/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8a14012e553caa636f65c1137831746b6d9875cd-8a14012 [2021-08-06 13:52:32,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-06 13:52:32,473 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-06 13:52:32,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-06 13:52:32,602 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-08-06 13:52:32,657 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-06 13:52:32,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-06 13:52:32,658 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-06 13:52:32,658 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-06 13:52:32,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-06 13:52:32,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-06 13:52:32,661 INFO L138 SettingsManager]: * Use SBE=true [2021-08-06 13:52:32,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-06 13:52:32,662 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-06 13:52:32,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-06 13:52:32,663 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-06 13:52:32,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-06 13:52:32,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-06 13:52:32,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-06 13:52:32,663 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-06 13:52:32,664 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-06 13:52:32,664 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-06 13:52:32,664 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-06 13:52:32,664 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-06 13:52:32,664 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-06 13:52:32,664 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-06 13:52:32,664 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-06 13:52:32,665 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-06 13:52:32,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 13:52:32,665 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-06 13:52:32,665 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-06 13:52:32,665 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-06 13:52:32,665 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-06 13:52:32,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-06 13:52:32,666 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-06 13:52:32,666 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-06 13:52:32,666 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-06 13:52:32,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-06 13:52:32,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-06 13:52:32,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-06 13:52:32,987 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-06 13:52:32,988 INFO L275 PluginConnector]: CDTParser initialized [2021-08-06 13:52:32,989 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2021-08-06 13:52:33,065 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/163481df0/14bfe8c69ae54776ba13e2cdc777f932/FLAG99e2203e7 [2021-08-06 13:52:33,639 INFO L306 CDTParser]: Found 1 translation units. [2021-08-06 13:52:33,640 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2021-08-06 13:52:33,659 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/163481df0/14bfe8c69ae54776ba13e2cdc777f932/FLAG99e2203e7 [2021-08-06 13:52:34,037 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/163481df0/14bfe8c69ae54776ba13e2cdc777f932 [2021-08-06 13:52:34,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-06 13:52:34,040 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-06 13:52:34,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-06 13:52:34,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-06 13:52:34,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-06 13:52:34,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.08 01:52:34" (1/1) ... [2021-08-06 13:52:34,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76153e4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:52:34, skipping insertion in model container [2021-08-06 13:52:34,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.08 01:52:34" (1/1) ... [2021-08-06 13:52:34,056 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-06 13:52:34,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-06 13:52:34,307 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i[949,962] [2021-08-06 13:52:34,485 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-06 13:52:34,494 INFO L203 MainTranslator]: Completed pre-run [2021-08-06 13:52:34,505 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i[949,962] [2021-08-06 13:52:34,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-06 13:52:34,569 INFO L208 MainTranslator]: Completed translation [2021-08-06 13:52:34,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:52:34 WrapperNode [2021-08-06 13:52:34,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-06 13:52:34,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-06 13:52:34,571 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-06 13:52:34,571 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-06 13:52:34,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:52:34" (1/1) ... [2021-08-06 13:52:34,609 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:52:34" (1/1) ... [2021-08-06 13:52:34,627 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-06 13:52:34,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-06 13:52:34,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-06 13:52:34,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-06 13:52:34,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:52:34" (1/1) ... [2021-08-06 13:52:34,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:52:34" (1/1) ... [2021-08-06 13:52:34,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:52:34" (1/1) ... [2021-08-06 13:52:34,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:52:34" (1/1) ... [2021-08-06 13:52:34,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:52:34" (1/1) ... [2021-08-06 13:52:34,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:52:34" (1/1) ... [2021-08-06 13:52:34,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:52:34" (1/1) ... [2021-08-06 13:52:34,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-06 13:52:34,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-06 13:52:34,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-06 13:52:34,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-06 13:52:34,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:52:34" (1/1) ... [2021-08-06 13:52:34,656 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 13:52:34,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 13:52:34,674 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-06 13:52:34,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-06 13:52:34,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-06 13:52:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-06 13:52:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-06 13:52:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-06 13:52:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-06 13:52:34,722 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-06 13:52:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-06 