/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 06:22:07,522 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 06:22:07,525 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 06:22:07,580 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 06:22:07,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 06:22:07,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 06:22:07,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 06:22:07,587 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 06:22:07,589 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 06:22:07,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 06:22:07,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 06:22:07,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 06:22:07,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 06:22:07,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 06:22:07,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 06:22:07,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 06:22:07,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 06:22:07,600 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 06:22:07,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 06:22:07,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 06:22:07,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 06:22:07,609 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 06:22:07,611 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 06:22:07,612 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 06:22:07,615 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-12 06:22:07,616 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-12 06:22:07,616 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-12 06:22:07,618 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-12 06:22:07,618 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-12 06:22:07,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-12 06:22:07,620 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 06:22:07,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 06:22:07,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 06:22:07,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 06:22:07,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 06:22:07,625 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 06:22:07,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 06:22:07,626 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 06:22:07,627 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 06:22:07,628 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 06:22:07,629 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 06:22:07,631 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2020-11-12 06:22:07,682 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 06:22:07,684 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 06:22:07,689 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 06:22:07,689 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 06:22:07,689 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 06:22:07,690 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 06:22:07,690 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 06:22:07,690 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 06:22:07,691 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 06:22:07,691 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 06:22:07,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 06:22:07,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 06:22:07,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 06:22:07,693 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 06:22:07,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 06:22:07,693 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 06:22:07,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 06:22:07,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 06:22:07,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 06:22:07,695 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 06:22:07,695 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 06:22:07,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 06:22:07,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 06:22:07,696 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 06:22:07,696 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 06:22:07,696 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 06:22:07,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 06:22:07,697 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 06:22:07,697 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 06:22:07,697 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 06:22:07,697 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=DELAY_SET WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 06:22:08,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 06:22:08,178 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 06:22:08,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 06:22:08,183 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 06:22:08,184 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 06:22:08,185 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc.i [2020-11-12 06:22:08,290 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebdb003ab/18bffb2c344b4f75a081f0b6f7684547/FLAG61889c871 [2020-11-12 06:22:09,002 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 06:22:09,003 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc.i [2020-11-12 06:22:09,019 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebdb003ab/18bffb2c344b4f75a081f0b6f7684547/FLAG61889c871 [2020-11-12 06:22:09,191 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebdb003ab/18bffb2c344b4f75a081f0b6f7684547 [2020-11-12 06:22:09,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 06:22:09,204 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 06:22:09,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 06:22:09,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 06:22:09,212 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 06:22:09,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:22:09" (1/1) ... [2020-11-12 06:22:09,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@226cfcec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:22:09, skipping insertion in model container [2020-11-12 06:22:09,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:22:09" (1/1) ... [2020-11-12 06:22:09,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 06:22:09,307 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 06:22:09,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:22:09,745 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 06:22:09,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:22:09,880 INFO L208 MainTranslator]: Completed translation [2020-11-12 06:22:09,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:22:09 WrapperNode [2020-11-12 06:22:09,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 06:22:09,882 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 06:22:09,882 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 06:22:09,882 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 06:22:09,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:22:09" (1/1) ... [2020-11-12 06:22:09,908 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:22:09" (1/1) ... [2020-11-12 06:22:09,931 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 06:22:09,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 06:22:09,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 06:22:09,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 06:22:09,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:22:09" (1/1) ... [2020-11-12 06:22:09,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:22:09" (1/1) ... [2020-11-12 06:22:09,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:22:09" (1/1) ... [2020-11-12 06:22:09,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:22:09" (1/1) ... [2020-11-12 06:22:09,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:22:09" (1/1) ... [2020-11-12 