/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-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/mix047_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 20:47:16,012 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 20:47:16,015 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 20:47:16,072 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 20:47:16,073 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 20:47:16,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 20:47:16,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 20:47:16,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 20:47:16,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 20:47:16,083 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 20:47:16,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 20:47:16,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 20:47:16,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 20:47:16,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 20:47:16,089 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 20:47:16,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 20:47:16,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 20:47:16,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 20:47:16,095 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 20:47:16,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 20:47:16,104 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 20:47:16,107 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 20:47:16,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 20:47:16,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 20:47:16,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-20 20:47:16,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 20:47:16,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 20:47:16,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 20:47:16,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 20:47:16,141 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 20:47:16,141 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 20:47:16,142 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 20:47:16,143 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 20:47:16,143 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 20:47:16,145 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 20:47:16,146 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 20:47:16,147 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-keepdead.epf [2021-01-20 20:47:16,205 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 20:47:16,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 20:47:16,210 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 20:47:16,210 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 20:47:16,211 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 20:47:16,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 20:47:16,211 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 20:47:16,211 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 20:47:16,212 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 20:47:16,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 20:47:16,213 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 20:47:16,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 20:47:16,214 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 20:47:16,214 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 20:47:16,214 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 20:47:16,214 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 20:47:16,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 20:47:16,215 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 20:47:16,215 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 20:47:16,215 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 20:47:16,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 20:47:16,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 20:47:16,216 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 20:47:16,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 20:47:16,217 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 20:47:16,217 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 20:47:16,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 20:47:16,217 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 20:47:16,217 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 20:47:16,218 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2021-01-20 20:47:16,218 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 20:47:16,218 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 20:47:16,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 20:47:16,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 20:47:16,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 20:47:16,688 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 20:47:16,689 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 20:47:16,690 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix047_pso.opt.i [2021-01-20 20:47:16,767 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca4735401/5c783781633d42e49f6f27ca302a6dc6/FLAGfd56ee079 [2021-01-20 20:47:17,385 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 20:47:17,386 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix047_pso.opt.i [2021-01-20 20:47:17,402 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca4735401/5c783781633d42e49f6f27ca302a6dc6/FLAGfd56ee079 [2021-01-20 20:47:17,666 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca4735401/5c783781633d42e49f6f27ca302a6dc6 [2021-01-20 20:47:17,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 20:47:17,671 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 20:47:17,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 20:47:17,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 20:47:17,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 20:47:17,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 08:47:17" (1/1) ... [2021-01-20 20:47:17,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ed84099 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 08:47:17, skipping insertion in model container [2021-01-20 20:47:17,689 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 08:47:17" (1/1) ... [2021-01-20 20:47:17,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 20:47:17,768 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 20:47:18,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 20:47:18,264 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 20:47:18,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 20:47:18,490 INFO L208 MainTranslator]: Completed translation [2021-01-20 20:47:18,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 08:47:18 WrapperNode [2021-01-20 20:47:18,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 20:47:18,495 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 20:47:18,495 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 20:47:18,497 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 20:47:18,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 08:47:18" (1/1) ... [2021-01-20 20:47:18,541 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 08:47:18" (1/1) ... [2021-01-20 20:47:18,582 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 20:47:18,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 20:47:18,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 20:47:18,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 20:47:18,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 08:47:18" (1/1) ... [2021-01-20 20:47:18,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 08:47:18" (1/1) ... [2021-01-20 20:47:18,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 08:47:18" (1/1) ... [2021-01-20 20:47:18,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 08:47:18" (1/1) ... [2021-01-20 20:47:18,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 08:47:18" (1/1) ... [2021-01-20 20:47:18,617 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 08:47:18" (1/1) ... [2021-01-20 20:47:18,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 08:47:18" (1/1) ... [2021-01-20 20:47:18,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 20:47:18,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 20:47:18,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 20:47:18,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 20:47:18,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 08:47:18" (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 [2021-01-20 20:47:18,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 20:47:18,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 