13:52:34,722 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-06 13:52:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-06 13:52:34,722 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-06 13:52:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-08-06 13:52:34,722 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-08-06 13:52:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-06 13:52:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-06 13:52:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-06 13:52:34,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-06 13:52:34,724 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-06 13:52:35,194 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-06 13:52:35,196 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-06 13:52:35,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 01:52:35 BoogieIcfgContainer [2021-08-06 13:52:35,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-06 13:52:35,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-06 13:52:35,200 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-06 13:52:35,203 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-06 13:52:35,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.08 01:52:34" (1/3) ... [2021-08-06 13:52:35,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3274c950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.08 01:52:35, skipping insertion in model container [2021-08-06 13:52:35,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:52:34" (2/3) ... [2021-08-06 13:52:35,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3274c950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.08 01:52:35, skipping insertion in model container [2021-08-06 13:52:35,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 01:52:35" (3/3) ... [2021-08-06 13:52:35,207 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.opt.i [2021-08-06 13:52:35,212 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-06 13:52:35,213 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-06 13:52:35,213 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-06 13:52:35,213 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-06 13:52:35,262 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,262 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,262 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,262 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,263 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,263 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,263 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,263 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,263 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,263 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,264 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,264 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,264 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,264 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,264 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,264 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,265 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,265 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,265 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,265 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,265 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,265 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,265 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,266 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,266 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,266 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,266 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,266 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,266 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,267 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,267 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,267 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,274 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,274 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,275 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,275 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,275 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,275 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,275 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,275 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,275 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,275 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,276 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,276 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,276 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,276 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,276 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,276 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,279 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,279 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,279 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,280 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,284 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,285 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,285 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,285 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,287 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,287 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,287 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,287 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,289 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,289 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,289 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,289 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:35,291 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-06 13:52:35,327 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-06 13:52:35,333 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-06 13:52:35,333 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-08-06 13:52:35,344 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 114 places, 103 transitions, 226 flow [2021-08-06 13:52:37,333 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 38833 states, 38832 states have (on average 4.3550937371240215) internal successors, (169117), 38832 states have internal predecessors, (169117), 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) [2021-08-06 13:52:37,524 INFO L276 IsEmpty]: Start isEmpty. Operand has 38833 states, 38832 states have (on average 4.3550937371240215) internal successors, (169117), 38832 states have internal predecessors, (169117), 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) [2021-08-06 13:52:37,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-08-06 13:52:37,631 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:52:37,632 INFO L512 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] [2021-08-06 13:52:37,633 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-06 13:52:37,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:52:37,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1205527084, now seen corresponding path program 1 times [2021-08-06 