06:22:09,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:22:09" (1/1) ... [2020-11-12 06:22:09,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:22:09" (1/1) ... [2020-11-12 06:22:09,961 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 06:22:09,962 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 06:22:09,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 06:22:09,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 06:22:09,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:22:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 06:22:10,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 06:22:10,056 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 06:22:10,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 06:22:10,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 06:22:10,058 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 06:22:10,059 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 06:22:10,061 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 06:22:10,061 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 06:22:10,062 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 06:22:10,062 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 06:22:10,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 06:22:10,063 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 06:22:10,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 06:22:10,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 06:22:10,065 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 06:22:10,492 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 06:22:10,492 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 06:22:10,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:22:10 BoogieIcfgContainer [2020-11-12 06:22:10,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 06:22:10,497 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 06:22:10,497 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 06:22:10,501 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 06:22:10,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 06:22:09" (1/3) ... [2020-11-12 06:22:10,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78e45368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:22:10, skipping insertion in model container [2020-11-12 06:22:10,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:22:09" (2/3) ... [2020-11-12 06:22:10,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78e45368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:22:10, skipping insertion in model container [2020-11-12 06:22:10,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:22:10" (3/3) ... [2020-11-12 06:22:10,504 INFO L111 eAbstractionObserver]: Analyzing ICFG safe025_pso.oepc.i [2020-11-12 06:22:10,521 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 06:22:10,521 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 06:22:10,525 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 06:22:10,526 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 06:22:10,563 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,563 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,563 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,563 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,564 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,564 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,564 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,564 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,565 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,565 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,565 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,565 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,566 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,566 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,566 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,567 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,567 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,567 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,567 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,567 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,569 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,569 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,569 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,569 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,570 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,570 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,570 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,570 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,570 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,571 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,571 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,571 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,574 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,574 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,574 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,574 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,580 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,580 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,580 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,581 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,583 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,584 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,584 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,584 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:10,586 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 06:22:10,600 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-12 06:22:10,625 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 06:22:10,626 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 06:22:10,626 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 06:22:10,626 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 06:22:10,626 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 06:22:10,626 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 06:22:10,626 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 06:22:10,627 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 06:22:10,640 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2020-11-12 06:22:11,749 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:22:12,490 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 737ms [2020-11-12 06:22:12,538 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:22:12,565 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 9848 states, 9112 states have (on average 1.3888279192273925) internal successors, (12655), 9847 states have internal predecessors, (12655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:22:12,581 INFO L276 IsEmpty]: Start isEmpty. Operand has 9848 states, 9112 states have (on average 1.3888279192273925) internal successors, (12655), 9847 states have internal predecessors, (12655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:22:12,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-12 06:22:12,610 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:22:12,612 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:22:12,612 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:22:12,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:22:12,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1953454049, now seen corresponding path program 1 times [2020-11-12 06:22:12,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:22:12,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824903732] [2020-11-12 06:22:12,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:22:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:22:13,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:22:13,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824903732] [2020-11-12 06:22:13,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:22:13,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:22:13,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368443762] [2020-11-12 