20:47:18,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 20:47:18,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 20:47:18,742 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 20:47:18,743 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 20:47:18,743 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 20:47:18,744 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 20:47:18,744 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 20:47:18,744 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 20:47:18,744 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-01-20 20:47:18,745 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-01-20 20:47:18,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 20:47:18,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 20:47:18,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 20:47:18,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 20:47:18,748 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 20:47:21,259 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 20:47:21,259 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2021-01-20 20:47:21,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 08:47:21 BoogieIcfgContainer [2021-01-20 20:47:21,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 20:47:21,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 20:47:21,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 20:47:21,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 20:47:21,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 08:47:17" (1/3) ... [2021-01-20 20:47:21,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bc13662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 08:47:21, skipping insertion in model container [2021-01-20 20:47:21,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 08:47:18" (2/3) ... [2021-01-20 20:47:21,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bc13662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 08:47:21, skipping insertion in model container [2021-01-20 20:47:21,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 08:47:21" (3/3) ... [2021-01-20 20:47:21,272 INFO L111 eAbstractionObserver]: Analyzing ICFG mix047_pso.opt.i [2021-01-20 20:47:21,291 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 20:47:21,291 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 20:47:21,299 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-01-20 20:47:21,301 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 20:47:21,359 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,360 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,360 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,360 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,360 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,360 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,361 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,361 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,361 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,362 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,362 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,362 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,362 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,363 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,363 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,363 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,363 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,363 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,363 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,363 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,364 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,364 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,365 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,366 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,367 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,367 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,367 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,367 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,368 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,368 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,368 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,369 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,369 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,370 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,370 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,370 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,370 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,370 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,370 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,371 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,371 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,371 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,372 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,372 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,372 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,372 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,373 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,373 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,374 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,374 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,375 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,375 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,375 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,375 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,375 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,375 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,376 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,376 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,376 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,376 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,376 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,376 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,377 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,377 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,378 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,378 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,378 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,378 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,378 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,379 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,379 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,379 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,379 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,379 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,380 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,381 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,381 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,381 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,382 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,382 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,383 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,383 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,383 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,383 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,383 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,384 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,384 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,384 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,385 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,385 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,385 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,385 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,386 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,386 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,386 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,387 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,391 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,395 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,397 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,397 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,397 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,403 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,404 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,404 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,404 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,404 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,407 