13:52:37,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:52:37,645 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355134266] [2021-08-06 13:52:37,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:52:37,646 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:52:37,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:52:38,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:52:38,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:52:38,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355134266] [2021-08-06 13:52:38,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355134266] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:52:38,224 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:52:38,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-06 13:52:38,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94826236] [2021-08-06 13:52:38,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 13:52:38,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:52:38,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 13:52:38,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-06 13:52:38,328 INFO L87 Difference]: Start difference. First operand has 38833 states, 38832 states have (on average 4.3550937371240215) internal successors, (169117), 38832 states have internal predecessors, (169117), 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 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2021-08-06 13:52:39,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:52:39,351 INFO L93 Difference]: Finished difference Result 44321 states and 188717 transitions. [2021-08-06 13:52:39,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-06 13:52:39,353 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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 59 [2021-08-06 13:52:39,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:52:39,775 INFO L225 Difference]: With dead ends: 44321 [2021-08-06 13:52:39,775 INFO L226 Difference]: Without dead ends: 32316 [2021-08-06 13:52:39,776 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 165.2ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-08-06 13:52:39,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32316 states. [2021-08-06 13:52:41,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32316 to 32316. [2021-08-06 13:52:41,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32316 states, 32315 states have (on average 4.247779668884419) internal successors, (137267), 32315 states have internal predecessors, (137267), 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) [2021-08-06 13:52:41,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32316 states to 32316 states and 137267 transitions. [2021-08-06 13:52:41,483 INFO L78 Accepts]: Start accepts. Automaton has 32316 states and 137267 transitions. Word has length 59 [2021-08-06 13:52:41,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:52:41,484 INFO L470 AbstractCegarLoop]: Abstraction has 32316 states and 137267 transitions. [2021-08-06 13:52:41,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2021-08-06 13:52:41,485 INFO L276 IsEmpty]: Start isEmpty. Operand 32316 states and 137267 transitions. [2021-08-06 13:52:41,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-08-06 13:52:41,551 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:52:41,551 INFO L512 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] [2021-08-06 13:52:41,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-06 13:52:41,552 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-06 13:52:41,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:52:41,553 INFO L82 PathProgramCache]: Analyzing trace with hash -222015301, now seen corresponding path program 1 times [2021-08-06 13:52:41,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:52:41,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023072983] [2021-08-06 13:52:41,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:52:41,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:52:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:52:41,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:52:41,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:52:41,716 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023072983] [2021-08-06 13:52:41,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023072983] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:52:41,717 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:52:41,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-06 13:52:41,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578432450] [2021-08-06 13:52:41,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 13:52:41,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:52:41,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 13:52:41,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-06 13:52:41,720 INFO L87 Difference]: Start difference. First operand 32316 states and 137267 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-08-06 13:52:42,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:52:42,646 INFO L93 Difference]: Finished difference Result 60786 states and 256363 transitions. [2021-08-06 13:52:42,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-06 13:52:42,646 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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 61 [2021-08-06 13:52:42,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:52:43,007 INFO L225 Difference]: With dead ends: 60786 [2021-08-06 13:52:43,007 INFO L226 Difference]: Without dead ends: 42226 [2021-08-06 13:52:43,009 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 261.3ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-08-06 13:52:43,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42226 states. [2021-08-06 13:52:45,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42226 to 42226. [2021-08-06 13:52:45,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42226 states, 42225 states have (on average 4.221551213735938) internal successors, (178255), 42225 states have internal predecessors, (178255), 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) [2021-08-06 13:52:45,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42226 states to 42226 states and 178255 transitions. [2021-08-06 13:52:45,959 INFO L78 Accepts]: Start accepts. Automaton has 42226 states and 178255 transitions. Word has length 61 [2021-08-06 13:52:45,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:52:45,960 INFO L470 AbstractCegarLoop]: Abstraction has 42226 states and 178255 transitions. [2021-08-06 13:52:45,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-08-06 13:52:45,961 INFO L276 IsEmpty]: Start isEmpty. Operand 42226 states and 178255 transitions. [2021-08-06 13:52:46,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-08-06 13:52:46,100 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:52:46,101 INFO L512 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] [2021-08-06 13:52:46,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-06 13:52:46,101 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-06 13:52:46,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:52:46,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1591936414, now seen corresponding path program 1 times [2021-08-06 