06:22:13,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:22:13,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:22:13,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:22:13,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:22:13,171 INFO L87 Difference]: Start difference. First operand has 9848 states, 9112 states have (on average 1.3888279192273925) internal successors, (12655), 9847 states have internal predecessors, (12655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:22:13,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:22:13,447 INFO L93 Difference]: Finished difference Result 12200 states and 14249 transitions. [2020-11-12 06:22:13,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:22:13,449 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2020-11-12 06:22:13,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:22:13,489 INFO L225 Difference]: With dead ends: 12200 [2020-11-12 06:22:13,490 INFO L226 Difference]: Without dead ends: 3716 [2020-11-12 06:22:13,492 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:22:13,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3716 states. [2020-11-12 06:22:13,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3716 to 3716. [2020-11-12 06:22:13,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3716 states, 3471 states have (on average 1.4537597234226447) internal successors, (5046), 3715 states have internal predecessors, (5046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:22:13,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3716 states to 3716 states and 5046 transitions. [2020-11-12 06:22:13,814 INFO L78 Accepts]: Start accepts. Automaton has 3716 states and 5046 transitions. Word has length 42 [2020-11-12 06:22:13,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:22:13,815 INFO L481 AbstractCegarLoop]: Abstraction has 3716 states and 5046 transitions. [2020-11-12 06:22:13,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:22:13,820 INFO L276 IsEmpty]: Start isEmpty. Operand 3716 states and 5046 transitions. [2020-11-12 06:22:13,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-12 06:22:13,829 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:22:13,829 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:22:13,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 06:22:13,837 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:22:13,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:22:13,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1409301406, now seen corresponding path program 1 times [2020-11-12 06:22:13,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:22:13,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766589948] [2020-11-12 06:22:13,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:22:13,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:22:14,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:22:14,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766589948] [2020-11-12 06:22:14,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:22:14,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:22:14,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14067571] [2020-11-12 06:22:14,076 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:22:14,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:22:14,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:22:14,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:22:14,078 INFO L87 Difference]: Start difference. First operand 3716 states and 5046 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:22:14,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:22:14,320 INFO L93 Difference]: Finished difference Result 4304 states and 5841 transitions. [2020-11-12 06:22:14,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:22:14,320 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2020-11-12 06:22:14,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:22:14,337 INFO L225 Difference]: With dead ends: 4304 [2020-11-12 06:22:14,338 INFO L226 Difference]: Without dead ends: 3057 [2020-11-12 06:22:14,339 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:22:14,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3057 states. [2020-11-12 06:22:14,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3057 to 3057. [2020-11-12 06:22:14,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3057 states, 2861 states have (on average 1.4645228940929744) internal successors, (4190), 3056 states have internal predecessors, (4190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:22:14,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3057 states to 3057 states and 4190 transitions. [2020-11-12 06:22:14,442 INFO L78 Accepts]: Start accepts. Automaton has 3057 states and 4190 transitions. Word has length 44 [2020-11-12 06:22:14,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:22:14,443 INFO L481 AbstractCegarLoop]: Abstraction has 3057 states and 4190 transitions. [2020-11-12 06:22:14,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:22:14,444 INFO L276 IsEmpty]: Start isEmpty. Operand 3057 states and 4190 transitions. [2020-11-12 06:22:14,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-12 06:22:14,452 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:22:14,452 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] [2020-11-12 06:22:14,452 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 06:22:14,453 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:22:14,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:22:14,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1167093592, now seen corresponding path program 1 times [2020-11-12 06:22:14,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:22:14,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375300730] [2020-11-12 06:22:14,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:22:14,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:22:14,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:22:14,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375300730] [2020-11-12 06:22:14,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:22:14,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:22:14,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404603185] [2020-11-12 06:22:14,640 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:22:14,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:22:14,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:22:14,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:22:14,642 INFO L87 Difference]: Start difference. First operand 3057 states and 4190 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:22:14,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:22:14,789 INFO L93 Difference]: Finished difference Result 3393 states and 4687 transitions. [2020-11-12 06:22:14,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:22:14,790 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 45 [2020-11-12 06:22:14,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:22:14,803 INFO L225 Difference]: With dead ends: 3393 [2020-11-12 06:22:14,803 INFO L226 Difference]: Without dead ends: 2329 [2020-11-12 06:22:14,804 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:22:14,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2020-11-12 06:22:14,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 2329. [2020-11-12 06:22:14,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2329 states, 2189 states have (on average 1.4746459570580173) internal successors, (3228), 2328 states have internal predecessors, (3228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:22:14,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 3228 transitions. [2020-11-12 06:22:14,887 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 3228 transitions. Word has length 45 [2020-11-12 06:22:14,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:22:14,887 INFO L481 AbstractCegarLoop]: Abstraction has 2329 states and 3228 transitions. [2020-11-12 06:22:14,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:22:14,888 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 3228 transitions. [2020-11-12 