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,408 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,408 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,408 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,408 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,409 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,409 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,409 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,409 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,409 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,409 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,410 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,410 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,410 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,413 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,413 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,413 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,413 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,415 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,416 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,416 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,416 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 20:47:21,418 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 20:47:21,433 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-01-20 20:47:21,477 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 20:47:21,478 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 20:47:21,478 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 20:47:21,478 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 20:47:21,478 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 20:47:21,478 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 20:47:21,478 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 20:47:21,478 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 20:47:21,498 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 130 places, 120 transitions, 260 flow [2021-01-20 20:48:00,800 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 135506 states, 135502 states have (on average 4.5474236542634054) internal successors, (616185), 135505 states have internal predecessors, (616185), 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) [2021-01-20 20:48:01,017 INFO L276 IsEmpty]: Start isEmpty. Operand has 135506 states, 135502 states have (on average 4.5474236542634054) internal successors, (616185), 135505 states have internal predecessors, (616185), 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) [2021-01-20 20:48:01,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-01-20 20:48:01,038 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 20:48:01,039 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 20:48:01,040 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 20:48:01,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 20:48:01,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1353144403, now seen corresponding path program 1 times [2021-01-20 20:48:01,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 20:48:01,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382138494] [2021-01-20 20:48:01,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 20:48:01,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 20:48:01,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 20:48:01,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382138494] [2021-01-20 20:48:01,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 20:48:01,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-20 20:48:01,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201165056] [2021-01-20 20:48:01,472 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-20 20:48:01,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 20:48:01,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-20 20:48:01,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-20 20:48:01,733 INFO L87 Difference]: Start difference. First operand has 135506 states, 135502 states have (on average 4.5474236542634054) internal successors, (616185), 135505 states have internal predecessors, (616185), 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 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 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) [2021-01-20 20:48:05,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 20:48:05,055 INFO L93 Difference]: Finished difference Result 115514 states and 512676 transitions. [2021-01-20 20:48:05,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-20 20:48:05,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 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 56 [2021-01-20 20:48:05,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 20:48:05,062 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-20 20:48:05,063 INFO L78 Accepts]: Start accepts. Automaton has 115514 states and 512676 transitions. Word has length 56 [2021-01-20 20:48:05,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 20:48:05,065 INFO L481 AbstractCegarLoop]: Abstraction has 115514 states and 512676 transitions. [2021-01-20 20:48:05,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 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) [2021-01-20 20:48:05,066 INFO L276 IsEmpty]: Start isEmpty. Operand 115514 states and 512676 transitions. [2021-01-20 20:48:05,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-01-20 20:48:05,142 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 20:48:05,143 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 20:48:05,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 20:48:05,143 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 20:48:05,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 20:48:05,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1339002459, now seen corresponding path program 1 times [2021-01-20 20:48:05,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 20:48:05,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301720857] [2021-01-20 20:48:05,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 20:48:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 20:48:05,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 20:48:05,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301720857] [2021-01-20 20:48:05,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 20:48:05,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-20 20:48:05,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187612103] [2021-01-20 20:48:05,595 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-20 20:48:05,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 20:48:05,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-20 20:48:05,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-01-20 20:48:05,596 INFO L87 Difference]: Start difference. First operand 115514 states and 512676 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 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) [2021-01-20 20:48:08,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 20:48:08,517 INFO L93 Difference]: Finished difference Result 172942 states and 765670 transitions. [2021-01-20 20:48:08,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-01-20 20:48:08,519 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 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 69 [2021-01-20 20:48:08,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 20:48:08,520 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2021-01-20 20:48:08,520 INFO L78 Accepts]: Start accepts. Automaton has 172942 states and 765670 transitions. Word has length 69 [2021-01-20 20:48:08,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 20:48:08,521 INFO L481 AbstractCegarLoop]: Abstraction has 172942 states and 765670 transitions. [2021-01-20 20:48:08,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 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) [2021-01-20 20:48:08,522 INFO L276 IsEmpty]: Start isEmpty. Operand 172942 states and 765670 transitions. [2021-01-20 20:48:08,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-01-20 20:48:08,653 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 20:48:08,653 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 20:48:08,653 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 20:48:08,653 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 20:48:08,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 20:48:08,654 INFO L82 PathProgramCache]: Analyzing trace with hash -377977539, now seen corresponding path program 1 times [2021-01-20 20:48:08,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 