13:52:46,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:52:46,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838821018] [2021-08-06 13:52:46,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:52:46,104 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:52:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:52:46,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:52:46,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:52:46,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838821018] [2021-08-06 13:52:46,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838821018] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:52:46,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:52:46,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-06 13:52:46,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821717916] [2021-08-06 13:52:46,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 13:52:46,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:52:46,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 13:52:46,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-06 13:52:46,253 INFO L87 Difference]: Start difference. First operand 42226 states and 178255 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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) [2021-08-06 13:52:47,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:52:47,085 INFO L93 Difference]: Finished difference Result 45826 states and 192390 transitions. [2021-08-06 13:52:47,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-06 13:52:47,097 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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 63 [2021-08-06 13:52:47,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:52:47,365 INFO L225 Difference]: With dead ends: 45826 [2021-08-06 13:52:47,365 INFO L226 Difference]: Without dead ends: 39526 [2021-08-06 13:52:47,365 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 143.1ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-08-06 13:52:47,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39526 states. [2021-08-06 13:52:48,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39526 to 35401. [2021-08-06 13:52:48,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35401 states, 35400 states have (on average 4.200847457627119) internal successors, (148710), 35400 states have internal predecessors, (148710), 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) [2021-08-06 13:52:49,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35401 states to 35401 states and 148710 transitions. [2021-08-06 13:52:49,064 INFO L78 Accepts]: Start accepts. Automaton has 35401 states and 148710 transitions. Word has length 63 [2021-08-06 13:52:49,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:52:49,065 INFO L470 AbstractCegarLoop]: Abstraction has 35401 states and 148710 transitions. [2021-08-06 13:52:49,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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) [2021-08-06 13:52:49,065 INFO L276 IsEmpty]: Start isEmpty. Operand 35401 states and 148710 transitions. [2021-08-06 13:52:49,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-08-06 13:52:49,123 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:52:49,123 INFO L512 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] [2021-08-06 13:52:49,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-06 13:52:49,123 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-06 13:52:49,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:52:49,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1346259178, now seen corresponding path program 1 times [2021-08-06 13:52:49,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:52:49,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893747807] [2021-08-06 13:52:49,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:52:49,124 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:52:49,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:52:49,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:52:49,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:52:49,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893747807] [2021-08-06 13:52:49,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893747807] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:52:49,281 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:52:49,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-06 13:52:49,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83027213] [2021-08-06 13:52:49,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 13:52:49,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:52:49,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 13:52:49,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-06 13:52:49,282 INFO L87 Difference]: Start difference. First operand 35401 states and 148710 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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) [2021-08-06 13:52:49,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:52:49,945 INFO L93 Difference]: Finished difference Result 38201 states and 159615 transitions. [2021-08-06 13:52:49,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-06 13:52:49,946 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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 63 [2021-08-06 13:52:49,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:52:50,099 INFO L225 Difference]: With dead ends: 38201 [2021-08-06 13:52:50,100 INFO L226 Difference]: Without dead ends: 33301 [2021-08-06 13:52:50,100 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 117.5ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-08-06 13:52:50,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33301 states. [2021-08-06 13:52:51,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33301 to 29276. [2021-08-06 13:52:51,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29276 states, 29275 states have (on average 4.201024765157984) internal successors, (122985), 29275 states have internal predecessors, (122985), 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) [2021-08-06 13:52:51,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29276 states to 29276 states and 122985 transitions. [2021-08-06 13:52:51,470 INFO L78 Accepts]: Start accepts. Automaton has 29276 states and 122985 transitions. Word has length 63 [2021-08-06 13:52:51,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:52:51,471 INFO L470 AbstractCegarLoop]: Abstraction has 29276 states and 122985 transitions. [2021-08-06 13:52:51,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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) [2021-08-06 13:52:51,471 INFO L276 IsEmpty]: Start isEmpty. Operand 29276 states and 122985 transitions. [2021-08-06 13:52:51,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-08-06 13:52:51,523 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:52:51,523 INFO L512 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] [2021-08-06 13:52:51,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-06 13:52:51,524 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-06 13:52:51,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:52:51,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1229178027, now seen corresponding path program 1 times [2021-08-06 