06:22:14,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-12 06:22:14,893 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:22:14,893 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:22:14,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 06:22:14,894 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:22:14,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:22:14,896 INFO L82 PathProgramCache]: Analyzing trace with hash -585596203, now seen corresponding path program 1 times [2020-11-12 06:22:14,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:22:14,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195577784] [2020-11-12 06:22:14,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:22:14,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:22:15,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:22:15,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195577784] [2020-11-12 06:22:15,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:22:15,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:22:15,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429322184] [2020-11-12 06:22:15,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:22:15,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:22:15,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:22:15,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:22:15,147 INFO L87 Difference]: Start difference. First operand 2329 states and 3228 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:22:15,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:22:15,279 INFO L93 Difference]: Finished difference Result 3742 states and 5482 transitions. [2020-11-12 06:22:15,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 06:22:15,280 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2020-11-12 06:22:15,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:22:15,293 INFO L225 Difference]: With dead ends: 3742 [2020-11-12 06:22:15,293 INFO L226 Difference]: Without dead ends: 2274 [2020-11-12 06:22:15,293 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:22:15,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2020-11-12 06:22:15,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 2274. [2020-11-12 06:22:15,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2274 states, 2134 states have (on average 1.4793814432989691) internal successors, (3157), 2273 states have internal predecessors, (3157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:22:15,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2274 states to 2274 states and 3157 transitions. [2020-11-12 06:22:15,353 INFO L78 Accepts]: Start accepts. Automaton has 2274 states and 3157 transitions. Word has length 47 [2020-11-12 06:22:15,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:22:15,354 INFO L481 AbstractCegarLoop]: Abstraction has 2274 states and 3157 transitions. [2020-11-12 06:22:15,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:22:15,355 INFO L276 IsEmpty]: Start isEmpty. Operand 2274 states and 3157 transitions. [2020-11-12 06:22:15,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-12 06:22:15,359 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:22:15,359 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:22:15,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 06:22:15,359 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:22:15,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:22:15,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1464793097, now seen corresponding path program 2 times [2020-11-12 06:22:15,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:22:15,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781234515] [2020-11-12 06:22:15,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:22:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:22:15,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:22:15,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781234515] [2020-11-12 06:22:15,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:22:15,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:22:15,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569540845] [2020-11-12 06:22:15,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:22:15,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:22:15,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:22:15,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:22:15,524 INFO L87 Difference]: Start difference. First operand 2274 states and 3157 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:22:15,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:22:15,664 INFO L93 Difference]: Finished difference Result 2730 states and 3930 transitions. [2020-11-12 06:22:15,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:22:15,665 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2020-11-12 06:22:15,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:22:15,675 INFO L225 Difference]: With dead ends: 2730 [2020-11-12 06:22:15,675 INFO L226 Difference]: Without dead ends: 2170 [2020-11-12 06:22:15,675 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:22:15,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2170 states. [2020-11-12 06:22:15,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2170 to 2170. [2020-11-12 06:22:15,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2170 states, 2038 states have (on average 1.4739941118743867) internal successors, (3004), 2169 states have internal predecessors, (3004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:22:15,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 3004 transitions. [2020-11-12 06:22:15,744 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 3004 transitions. Word has length 47 [2020-11-12 06:22:15,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:22:15,746 INFO L481 AbstractCegarLoop]: Abstraction has 2170 states and 3004 transitions. [2020-11-12 06:22:15,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:22:15,746 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 3004 transitions. [2020-11-12 06:22:15,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-12 06:22:15,754 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:22:15,754 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:22:15,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 06:22:15,755 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:22:15,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:22:15,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1064363714, now seen corresponding path program 1 times [2020-11-12 06:22:15,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:22:15,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949069494] [2020-11-12 06:22:15,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:22:15,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:22:15,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:22:15,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949069494] [2020-11-12 06:22:15,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:22:15,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:22:15,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936957022] [2020-11-12 06:22:15,951 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:22:15,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:22:15,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:22:15,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:22:15,953 INFO L87 Difference]: Start difference. First operand 2170 states and 3004 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:22:16,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:22:16,126 INFO L93 Difference]: Finished difference Result 2152 states and 3129 transitions. [2020-11-12 06:22:16,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:22:16,127 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2020-11-12 06:22:16,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:22:16,136 INFO L225 Difference]: With dead ends: 2152 [2020-11-12 06:22:16,136 INFO L226 Difference]: Without dead ends: 1611 [2020-11-12 06:22:16,137 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-12 