20:48:08,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551916087] [2021-01-20 20:48:08,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 20:48:08,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 20:48:08,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 20:48:08,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551916087] [2021-01-20 20:48:08,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 20:48:08,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 20:48:08,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40973911] [2021-01-20 20:48:08,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 20:48:08,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 20:48:08,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 20:48:08,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 20:48:08,939 INFO L87 Difference]: Start difference. First operand 172942 states and 765670 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 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) [2021-01-20 20:48:11,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 20:48:11,670 INFO L93 Difference]: Finished difference Result 205478 states and 906510 transitions. [2021-01-20 20:48:11,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 20:48:11,673 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 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 71 [2021-01-20 20:48:11,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 20:48:11,679 INFO L769 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 [2021-01-20 20:48:11,679 INFO L78 Accepts]: Start accepts. Automaton has 205478 states and 906510 transitions. Word has length 71 [2021-01-20 20:48:11,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 20:48:11,681 INFO L481 AbstractCegarLoop]: Abstraction has 205478 states and 906510 transitions. [2021-01-20 20:48:11,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 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) [2021-01-20 20:48:11,682 INFO L276 IsEmpty]: Start isEmpty. Operand 205478 states and 906510 transitions. [2021-01-20 20:48:11,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-01-20 20:48:11,889 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 20:48:11,890 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 20:48:11,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 20:48:11,890 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 20:48:11,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 20:48:11,891 INFO L82 PathProgramCache]: Analyzing trace with hash 355187134, now seen corresponding path program 1 times [2021-01-20 20:48:11,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 20:48:11,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620592230] [2021-01-20 20:48:11,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 20:48:11,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 20:48:12,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 20:48:12,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620592230] [2021-01-20 20:48:12,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 20:48:12,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 20:48:12,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141662232] [2021-01-20 20:48:12,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 20:48:12,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 20:48:12,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 20:48:12,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 20:48:12,105 INFO L87 Difference]: Start difference. First operand 205478 states and 906510 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 20:48:17,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 20:48:17,067 INFO L93 Difference]: Finished difference Result 338870 states and 1489062 transitions. [2021-01-20 20:48:17,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 20:48:17,068 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-01-20 20:48:17,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 20:48:17,069 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 20:48:17,069 INFO L78 Accepts]: Start accepts. Automaton has 338870 states and 1489062 transitions. Word has length 73 [2021-01-20 20:48:17,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 20:48:17,069 INFO L481 AbstractCegarLoop]: Abstraction has 338870 states and 1489062 transitions. [2021-01-20 20:48:17,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 20:48:17,070 INFO L276 IsEmpty]: Start isEmpty. Operand 338870 states and 1489062 transitions. [2021-01-20 20:48:17,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-01-20 20:48:17,399 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 20:48:17,399 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 20:48:17,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 20:48:17,400 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 20:48:17,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 20:48:17,401 INFO L82 PathProgramCache]: Analyzing trace with hash 2004598941, now seen corresponding path program 1 times [2021-01-20 20:48:17,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 20:48:17,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538254291] [2021-01-20 20:48:17,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 20:48:17,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 20:48:17,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 20:48:17,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538254291] [2021-01-20 20:48:17,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 20:48:17,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 20:48:17,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867479012] [2021-01-20 20:48:17,703 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 20:48:17,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 20:48:17,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 20:48:17,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 20:48:17,705 INFO L87 Difference]: Start difference. First operand 338870 states and 1489062 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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) [2021-01-20 20:48:24,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 20:48:24,951 INFO L93 Difference]: Finished difference Result 576054 states and 2519592 transitions. [2021-01-20 20:48:24,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 20:48:24,952 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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 75 [2021-01-20 20:48:24,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 20:48:24,952 INFO L769 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 [2021-01-20 20:48:24,952 INFO L78 Accepts]: Start accepts. Automaton has 576054 states and 2519592 transitions. Word has length 75 [2021-01-20 20:48:24,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 20:48:24,953 INFO L481 AbstractCegarLoop]: Abstraction has 576054 states and 2519592 transitions. [2021-01-20 20:48:24,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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) [2021-01-20 20:48:24,953 INFO L276 IsEmpty]: Start isEmpty. Operand 576054 states and 2519592 transitions. [2021-01-20 20:48:26,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-01-20 20:48:26,029 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 20:48:26,029 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 20:48:26,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 20:48:26,037 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 20:48:26,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 20:48:26,044 INFO L82 PathProgramCache]: Analyzing trace with hash 896264153, now seen corresponding path program 1 times [2021-01-20 20:48:26,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 20:48:26,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011028701] [2021-01-20 20:48:26,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 20:48:26,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 20:48:26,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 20:48:26,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011028701] [2021-01-20 20:48:26,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 20:48:26,622 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 20:48:26,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816475110] [2021-01-20 20:48:26,623 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 20:48:26,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 20:48:26,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 20:48:26,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 