13:52:51,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:52:51,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280222780] [2021-08-06 13:52:51,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:52:51,525 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:52:51,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:52:51,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:52:51,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:52:51,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280222780] [2021-08-06 13:52:51,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280222780] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:52:51,680 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:52:51,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-06 13:52:51,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339904771] [2021-08-06 13:52:51,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-06 13:52:51,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:52:51,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-06 13:52:51,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-06 13:52:51,683 INFO L87 Difference]: Start difference. First operand 29276 states and 122985 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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) [2021-08-06 13:52:52,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:52:52,362 INFO L93 Difference]: Finished difference Result 41166 states and 172257 transitions. [2021-08-06 13:52:52,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-06 13:52:52,363 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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 65 [2021-08-06 13:52:52,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:52:52,439 INFO L225 Difference]: With dead ends: 41166 [2021-08-06 13:52:52,439 INFO L226 Difference]: Without dead ends: 21946 [2021-08-06 13:52:52,439 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 130.6ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-08-06 13:52:52,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21946 states. [2021-08-06 13:52:53,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21946 to 21946. [2021-08-06 13:52:53,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21946 states, 21945 states have (on average 4.081567555251766) internal successors, (89570), 21945 states have internal predecessors, (89570), 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) [2021-08-06 13:52:53,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21946 states to 21946 states and 89570 transitions. [2021-08-06 13:52:53,441 INFO L78 Accepts]: Start accepts. Automaton has 21946 states and 89570 transitions. Word has length 65 [2021-08-06 13:52:53,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:52:53,441 INFO L470 AbstractCegarLoop]: Abstraction has 21946 states and 89570 transitions. [2021-08-06 13:52:53,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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) [2021-08-06 13:52:53,442 INFO L276 IsEmpty]: Start isEmpty. Operand 21946 states and 89570 transitions. [2021-08-06 13:52:53,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-08-06 13:52:53,483 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:52:53,483 INFO L512 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] [2021-08-06 13:52:53,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-06 13:52:53,484 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-06 13:52:53,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:52:53,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1899563909, now seen corresponding path program 1 times [2021-08-06 13:52:53,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:52:53,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444063474] [2021-08-06 13:52:53,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:52:53,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:52:53,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:52:53,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:52:53,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:52:53,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444063474] [2021-08-06 13:52:53,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444063474] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:52:53,610 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:52:53,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-06 13:52:53,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960721341] [2021-08-06 13:52:53,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 13:52:53,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:52:53,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 13:52:53,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-06 13:52:53,612 INFO L87 Difference]: Start difference. First operand 21946 states and 89570 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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) [2021-08-06 13:52:53,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:52:53,868 INFO L93 Difference]: Finished difference Result 23546 states and 95630 transitions. [2021-08-06 13:52:53,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-06 13:52:53,869 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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 66 [2021-08-06 13:52:53,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:52:53,950 INFO L225 Difference]: With dead ends: 23546 [2021-08-06 13:52:53,950 INFO L226 Difference]: Without dead ends: 20746 [2021-08-06 13:52:53,951 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 98.7ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-08-06 13:52:54,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20746 states. [2021-08-06 13:52:54,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20746 to 19146. [2021-08-06 13:52:54,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19146 states, 19145 states have (on average 4.0527552885870985) internal successors, (77590), 19145 states have internal predecessors, (77590), 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) [2021-08-06 13:52:54,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19146 states to 19146 states and 77590 transitions. [2021-08-06 13:52:54,877 INFO L78 Accepts]: Start accepts. Automaton has 19146 states and 77590 transitions. Word has length 66 [2021-08-06 13:52:54,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:52:54,877 INFO L470 AbstractCegarLoop]: Abstraction has 19146 states and 77590 transitions. [2021-08-06 13:52:54,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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) [2021-08-06 13:52:54,878 INFO L276 IsEmpty]: Start isEmpty. Operand 19146 states and 77590 transitions. [2021-08-06 13:52:54,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-08-06 13:52:54,942 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:52:54,943 INFO L512 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] [2021-08-06 13:52:54,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-06 13:52:54,943 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-06 13:52:54,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:52:54,943 INFO L82 PathProgramCache]: Analyzing trace with hash 2053130620, now seen corresponding path program 