06:22:16,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2020-11-12 06:22:16,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1611. [2020-11-12 06:22:16,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1611 states, 1521 states have (on average 1.4516765285996056) internal successors, (2208), 1610 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:22:16,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1611 states to 1611 states and 2208 transitions. [2020-11-12 06:22:16,184 INFO L78 Accepts]: Start accepts. Automaton has 1611 states and 2208 transitions. Word has length 48 [2020-11-12 06:22:16,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:22:16,185 INFO L481 AbstractCegarLoop]: Abstraction has 1611 states and 2208 transitions. [2020-11-12 06:22:16,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:22:16,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1611 states and 2208 transitions. [2020-11-12 06:22:16,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-12 06:22:16,189 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:22:16,189 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] [2020-11-12 06:22:16,189 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 06:22:16,190 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:22:16,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:22:16,190 INFO L82 PathProgramCache]: Analyzing trace with hash 600028321, now seen corresponding path program 1 times [2020-11-12 06:22:16,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:22:16,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128847396] [2020-11-12 06:22:16,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:22:16,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:22:16,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:22:16,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128847396] [2020-11-12 06:22:16,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:22:16,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-12 06:22:16,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288148231] [2020-11-12 06:22:16,353 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-12 06:22:16,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:22:16,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-12 06:22:16,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-12 06:22:16,354 INFO L87 Difference]: Start difference. First operand 1611 states and 2208 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 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) [2020-11-12 06:22:16,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:22:16,523 INFO L93 Difference]: Finished difference Result 1152 states and 1701 transitions. [2020-11-12 06:22:16,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-12 06:22:16,528 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 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 [2020-11-12 06:22:16,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:22:16,532 INFO L225 Difference]: With dead ends: 1152 [2020-11-12 06:22:16,533 INFO L226 Difference]: Without dead ends: 700 [2020-11-12 06:22:16,533 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-12 06:22:16,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2020-11-12 06:22:16,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 700. [2020-11-12 06:22:16,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 673 states have (on average 1.3997028231797919) internal successors, (942), 699 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:22:16,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 942 transitions. [2020-11-12 06:22:16,554 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 942 transitions. Word has length 50 [2020-11-12 06:22:16,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:22:16,554 INFO L481 AbstractCegarLoop]: Abstraction has 700 states and 942 transitions. [2020-11-12 06:22:16,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 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) [2020-11-12 06:22:16,554 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 942 transitions. [2020-11-12 06:22:16,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-12 06:22:16,556 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:22:16,556 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] [2020-11-12 06:22:16,557 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-12 06:22:16,557 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:22:16,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:22:16,557 INFO L82 PathProgramCache]: Analyzing trace with hash 705408351, now seen corresponding path program 1 times [2020-11-12 06:22:16,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:22:16,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469236360] [2020-11-12 06:22:16,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:22:16,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:22:16,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:22:16,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469236360] [2020-11-12 06:22:16,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:22:16,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:22:16,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455995403] [2020-11-12 06:22:16,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:22:16,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:22:16,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:22:16,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:22:16,729 INFO L87 Difference]: Start difference. First operand 700 states and 942 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) [2020-11-12 06:22:16,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:22:16,819 INFO L93 Difference]: Finished difference Result 995 states and 1410 transitions. [2020-11-12 06:22:16,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 06:22:16,820 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 [2020-11-12 06:22:16,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:22:16,823 INFO L225 Difference]: With dead ends: 995 [2020-11-12 06:22:16,823 INFO L226 Difference]: Without dead ends: 475 [2020-11-12 06:22:16,823 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:22:16,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2020-11-12 06:22:16,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 475. [2020-11-12 06:22:16,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 448 states have (on average 1.4642857142857142) internal successors, (656), 474 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:22:16,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 656 transitions. [2020-11-12 06:22:16,836 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 656 transitions. Word has length 54 [2020-11-12 06:22:16,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:22:16,836 INFO L481 AbstractCegarLoop]: Abstraction has 475 states and 656 transitions. [2020-11-12 06:22:16,836 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) [2020-11-12 06:22:16,836 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 656 transitions. [2020-11-12 06:22:16,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-12 06:22:16,838 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:22:16,838 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] [2020-11-12 06:22:16,838 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-12 06:22:16,838 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:22:16,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:22:16,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1769712545, now seen corresponding path program 2 times [2020-11-12 06:22:16,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:22:16,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956317696] [2020-11-12 06:22:16,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:22:16,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:22:16,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:22:16,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956317696] [2020-11-12 