20:48:26,627 INFO L87 Difference]: Start difference. First operand 576054 states and 2519592 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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) [2021-01-20 20:48:38,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 20:48:38,604 INFO L93 Difference]: Finished difference Result 926166 states and 4010080 transitions. [2021-01-20 20:48:38,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 20:48:38,605 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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 76 [2021-01-20 20:48:38,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 20:48:38,605 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 20:48:38,606 INFO L78 Accepts]: Start accepts. Automaton has 926166 states and 4010080 transitions. Word has length 76 [2021-01-20 20:48:38,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 20:48:38,606 INFO L481 AbstractCegarLoop]: Abstraction has 926166 states and 4010080 transitions. [2021-01-20 20:48:38,606 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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) [2021-01-20 20:48:38,606 INFO L276 IsEmpty]: Start isEmpty. Operand 926166 states and 4010080 transitions. [2021-01-20 20:48:39,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-01-20 20:48:39,033 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 20:48:39,034 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 20:48:39,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 20:48:39,035 INFO L429 AbstractCegarLoop]: === Iteration 7 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 20:48:39,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 20:48:39,035 INFO L82 PathProgramCache]: Analyzing trace with hash -630113412, now seen corresponding path program 1 times [2021-01-20 20:48:39,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 20:48:39,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442067695] [2021-01-20 20:48:39,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 20:48:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 20:48:39,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 20:48:39,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442067695] [2021-01-20 20:48:39,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 20:48:39,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-20 20:48:39,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563332021] [2021-01-20 20:48:39,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-20 20:48:39,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 20:48:39,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-20 20:48:39,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-01-20 20:48:39,314 INFO L87 Difference]: Start difference. First operand 926166 states and 4010080 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 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) [2021-01-20 20:48:58,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 20:48:58,342 INFO L93 Difference]: Finished difference Result 1183774 states and 5103368 transitions. [2021-01-20 20:48:58,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-20 20:48:58,343 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 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 77 [2021-01-20 20:48:58,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 20:48:58,344 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-01-20 20:48:58,344 INFO L78 Accepts]: Start accepts. Automaton has 1183774 states and 5103368 transitions. Word has length 77 [2021-01-20 20:48:58,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 20:48:58,344 INFO L481 AbstractCegarLoop]: Abstraction has 1183774 states and 5103368 transitions. [2021-01-20 20:48:58,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 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) [2021-01-20 20:48:58,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1183774 states and 5103368 transitions. [2021-01-20 20:48:59,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-01-20 20:48:59,433 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 20:48:59,436 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 20:48:59,437 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 20:48:59,437 INFO L429 AbstractCegarLoop]: === Iteration 8 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 20:48:59,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 20:48:59,439 INFO L82 PathProgramCache]: Analyzing trace with hash 600572222, now seen corresponding path program 1 times [2021-01-20 20:48:59,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 20:48:59,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771444219] [2021-01-20 20:48:59,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 20:48:59,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 20:49:00,105 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2021-01-20 20:49:00,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 20:49:00,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771444219] [2021-01-20 20:49:00,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 20:49:00,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-01-20 20:49:00,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229103633] [2021-01-20 20:49:00,451 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-20 20:49:00,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 20:49:00,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-20 20:49:00,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-01-20 20:49:00,457 INFO L87 Difference]: Start difference. First operand 1183774 states and 5103368 transitions. Second operand has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 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) [2021-01-20 20:49:25,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 20:49:25,681 INFO L93 Difference]: Finished difference Result 1396876 states and 6022120 transitions. [2021-01-20 20:49:25,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-01-20 20:49:25,682 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 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 78 [2021-01-20 20:49:25,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 20:49:25,683 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2021-01-20 20:49:25,684 INFO L78 Accepts]: Start accepts. Automaton has 1396876 states and 6022120 transitions. Word has length 78 [2021-01-20 20:49:25,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 20:49:25,687 INFO L481 AbstractCegarLoop]: Abstraction has 1396876 states and 6022120 transitions. [2021-01-20 20:49:25,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 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) [2021-01-20 20:49:25,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1396876 states and 6022120 transitions. [2021-01-20 20:49:26,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-01-20 20:49:26,884 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 20:49:26,885 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 20:49:26,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-20 20:49:26,885 INFO L429 AbstractCegarLoop]: === Iteration 9 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 20:49:26,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 20:49:26,886 INFO L82 PathProgramCache]: Analyzing trace with hash 995309974, now seen corresponding path program 2 times [2021-01-20 20:49:26,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 20:49:26,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255727941] [2021-01-20 20:49:26,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 20:49:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 20:49:27,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 20:49:27,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255727941] [2021-01-20 20:49:27,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 20:49:27,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-01-20 20:49:27,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282726184] [2021-01-20 20:49:27,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-01-20 20:49:27,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 20:49:27,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-01-20 20:49:27,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-01-20 20:49:27,523 INFO L87 Difference]: Start difference. First operand 1396876 states and 6022120 transitions. Second operand has 12 states, 12 states have (on average 6.5) internal successors, (78), 12 states have internal predecessors, (78), 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)