1 times [2021-08-06 13:52:54,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:52:54,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631847497] [2021-08-06 13:52:54,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:52:54,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:52:54,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:52:55,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:52:55,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:52:55,110 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631847497] [2021-08-06 13:52:55,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631847497] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:52:55,112 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:52:55,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-06 13:52:55,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805183495] [2021-08-06 13:52:55,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-06 13:52:55,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:52:55,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-06 13:52:55,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-06 13:52:55,115 INFO L87 Difference]: Start difference. First operand 19146 states and 77590 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 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) [2021-08-06 13:52:55,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:52:55,409 INFO L93 Difference]: Finished difference Result 27106 states and 108808 transitions. [2021-08-06 13:52:55,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-06 13:52:55,410 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 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 68 [2021-08-06 13:52:55,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:52:55,454 INFO L225 Difference]: With dead ends: 27106 [2021-08-06 13:52:55,455 INFO L226 Difference]: Without dead ends: 13626 [2021-08-06 13:52:55,455 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 121.0ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-08-06 13:52:55,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13626 states. [2021-08-06 13:52:55,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13626 to 13626. [2021-08-06 13:52:55,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13626 states, 13625 states have (on average 3.947155963302752) internal successors, (53780), 13625 states have internal predecessors, (53780), 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) [2021-08-06 13:52:55,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13626 states to 13626 states and 53780 transitions. [2021-08-06 13:52:55,943 INFO L78 Accepts]: Start accepts. Automaton has 13626 states and 53780 transitions. Word has length 68 [2021-08-06 13:52:55,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:52:55,943 INFO L470 AbstractCegarLoop]: Abstraction has 13626 states and 53780 transitions. [2021-08-06 13:52:55,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 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) [2021-08-06 13:52:55,943 INFO L276 IsEmpty]: Start isEmpty. Operand 13626 states and 53780 transitions. [2021-08-06 13:52:55,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-08-06 13:52:55,966 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:52:55,966 INFO L512 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] [2021-08-06 13:52:55,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-06 13:52:55,966 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-06 13:52:55,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:52:55,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1366225162, now seen corresponding path program 1 times [2021-08-06 13:52:55,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:52:55,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861561470] [2021-08-06 13:52:55,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:52:55,967 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:52:55,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:52:56,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:52:56,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:52:56,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861561470] [2021-08-06 13:52:56,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861561470] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:52:56,101 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:52:56,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-06 13:52:56,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023963516] [2021-08-06 13:52:56,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-06 13:52:56,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:52:56,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-06 13:52:56,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-06 13:52:56,102 INFO L87 Difference]: Start difference. First operand 13626 states and 53780 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 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) [2021-08-06 13:52:56,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:52:56,522 INFO L93 Difference]: Finished difference Result 18586 states and 73540 transitions. [2021-08-06 13:52:56,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-06 13:52:56,523 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 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 [2021-08-06 13:52:56,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:52:56,562 INFO L225 Difference]: With dead ends: 18586 [2021-08-06 13:52:56,563 INFO L226 Difference]: Without dead ends: 7111 [2021-08-06 13:52:56,563 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 116.1ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-08-06 13:52:56,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7111 states. [2021-08-06 13:52:56,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7111 to 7111. [2021-08-06 13:52:56,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7111 states, 7110 states have (on average 3.89957805907173) internal successors, (27726), 7110 states have internal predecessors, (27726), 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) [2021-08-06 13:52:56,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7111 states to 7111 states and 27726 transitions. [2021-08-06 13:52:56,742 INFO L78 Accepts]: Start accepts. Automaton has 7111 states and 27726 transitions. Word has length 69 [2021-08-06 13:52:56,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:52:56,742 INFO L470 AbstractCegarLoop]: Abstraction has 7111 states and 27726 transitions. [2021-08-06 13:52:56,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 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) [2021-08-06 13:52:56,743 INFO L276 IsEmpty]: Start isEmpty. Operand 7111 states and 27726 transitions. [2021-08-06 13:52:56,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-08-06 13:52:56,753 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:52:56,753 INFO L512 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] [2021-08-06 13:52:56,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-06 13:52:56,753 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-06 13:52:56,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:52:56,754 INFO L82 PathProgramCache]: Analyzing trace with hash -347461052, now seen