06:22:16,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:22:16,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:22:16,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479791598] [2020-11-12 06:22:16,942 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:22:16,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:22:16,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:22:16,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:22:16,943 INFO L87 Difference]: Start difference. First operand 475 states and 656 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) [2020-11-12 06:22:17,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:22:17,052 INFO L93 Difference]: Finished difference Result 761 states and 1112 transitions. [2020-11-12 06:22:17,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 06:22:17,053 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 [2020-11-12 06:22:17,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:22:17,055 INFO L225 Difference]: With dead ends: 761 [2020-11-12 06:22:17,055 INFO L226 Difference]: Without dead ends: 435 [2020-11-12 06:22:17,056 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:22:17,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2020-11-12 06:22:17,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 435. [2020-11-12 06:22:17,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 408 states have (on average 1.4901960784313726) internal successors, (608), 434 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:22:17,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 608 transitions. [2020-11-12 06:22:17,076 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 608 transitions. Word has length 54 [2020-11-12 06:22:17,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:22:17,077 INFO L481 AbstractCegarLoop]: Abstraction has 435 states and 608 transitions. [2020-11-12 06:22:17,077 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) [2020-11-12 06:22:17,077 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 608 transitions. [2020-11-12 06:22:17,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-12 06:22:17,078 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:22:17,079 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] [2020-11-12 06:22:17,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-12 06:22:17,079 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:22:17,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:22:17,079 INFO L82 PathProgramCache]: Analyzing trace with hash 719954337, now seen corresponding path program 3 times [2020-11-12 06:22:17,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:22:17,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509314619] [2020-11-12 06:22:17,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:22:17,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:22:17,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:22:17,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509314619] [2020-11-12 06:22:17,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:22:17,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:22:17,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392023946] [2020-11-12 06:22:17,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:22:17,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:22:17,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:22:17,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:22:17,177 INFO L87 Difference]: Start difference. First operand 435 states and 608 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) [2020-11-12 06:22:17,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:22:17,264 INFO L93 Difference]: Finished difference Result 327 states and 500 transitions. [2020-11-12 06:22:17,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-12 06:22:17,264 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 [2020-11-12 06:22:17,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:22:17,265 INFO L225 Difference]: With dead ends: 327 [2020-11-12 06:22:17,265 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 06:22:17,265 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:22:17,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 06:22:17,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 06:22:17,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:22:17,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 06:22:17,266 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2020-11-12 06:22:17,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:22:17,266 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 06:22:17,266 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) [2020-11-12 06:22:17,267 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 06:22:17,267 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 06:22:17,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-12 06:22:17,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 06:22:17 BasicIcfg [2020-11-12 06:22:17,273 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 06:22:17,275 INFO L168 Benchmark]: Toolchain (without parser) took 8076.21 ms. Allocated memory was 302.0 MB in the beginning and 648.0 MB in the end (delta: 346.0 MB). Free memory was 271.5 MB in the beginning and 543.7 MB in the end (delta: -272.2 MB). Peak memory consumption was 74.7 MB. Max. memory is 16.0 GB. [2020-11-12 06:22:17,276 INFO L168 Benchmark]: CDTParser took 0.82 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 06:22:17,277 INFO L168 Benchmark]: CACSL2BoogieTranslator took 673.55 ms. Allocated memory is still 302.0 MB. Free memory was 270.8 MB in the beginning and 262.9 MB in the end (delta: 7.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 16.0 GB. [2020-11-12 06:22:17,278 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.31 ms. Allocated memory is still 302.0 MB. Free memory was 262.9 MB in the beginning and 261.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:22:17,278 INFO L168 Benchmark]: Boogie Preprocessor took 29.60 ms. Allocated memory is still 302.0 MB. Free memory was 261.2 MB in the beginning and 259.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:22:17,279 INFO L168 Benchmark]: RCFGBuilder took 532.75 ms. Allocated memory is still 302.0 MB. Free memory was 259.8 MB in the beginning and 275.8 MB in the end (delta: -16.0 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.0 GB. [2020-11-12 06:22:17,280 INFO L168 Benchmark]: TraceAbstraction took 6775.84 ms. Allocated memory was 302.0 MB in the beginning and 648.0 MB in the end (delta: 346.0 MB). Free memory was 274.8 MB in the beginning and 543.7 MB in the end (delta: -268.9 MB). Peak memory consumption was 77.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:22:17,284 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 673.55 ms. Allocated memory is still 302.0 MB. Free memory was 270.8 MB in the beginning and 262.9 MB in the end (delta: 7.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 49.31 ms. Allocated memory is still 302.0 MB. Free memory was 262.9 MB in the beginning and 261.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.60 ms. Allocated memory is still 302.0 MB. Free memory was 261.2 MB in the beginning and 259.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 532.75 ms. Allocated memory is still 302.0 MB. Free memory was 259.8 MB in the beginning and 275.8 MB in the end (delta: -16.0 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6775.84 ms. Allocated memory was 302.0 MB in the beginning and 648.0 MB in the end (delta: 346.0 MB). Free memory was 274.8 MB in the beginning and 543.7 MB in the end (delta: -268.9 MB). Peak memory consumption was 77.1 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: 6.6s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 696 SDtfs, 823 SDslu, 2671 SDs, 0 SdLazy, 339 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.4s 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: 0.7s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 485 NumberOfCodeBlocks, 485 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 475 ConstructedInterpolants, 0 QuantifiedInterpolants, 59625 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...