53,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 2049 transitions. [2020-11-11 18:03:53,805 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 2049 transitions. Word has length 52 [2020-11-11 18:03:53,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:03:53,806 INFO L481 AbstractCegarLoop]: Abstraction has 731 states and 2049 transitions. [2020-11-11 18:03:53,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:53,806 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 2049 transitions. [2020-11-11 18:03:53,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-11 18:03:53,808 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:03:53,808 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:03:53,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-11 18:03:53,809 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:03:53,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:03:53,809 INFO L82 PathProgramCache]: Analyzing trace with hash -986251264, now seen corresponding path program 1 times [2020-11-11 18:03:53,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:03:53,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67681301] [2020-11-11 18:03:53,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:03:53,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:03:53,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:03:53,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67681301] [2020-11-11 18:03:53,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:03:53,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:03:53,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312174736] [2020-11-11 18:03:53,891 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:03:53,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:03:53,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:03:53,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:03:53,892 INFO L87 Difference]: Start difference. First operand 731 states and 2049 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:53,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:03:53,962 INFO L93 Difference]: Finished difference Result 623 states and 1725 transitions. [2020-11-11 18:03:53,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-11 18:03:53,962 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2020-11-11 18:03:53,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:03:53,963 INFO L225 Difference]: With dead ends: 623 [2020-11-11 18:03:53,963 INFO L226 Difference]: Without dead ends: 0 [2020-11-11 18:03:53,963 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:03:53,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-11 18:03:53,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-11 18:03:53,964 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) [2020-11-11 18:03:53,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-11 18:03:53,964 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2020-11-11 18:03:53,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:03:53,964 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-11 18:03:53,965 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:53,965 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-11 18:03:53,965 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-11 18:03:53,965 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-11 18:03:53,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 06:03:53 BasicIcfg [2020-11-11 18:03:53,970 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-11 18:03:53,972 INFO L168 Benchmark]: Toolchain (without parser) took 7430.97 ms. Allocated memory was 302.0 MB in the beginning and 755.0 MB in the end (delta: 453.0 MB). Free memory was 276.2 MB in the beginning and 618.6 MB in the end (delta: -342.4 MB). Peak memory consumption was 111.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:03:53,973 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 302.0 MB. Free memory was 272.5 MB in the beginning and 272.5 MB in the end (delta: 65.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 18:03:53,973 INFO L168 Benchmark]: CACSL2BoogieTranslator took 568.06 ms. Allocated memory is still 302.0 MB. Free memory was 275.6 MB in the beginning and 283.6 MB in the end (delta: -8.0 MB). Peak memory consumption was 37.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:03:53,974 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.23 ms. Allocated memory is still 302.0 MB. Free memory was 283.6 MB in the beginning and 281.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:03:53,975 INFO L168 Benchmark]: Boogie Preprocessor took 26.44 ms. Allocated memory is still 302.0 MB. Free memory was 281.5 MB in the beginning and 280.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:03:53,976 INFO L168 Benchmark]: RCFGBuilder took 458.17 ms. Allocated memory is still 302.0 MB. Free memory was 280.5 MB in the beginning and 257.4 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:03:53,977 INFO L168 Benchmark]: TraceAbstraction took 6283.56 ms. Allocated memory was 302.0 MB in the beginning and 755.0 MB in the end (delta: 453.0 MB). Free memory was 256.3 MB in the beginning and 618.6 MB in the end (delta: -362.2 MB). Peak memory consumption was 92.9 MB. Max. memory is 16.0 GB. [2020-11-11 18:03:53,980 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 302.0 MB. Free memory was 272.5 MB in the beginning and 272.5 MB in the end (delta: 65.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 568.06 ms. Allocated memory is still 302.0 MB. Free memory was 275.6 MB in the beginning and 283.6 MB in the end (delta: -8.0 MB). Peak memory consumption was 37.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 77.23 ms. Allocated memory is still 302.0 MB. Free memory was 283.6 MB in the beginning and 281.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 26.44 ms. Allocated memory is still 302.0 MB. Free memory was 281.5 MB in the beginning and 280.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 458.17 ms. Allocated memory is still 302.0 MB. Free memory was 280.5 MB in the beginning and 257.4 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6283.56 ms. Allocated memory was 302.0 MB in the beginning and 755.0 MB in the end (delta: 453.0 MB). Free memory was 256.3 MB in the beginning and 618.6 MB in the end (delta: -362.2 MB). Peak memory consumption was 92.9 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: 6.1s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.9s, HoareTripleCheckerStatistics: 941 SDtfs, 1185 SDslu, 3087 SDs, 0 SdLazy, 368 SolverSat, 57 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9848occurred 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: 1.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 488 NumberOfCodeBlocks, 488 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 478 ConstructedInterpolants, 0 QuantifiedInterpolants, 60478 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...