corresponding path program 1 times [2021-08-06 13:52:56,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:52:56,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798263518] [2021-08-06 13:52:56,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:52:56,754 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:52:56,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:52:56,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:52:56,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:52:56,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798263518] [2021-08-06 13:52:56,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798263518] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:52:56,897 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:52:56,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-06 13:52:56,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658583646] [2021-08-06 13:52:56,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-06 13:52:56,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:52:56,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-06 13:52:56,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-06 13:52:56,899 INFO L87 Difference]: Start difference. First operand 7111 states and 27726 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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) [2021-08-06 13:52:57,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:52:57,073 INFO L93 Difference]: Finished difference Result 6471 states and 25134 transitions. [2021-08-06 13:52:57,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-06 13:52:57,074 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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 70 [2021-08-06 13:52:57,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:52:57,074 INFO L225 Difference]: With dead ends: 6471 [2021-08-06 13:52:57,074 INFO L226 Difference]: Without dead ends: 0 [2021-08-06 13:52:57,074 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 136.8ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-08-06 13:52:57,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-06 13:52:57,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-06 13:52:57,075 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) [2021-08-06 13:52:57,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-06 13:52:57,075 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2021-08-06 13:52:57,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:52:57,075 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-06 13:52:57,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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) [2021-08-06 13:52:57,075 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-06 13:52:57,076 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-06 13:52:57,078 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-06 13:52:57,078 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-06 13:52:57,078 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-06 13:52:57,078 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-06 13:52:57,079 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-08-06 13:52:57,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-06 13:52:57,085 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-06 13:52:57,085 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-06 13:52:57,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.08 01:52:57 BasicIcfg [2021-08-06 13:52:57,087 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-06 13:52:57,087 INFO L168 Benchmark]: Toolchain (without parser) took 23046.87 ms. Allocated memory was 173.0 MB in the beginning and 6.8 GB in the end (delta: 6.6 GB). Free memory was 136.7 MB in the beginning and 4.9 GB in the end (delta: -4.7 GB). Peak memory consumption was 1.9 GB. Max. memory is 8.0 GB. [2021-08-06 13:52:57,087 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 173.0 MB. Free memory is still 155.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-06 13:52:57,088 INFO L168 Benchmark]: CACSL2BoogieTranslator took 525.03 ms. Allocated memory is still 173.0 MB. Free memory was 136.6 MB in the beginning and 145.7 MB in the end (delta: -9.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-08-06 13:52:57,088 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.49 ms. Allocated memory is still 173.0 MB. Free memory was 145.7 MB in the beginning and 143.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-06 13:52:57,088 INFO L168 Benchmark]: Boogie Preprocessor took 20.82 ms. Allocated memory is still 173.0 MB. Free memory was 143.6 MB in the beginning and 142.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-06 13:52:57,089 INFO L168 Benchmark]: RCFGBuilder took 549.65 ms. Allocated memory is still 173.0 MB. Free memory was 142.2 MB in the beginning and 115.9 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2021-08-06 13:52:57,089 INFO L168 Benchmark]: TraceAbstraction took 21886.64 ms. Allocated memory was 173.0 MB in the beginning and 6.8 GB in the end (delta: 6.6 GB). Free memory was 115.6 MB in the beginning and 4.9 GB in the end (delta: -4.7 GB). Peak memory consumption was 1.9 GB. Max. memory is 8.0 GB. [2021-08-06 13:52:57,089 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 173.0 MB. Free memory is still 155.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 525.03 ms. Allocated memory is still 173.0 MB. Free memory was 136.6 MB in the beginning and 145.7 MB in the end (delta: -9.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 56.49 ms. Allocated memory is still 173.0 MB. Free memory was 145.7 MB in the beginning and 143.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 20.82 ms. Allocated memory is still 173.0 MB. Free memory was 143.6 MB in the beginning and 142.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 549.65 ms. Allocated memory is still 173.0 MB. Free memory was 142.2 MB in the beginning and 115.9 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 21886.64 ms. Allocated memory was 173.0 MB in the beginning and 6.8 GB in the end (delta: 6.6 GB). Free memory was 115.6 MB in the beginning and 4.9 GB in the end (delta: -4.7 GB). Peak memory consumption was 1.9 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 134 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 21757.0ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 674.7ms, AutomataDifference: 6840.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2077.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1245 SDtfs, 2185 SDslu, 4387 SDs, 0 SdLazy, 295 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 558.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1290.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=42226occurred in iteration=2, InterpolantAutomatonStates: 99, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 10307.9ms AutomataMinimizationTime, 9 MinimizatonAttempts, 9750 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 33.6ms SsaConstructionTime, 188.4ms SatisfiabilityAnalysisTime, 1431.6ms InterpolantComputationTime, 584 NumberOfCodeBlocks, 584 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 575 ConstructedInterpolants, 0 QuantifiedInterpolants, 2901 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-06 13:52:57,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...